| Doubles | |
|---|---|
| 2018 Almaty Challenger 2 | |
| Champions |  Zdeněk Kolář Lukáš Rosol |
| Runners-up |  Evgeny Karlovskiy  Timur Khabibulin |
| Final score | 6–3, 6–1 |
Kevin Krawietz and Andreas Mies were the defending champions but chose not to defend their title.
Zdeněk Kolář and Lukáš Rosol won the title after defeating Evgeny Karlovskiy and Timur Khabibulin 6–3, 6–1 in the final.
Mikhail Elgin / 
Gonçalo Oliveira (first round)
Vladyslav Manafov / 
Andrei Vasilevski (first round)
Tristan-Samuel Weissborn / 
Luca Margaroli (semifinals) Aliaksandr Bury / Yaraslav Shyla (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | M Elgin G Oliveira | 5 | 7 | [4] | |||||||||||||||||||||||
| Z Kolář L Rosol | 7 | 5 | [10] | Z Kolář L Rosol | 6 | 6 | |||||||||||||||||||||
 N Milojević  M Safwat | 64 | 6 | [11] | N Milojević M Safwat | 3 | 2 | |||||||||||||||||||||
 M Bašić D Petrović | 77 | 1 | [9] | Z Kolář L Rosol | 7 | 5 | [10] | ||||||||||||||||||||
| 3 | L Margaroli T-S Weissborn | 6 | 6 | 3 | L Margaroli T-S Weissborn | 5 | 7 | [6] | |||||||||||||||||||
| WC | K Kravchuk G Lomakin | 4 | 2 | 3 | L Margaroli T-S Weissborn | 6 | 6 | ||||||||||||||||||||
U Ignatik  K Majchrzak | 7 | 4 | [8] | WC | A Nedovyesov D Yevseyev | 3 | 4 | ||||||||||||||||||||
| WC | A Nedovyesov D Yevseyev | 5 | 6 | [10] | Z Kolář L Rosol | 6 | 6 | ||||||||||||||||||||
A Pavlioutchenkov  T-h Yang | 6 | 6 | E Karlovskiy T Khabibulin | 3 | 1 | ||||||||||||||||||||||
 Q Halys T Lamasine | 4 | 3 | A Pavlioutchenkov T-h Yang | 77 | 6 | ||||||||||||||||||||||
 E López Pérez  R Statham | 6 | 6 | E López Pérez R Statham | 62 | 4 | ||||||||||||||||||||||
| 4 | A Bury Y Shyla | 3 | 4 | A Pavlioutchenkov T-h Yang | 6 | 3 | [10] | ||||||||||||||||||||
| WC | A Avidzba Antoine Escoffier | 66 | 2 | E Karlovskiy T Khabibulin | 2 | 6 | [12] | ||||||||||||||||||||
| E Karlovskiy T Khabibulin | 78 | 6 | E Karlovskiy T Khabibulin | 5 | 7 | [10] | |||||||||||||||||||||
| A Bublik M Kecmanović | 6 | 6 | A Bublik M Kecmanović | 7 | 5 | [5] | |||||||||||||||||||||
| 2 | V Manafov A Vasilevski | 2 | 4 | ||||||||||||||||||||||||
The 1999 Open Gaz de France singles was the singles event of the seventh edition of the Open GDF Suez; a WTA Tier II tournament held in Paris, France. Mary Pierce was the defending champion but did not compete that year.
Mary Pierce was the defending champion, but lost to Ai Sugiyama in the second round.
Anastasia Myskina was the defending champion, but chose not to participate that year.
Yevgeny Kafelnikov was the defending champion and defended his title with 6–4, 6–4 against Magnus Larsson.
Ellis Ferreira and Patrick Galbraith were the defending champions, but Ferreira did not participate this year. Galbraith partnered Brett Steven, successfully defending his title.
The 1999 Orange Prokom Open singles was the singles event of the second edition of the most prestigious women's tennis tournament held in Poland. Henrieta Nagyová was the defending champion, and the sixth seed this year, but she retired 2–6, 1–4 down against Silvija Talaja.
Jonas Björkman and Max Mirnyi were the defending champions.
Sandrine Testud was the defending champion, but was defeated by Martina Hingis in the semifinals.
The 1999 Wismilak International singles was the singles event of the fifth edition of the most prestigious women's tennis tournament held in Southeast Asia. It was not played the previous year, so there was no defending champion.
The 1999 Wismilak International doubles was the doubles event of the fifth edition of the most prestigious women's tennis tournament held in Southeast Asia. It was not played the previous year, so there was no defending champion.
Jana Novotná was the defending champion, but she retired from tennis earlier in the year.
Bob Bryan and Mike Bryan were the defending champions and successfully defended their title, defeating Vasek Pospisil and Jack Sock in the final, 6–3, 1–6, [10–8].
The mixed doubles of the 2002 Australian Open was held for the 58th time since the first tournament back in 1922. Heading into the tournament, Corina Morariu and Ellis Ferreira were the defending champions, but could not defend their title. While Morariu did not compete this year, Ferreira partnered with Cara Black and lost in the first Round to Rita Grande and Jeff Tarango in three sets.
Mariusz Fyrstenberg and Santiago González were the defending champions and successfully defended the title, defeating Steve Johnson and Sam Querrey, in the final 6–4, 6–4.
Martina Hingis and Jamie Murray were the defending champions, but Hingis retired from professional tennis at the end of 2017. Murray successfully defended his title alongside Bethanie Mattek-Sands, defeating Alicja Rosolska and Nikola Mektić, 2–6, 6–3, [11–9] to win the mixed doubles tennis title at the 2018 US Open
Justine Henin-Hardenne was the defending champion and successfully defended her title, by defeating Svetlana Kuznetsova 7–6(7–3), 6–3 in the final.
Tímea Babos and Andrea Sestini Hlaváčková were the defending champions, but both players chose not to participate. Since Babos was losing her defending championship points, Barbora Krejčíková and Kateřina Siniaková jointly attained the WTA number 1 doubles ranking at the conclusion of the tournament.
Pierre-Hugues Herbert and Nicolas Mahut were the defending champions, but chose not to defend their title.
Svetlana Kuznetsova was the defending champion, however she was unable to defend her title due to visa issues.
Mihaela Buzărnescu and Fanny Stollár were the defending champions, but only Stollár chose to defend her title, partnering Tímea Babos. Stollár lost in the semifinals to Katarzyna Piter and Kimberley Zimmermann.