2023 Australian Formula Open Series

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The 2023 Australian Formula Open - powered by Racefuels was a multi-event open-wheel single seater motor racing championship. This was the inaugural season of the championship, founded by two-time Australian Gold Star winner Tim Macrow as a direct successor to the Australian Formula 3 championship. [1]

Drivers competed to win a S5000 test and free entry to a race in the S5000 Championship in 2024 or later. [2]

Trent Grubel, driving for Tim Macrow Racing, won the overall championship and with it the AFO1 class championship, three points ahead of his teammate Ryan How. Matthew Roesler, driving for his privateer State Fleet Services team, won the AFO2 class championship, while AGI Sport's Kristian Janev was victorious in the AFO4 class.

Teams and drivers

The championship was structured in four classes, albeit only three classes received entries through the season. AFO1 encompassed all Formula 3 machinery, with several chassis and engine manufacturers represented. AFO2 catered to Toyota Racing Series, Formula Renault and older F3 cars. AFO3 served all other invitational entries, but did not receive any entries, while AFO4 was reserved for Formula 4 cars. [3] [4]

AFO1 entries

TeamNo.CarDriverRounds
Gilmour Racing1 Dallara F308/11 Mercedes-Benz Flag of Australia (converted).svg Daniel Price1
Flag of Australia (converted).svg Jon Collins2, 4–5
Flag of Australia (converted).svg Kyle Evans6
17 Dallara F307 Flag of Australia (converted).svg Chris Gilmour4–5
R-Tek Motorsport Services2 Dallara F307 Opel Flag of Australia (converted).svg Andrew Roberts1–3, 6
Genesis Offices4 Dallara F308 Flag of Australia (converted).svg Robert Rowe6
Sydney Photo Booth5 Dallara F304 Renault Flag of Australia (converted).svg Lawrence Katsidis6
231–2
Tim Macrow Racing8 Dallara F308/11 Flag of Australia (converted).svg Miles Bromley2–4
95–6
22 Dallara F308/11 Mercedes-Benz Flag of Australia (converted).svg Beau Russell5–6
Flag of Australia (converted).svg Winston Van Laarhoven1, 3–4
242
27 Dallara F308/11 Mercedes-Benz Flag of Australia (converted).svg Ryan HowAll
74 Dallara F312 Mercedes-Benz Flag of Australia (converted).svg Trent GrubelAll
Ruff Racing9 Mygale M11 Flag of Australia (converted).svg Gerrit Ruff2
116
TWS Motorsport14 Mygale M11 Flag of Australia (converted).svg Trent Shirvington2–3, 5
Formula Race Car Association17 Dallara F397 Volkswagen Flag of Australia (converted).svg Shayne Morrow1–2, 6
41 Dallara F307 Opel Flag of Australia (converted).svg Greg Muddle1–2
48 Dallara F3 Flag of Australia (converted).svg Ron Coath2
55 Dallara F397 Flag of Australia (converted).svg Glenn Lynch1–2
CO Machining21 Dallara F304 Opel Flag of Australia (converted).svg Graeme Holmes1–2
Baker Motorsport / Team Penrite22 Dallara F399 Flag of Australia (converted).svg Rodney Baker2, 6
CPL37 Dallara F3 Flag of Australia (converted).svg Ben Turner2
Team Rod Anderson38 Reynard 893 Toyota Flag of Australia (converted).svg Rod Anderson1–2
Douglas Barry Specials56 Reynard 92D Holden Flag of Australia (converted).svg Douglas Barry1–2, 6
99 Motorsport99 Dallara F308/11 Volkswagen Flag of Australia (converted).svg Ryan AstleyAll
Sources: [5] [6] [7] [8] [9] [10]

AFO2 entries

TeamNo.CarDriverRounds
State Fleet Services3 Tatuus FT50 Flag of Australia (converted).svg Matthew Roesler2
43, 5
AON Investments Pty Ltd19 Ralt RT4 Flag of Australia (converted).svg Arthur Abrahams 6
RMS Racing25 Cheetah Mk7 Flag of Australia (converted).svg Robert Sviderskas2
TCM Race Services53 Tatuus FT50 Flag of Australia (converted).svg Matthew Woodland3
Jetforms.com.au93 Tatuus FT50 Flag of Australia (converted).svg Christopher Slusarski3, 6
DiBiase Carpentry127 Tatuus FT50 Flag of Australia (converted).svg Paul di Biase2–3, 6
Sources: [5] [6] [7] [9] [10]

AFO4 entries

TeamNo.CarDriverRounds
AGI Sport6 Mygale M14-F4 Flag of Australia (converted).svg Brodie Norris2–6
40 Mygale M14-F4 Flag of Australia (converted).svg Tim Boydle1
60 Tatuus F4-T014 Flag of Australia (converted).svg Jayden Ojeda 2
62 Tatuus F4-T014 Flag of the United Kingdom.svg Craig McLatchey1
66 Mygale M14-F4 Flag of Australia (converted).svg Kristian Janev2–6
771
Mygale M14-F4 Flag of Australia (converted).svg Peter Bouzinelos4–6
7 Mygale M14-F4 Flag of Australia (converted).svg Mark Wilson6
711–2
Tim Macrow Racing16 Mygale M14-F4 Flag of Australia (converted).svg Hanming Huang1, 3–6
25 Mygale M14-F4 Flag of Australia (converted).svg Thomas Gallagher4–6
Patrizi Corse21 Mygale M14-F4 Flag of Australia (converted).svg Ryan McMillan4–6
Formula Race Car Association51 Tatuus F4-T014 Flag of Australia (converted).svg Nathan Beer1–2, 6
Sources: [5] [6] [7] [8] [9] [10]

Race calendar

The 2023 calendar was first announced on 20 December 2022. It consisted of six rounds across six circuits all over Australia. [11]

RoundCircuitDateSupport billMap of circuit locations
1R1 Flag of Victoria (Australia).svg Winton Motor Raceway
Winton, Victoria
4 MarchNSW Formula Vee Championship
NSW Formula Ford Championship
NSW State Championships
R25 March
R3
2R1 Flag of New South Wales.svg Sydney Motorsport Park
Eastern Creek, New South Wales
15 AprilNSW Formula Vee Championship
Australian Formula Ford Championship
NSW Formula Ford Championship
NSW State Championships
R216 April
R3
3R1 Flag of South Australia.svg The Bend Motorsport Park
Tailem Bend, South Australia
10 JuneLamborghini Super Trofeo Asia
Australian Prototype Series
South Australia Tin Tops
BMW Drivers Cup
R211 June
R3
4R1 Flag of Queensland.svg Queensland Raceway
Willowbank, Queensland
5 AugustMotorsport Australia Trophy Series
TGR Australia Scholarship Series
National Sports Sedan Series
Radical Cup Australia
R26 August
R3
5R1 Flag of Victoria (Australia).svg Sandown Raceway
Melbourne, Victoria
9 September TCR Australia Touring Car Series
V8 Touring Car Series
Trans-Am Series
GT4 Australia Series
R210 September
R3
6R1 Flag of Victoria (Australia).svg Phillip Island Grand Prix Circuit
Ventnor, Victoria
25 NovemberIsland Magic
Historic Touring Car Series
Australian Formula Vee
NSW Formula Car Championship
R2
R326 November

Race results

RoundCircuitPole positionFastest lapAFO1 winnerAFO2 winnerAFO4 winner
1R1 Flag of Victoria (Australia).svg Winton Motor Raceway
Winton, Victoria
Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Trent Grubelno entries Flag of Australia (converted).svg Kristian Janev
R2 Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Kristian Janev
R3 Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Kristian Janev
2R1 Flag of New South Wales.svg Sydney Motorsport Park
Eastern Creek, New South Wales
Flag of Australia (converted).svg Trent Grubelrace declared a non-event after multiple crashes at the start [12]
R2 Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Matthew Roesler Flag of Australia (converted).svg Brodie Norris
R3 Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Paul di Biase Flag of Australia (converted).svg Kristian Janev
3R1 Flag of South Australia.svg The Bend Motorsport Park
Tailem Bend, South Australia
Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Christopher Slusarski Flag of Australia (converted).svg Brodie Norris
R2 Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Christopher Slusarski Flag of Australia (converted).svg Brodie Norris
R3 Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Christopher Slusarski Flag of Australia (converted).svg Brodie Norris
4R1 Flag of Queensland.svg Queensland Raceway
Willowbank, Queensland
Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Miles Bromley Flag of Australia (converted).svg Trent Grubelno entries Flag of Australia (converted).svg Brodie Norris
R2 Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Brodie Norris
R3 Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Peter Bouzinelous
5R1 Flag of Victoria (Australia).svg Sandown Raceway
Melbourne, Victoria
Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Ryan Howno classified finishers Flag of Australia (converted).svg Brodie Norris
R2 Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Matthew Roesler Flag of Australia (converted).svg Brodie Norris
R3 Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Matthew Roesler Flag of Australia (converted).svg Kristian Janev
6R1 Flag of Victoria (Australia).svg Phillip Island Grand Prix Circuit
Ventnor, Victoria
Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Trent Grubel Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Ryan McMillan Flag of Australia (converted).svg Christopher Slusarski
R2 Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Ryan McMillan Flag of Australia (converted).svg Paul di Biase
R3 Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Ryan How Flag of Australia (converted).svg Ryan McMillan Flag of Australia (converted).svg Paul di Biase

Season report

The inaugural Australian Formula Open series kicked off at Winton Motor Raceway. A conjoined grid with the NSW Formula Car Championship saw 19 entries tackle the weekend, and Tim Macrow Racing's Trent Grubel took pole position for the first race. He converted that to a win ahead of his teammates Winston van Laarhoven and Ryan How. Grubel went on to sweep the weekend, with the podiums of both other races completed by 99 Motorsport's Ryan Astley and How. AGI Sport's Kristian Janev also took a triple win in the AFO4 class to take the class lead ahead of his teammate Mark Wilson.

Round two was held at Sydney Motorsports Park, again in conjunction with the NSW FCC. Grubel was once again on pole position for the first encounter, but multiple crashes at the race start led to the race being abandoned and later declared a non-event. Grubel was undeterred by that and went on to win the other two races, remaining as the only AFO1 winner of the season. How took both second places, with Gilmour Racing's debutant Jon Collings taking two third places. Janev and his debuting teammate Brodie Norris shared wins in AFO4, while the AFO2 class also took off, with privateer entries Matthew Roesler and Paul di Biase taking the honors.

The first half of the season closed at The Bend Motorsport Park. Grubel continued his pole position streak, but the formbook for the races was rewritten: How became the second race winner in the series as he was the fastest driver throughout all three races to sweep the weekend. Grubel held on to second ahead of Astley in races one and three, but only managed to finish fourth in the second race, with his teammate Miles Bromley third behind Astley. Brodie Norris continued his run of form to sweep the weekend in AFO4 and shorten his gap to Janev. Debutant Christopher Slusarski won all thee races in AFO2, while class leader Di Biase did not finish any of the races.

Queensland Raceway was up next, and How ended Grubel's pole position streak. He dropped to third in the first race though, allowing Grubel to take the win and Chris Gilmour, debuting for the eponymous team, into second. The second race proved even worse for How, as a bad start saw him drop off the podium and allowed Bromley onto it. How was back on top for the feature race though, but Grubel still extended his points lead. AFO2 saw no entries for the round, while AFO4 class leader Janev had an atrocious weekend with a retirement in the first race not allowing him to take part in the rest of the weekend. The chasing Norris took two wins and his teammate Peter Bouzinelous claimed one. [13]

How took a second pole position at the penultimate round at Sandown Raceway. Him and Grubel finished 1-2 in the first two races, with Grubel taking both fastest laps to minimize the damage to his points lead. Their positions were flipped for the final race, but How still reduced Grubel's advantage to 20 points. Bromley took two more podiums to get closer to third place, with TWS Motorsport's Trent Shirvington also appearing on the rostrum. Roesler was the only entrant in the AFO2 class, so he took two more wins to extend his lead, while Norris and Janev continued their tussle in the AFO4 class, with Norris taking two wins to reduce Janev's lead to only three points. [14]

How needed a perfect final weekend at Phillip Island to deny Grubel the title, and did everything he could by winning all three races and taking two bonus points for fastest laps. Grubel could only manage second, third and fourth in the races. Crucially though, he was able to take pole position and claim the fastest lap for the first race. That saw him take the overall and the AFO1 title by three points. Bromley took three podiums to narrowly secure third ahead of Astley. Both AFO2 and AFO4 were decided in absence of the champions, with Roesler taking the AFO2 crown and both Janev and Norris absent from AFO4 competition, allowing Janev to claim the title. [15]

Opening up competition to more classes of formula cars proved to be a huge success, as the series' meetings regularly attracted deep grids. While competition in AFO1 and AFO4 initially seemed to be rather lacklustre, How and Norris were able to close up to the respective leaders Grubel and Janev to provide two close championship battles. With the series planned to be expanding in both round numbers and national and international coverage in 2024, the only question left open is if the championship will really be able to serve as a feeder series to higher-level competition.

Standings

Scoring system

Cars classified as finished in race 1 and 2 were awarded points by the following structure: [16]

Position 1st  2nd  3rd  4th  5th  6th  7th  8th  9th  10th  FL  R1 PP 
Points1298765432111

The third race of the weekend, the longer Feature Race, awarded more points: [16]

Position 1st  2nd  3rd  4th  5th  6th  7th  8th  9th  10th  FL 
Points201512108643211

Overall standings

PosDriver WIN
Flag of Victoria (Australia).svg
SYD
Flag of New South Wales.svg
BEN
Flag of South Australia.svg
QLD
Flag of Queensland.svg
SAN
Flag of Victoria (Australia).svg
PHI
Flag of Victoria (Australia).svg
Pts
R1R2R3R1R2R3R1R2R3R1R2R3R1R2R3R1R2R3
1 Flag of Australia (converted).svg Trent Grubel111C11242112221234225
2 Flag of Australia (converted).svg Ryan How333C22111341112111222
3 Flag of Australia (converted).svg Miles BromleyC754310423533322117
4 Flag of Australia (converted).svg Ryan Astley422C463235RetRet44Ret655112
5 Flag of Australia (converted).svg Winston Van Laarhoven244C5459576477
6 Flag of Australia (converted).svg Beau Russell6DNS444341
7 Flag of Australia (converted).svg Brodie NorrisC8Ret866878757DNSDNSDNS41
8 Flag of Australia (converted).svg Jon CollinsC33655DNSDNSDNS39
9 Flag of Australia (converted).svg Trent ShirvingtonC13Ret65439539
10 Flag of Australia (converted).svg Andrew Roberts555C67RetDNSDNS99737
11 Flag of Australia (converted).svg Kristian Janev667C11101188RetDNSDNS1066DNSDNSDNS33
12 Flag of Australia (converted).svg Chris Gilmour236DNSDNSDNS23
13 Flag of Australia (converted).svg Kyle Evans56617
14 Flag of Australia (converted).svg Ryan McMillan999DNSDNSDNS77817
15 Flag of Australia (converted).svg Thomas Gallagher12Ret108781310914
16 Flag of Australia (converted).svg Lawrence Katsidis886CDNSDNS16Ret1312
17 Flag of Australia (converted).svg Christopher Slusarski7771113Ret12
18 Flag of Australia (converted).svg Douglas Barry141513C98881211
19 Flag of Australia (converted).svg Hanming Huang11108101112111011910915141411
20 Flag of Australia (converted).svg Matthew RoeslerC16Ret9109Ret8109
21 Flag of Australia (converted).svg Graeme Holmes77DNSCDNSDNS8
22 Flag of Australia (converted).svg Peter Bouzinelous1087Ret11RetDNSDNSDNS8
23 Flag of Australia (converted).svg Rodney BakerC1091011105
24 Flag of Australia (converted).svg Mark Wilson10910C19141415Ret4
25 Flag of the United Kingdom.svg Craig McLatchey911DNS2
26 Flag of Australia (converted).svg Rod Anderson12139C18152
27 Flag of Australia (converted).svg Matthew Woodland1212110
28 Flag of Australia (converted).svg Tim Boydle1512110
29 Flag of Australia (converted).svg Greg MuddleRetDNSRetCRet110
30 Flag of Australia (converted).svg Ben TurnerC12120
31 Flag of Australia (converted).svg Nathan Beer161612C20171716150
32 Flag of Australia (converted).svg Paul di BiaseC1716RetRetRet1212110
33 Flag of Australia (converted).svg Shayne Morrow1314RetC15RetRetDNSDNS0
34 Flag of Australia (converted).svg Glenn LynchDNSDNSDNSC14130
Flag of Australia (converted).svg Gerrit RuffCDNSDNSDNSDNSDNS
Flag of Australia (converted).svg Daniel PriceDNSDNSDNS
Flag of Australia (converted).svg Robert RoweDNSDNSDNS
Flag of Australia (converted).svg Arthur Abrahams DNSDNSDNS
Flag of Australia (converted).svg Ron CoathCDNSDNS
Flag of Australia (converted).svg Robert SviderskasCDNSDNS
PosDriverR1R2R3R1R2R3R1R2R3R1R2R3R1R2R3R1R2R3Pts
WIN
Flag of Victoria (Australia).svg
SYD
Flag of New South Wales.svg
BEN
Flag of South Australia.svg
QLD
Flag of Queensland.svg
SAN
Flag of Victoria (Australia).svg
PHI
Flag of Victoria (Australia).svg

Standings by class

PosDriver WIN
Flag of Victoria (Australia).svg
SYD
Flag of New South Wales.svg
BEN
Flag of South Australia.svg
QLD
Flag of Queensland.svg
SAN
Flag of Victoria (Australia).svg
PHI
Flag of Victoria (Australia).svg
Pts
R1R2R3R1R2R3R1R2R3R1R2R3R1R2R3R1R2R3
AFO1 standings
1 Flag of Australia (converted).svg Trent Grubel111C11242112221234225
2 Flag of Australia (converted).svg Ryan How333C22111341112111222
3 Flag of Australia (converted).svg Miles BromleyC75436423533322120
4 Flag of Australia (converted).svg Ryan Astley422C463235RetRet44Ret655107
5 Flag of Australia (converted).svg Winston Van Laarhoven244C5456576480
6 Flag of Australia (converted).svg Trent ShirvingtonC11Ret65435543
7 Flag of Australia (converted).svg Beau Russell6DNS444341
8 Flag of Australia (converted).svg Andrew Roberts555C67RetDNSDNS78740
9 Flag of Australia (converted).svg Jon CollinsC33655DNSDNSDNS39
10 Flag of Australia (converted).svg Chris Gilmour236DNSDNSDNS23
11 Flag of Australia (converted).svg Douglas Barry10108C8867923
12 Flag of Australia (converted).svg Kyle Evans56617
13 Flag of Australia (converted).svg Lawrence Katsidis776CDNSDNS9Ret1017
14 Flag of Australia (converted).svg Rodney BakerC9989812
15 Flag of Australia (converted).svg Graeme Holmes66DNSCDNSDNS10
16 Flag of Australia (converted).svg Rod Anderson887C141310
17 Flag of Australia (converted).svg Shayne Morrow99RetC13RetRetDNSDNS4
18 Flag of Australia (converted).svg Ben TurnerC10111
19 Flag of Australia (converted).svg Greg MuddleRetDNSRetCRet101
20 Flag of Australia (converted).svg Glenn LynchDNSDNSDNSC12120
Flag of Australia (converted).svg Gerrit RuffCDNSDNSDNSDNSDNS
Flag of Australia (converted).svg Daniel PriceDNSDNSDNS
Flag of Australia (converted).svg Robert RoweDNSDNSDNS
Flag of Australia (converted).svg Ron CoathCDNSDNS
AFO2 standings
1 Flag of Australia (converted).svg Matthew RoeslerC1Ret222Ret1183
2 Flag of Australia (converted).svg Christopher Slusarski11112Ret72
3 Flag of Australia (converted).svg Paul di BiaseC21RetRetRet21172
4 Flag of Australia (converted).svg Matthew Woodland33328
Flag of Australia (converted).svg Robert SviderskasCDNSDNS
Flag of Australia (converted).svg Arthur Abrahams DNSDNSDNS
AFO4 standings
1 Flag of Australia (converted).svg Kristian Janev111C21322RetDNSDNS421DNSDNSDNS139
2 Flag of Australia (converted).svg Brodie NorrisC1Ret111112112DNSDNSDNS136
3 Flag of Australia (converted).svg Hanming Huang432233445344433133
4 Flag of Australia (converted).svg Thomas Gallagher5Ret423322280
5 Flag of Australia (converted).svg Ryan McMillan233DNSDNSDNS11177
6 Flag of Australia (converted).svg Mark Wilson323C3234Ret67
7 Flag of Australia (converted).svg Nathan Beer665C4355459
8 Flag of Australia (converted).svg Peter Bouzinelos321Ret5RetDNSDNSDNS44
9 Flag of Australia (converted).svg Tim Boydle55422
10 Flag of the United Kingdom.svg Craig McLatchey24DNS16
Flag of Australia (converted).svg Jayden Ojeda CDNSDNS
PosDriverR1R2R3R1R2R3R1R2R3R1R2R3R1R2R3R1R2R3Pts
WIN
Flag of Victoria (Australia).svg
SYD
Flag of New South Wales.svg
BEN
Flag of South Australia.svg
QLD
Flag of Queensland.svg
SAN
Flag of Victoria (Australia).svg
PHI
Flag of Victoria (Australia).svg

References

  1. "Australian Formula Open Calendar confirmed – The Race Torque" . Retrieved 21 December 2022.
  2. richardrt (18 January 2023). "S5000, Australian Formula Open announce prize package". S5000. Retrieved 19 January 2023.
  3. Herrero, Daniel (23 November 2022). "New 'Formula Open' wings and slicks category to debut". Speedcafe. Retrieved 21 December 2022.
  4. "Australian Formula Open season launches at Winton – The Race Torque" . Retrieved 2 March 2023.
  5. 1 2 3 "NSW Motorsport Australia State Championship". Winton Motor Raceway. Retrieved 21 February 2023.
  6. 1 2 3 "NSW Motor Race Championship 15 April 2023 - 16 April 2023: Acceptance List" (PDF).
  7. 1 2 3 "SAMS featuring Lamborghini Super Trofeo Asia - THE BEND MOTORSPORT PARK - 2023 Australian Formula Open Series - Practice 2". Natsoft Race Results.
  8. 1 2 "Australian Formula Open on facebook: "Times for Practice 2:"".
  9. 1 2 3 "2023 Shannons Speed Series - Round 6 SANDOWN INTERNATIONAL MOTOR RACEWAY - Formula Open - Qualifying".
  10. 1 2 3 "Island Magic 2023". piarc.com.au. Retrieved 24 November 2023.
  11. "New Formula Open category published 2023 calendar - UK Sports News". 20 December 2022. Retrieved 21 December 2022.
  12. "Race 1 has been declared a non-event due to several accidents on the startline and no laps turned under green conditions. Drivers have been assisted and are okay". Australian Formula Open on facebook . Retrieved 15 April 2023.
  13. O'Brien, Garry (6 August 2023). "Formula Open round to Grubel, wins shared in Excels". Speedcafe.com. Retrieved 4 December 2023.
  14. "How closes gap ahead of AFO season finale" . Retrieved 4 December 2023.
  15. "Grubel holds on for AFO title" . Retrieved 4 December 2023.
  16. 1 2 Wood, Ida (11 March 2023). "The story behind Australian racing's slicks-and-wings survival route". Formula Scout. Retrieved 14 March 2023.