| Singles | |
|---|---|
| 2018 Moselle Open | |
| Champion |  Gilles Simon |
| Runner-up |  Matthias Bachinger |
| Final score | 7–6(7–2), 6–1 |
| Draw | 28 (4 Q / 3 WC ) |
| Seeds | 8 |
Peter Gojowczyk was the defending champion, but lost to Kei Nishikori in the second round.
Gilles Simon won the title, defeating Matthias Bachinger in the final, 7–6(7–2), 6–1.
The top four seeds receive a bye into the second round.
Kei Nishikori (semifinals)
Stefanos Tsitsipas (second round) Lucas Pouille (withdrew) Richard Gasquet (quarterfinals)
Nikoloz Basilashvili (quarterfinals) Adrian Mannarino (first round)
Filip Krajinović (second round) Philipp Kohlschreiber (withdrew)| Semifinals | Final | ||||||||||||
| 1 | Kei Nishikori | 6 | 4 | 5 | |||||||||
| Q | Matthias Bachinger | 2 | 6 | 7 | |||||||||
| Q | Matthias Bachinger | 62 | 1 | ||||||||||
| Gilles Simon | 77 | 6 | |||||||||||
| Gilles Simon | 6 | 6 | |||||||||||
 Radu Albot | 3 | 1 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | K Nishikori | 77 | 6 | ||||||||||||||||||||||||
| P Gojowczyk | 65 | 6 | 6 | P Gojowczyk | 64 | 3 | |||||||||||||||||||||
| J-W Tsonga | 77 | 3 | 4 | 1 | K Nishikori | 6 | 4 | 6 | |||||||||||||||||||
| Q |  B Tomic | 77 | 3 | 4 | 5 | N Basilashvili | 3 | 6 | 4 | ||||||||||||||||||
| WC | U Humbert | 65 | 6 | 6 | WC | U Humbert | 77 | 64 | 3 | ||||||||||||||||||
| Q | K de Schepper | 2 | 60 | 5 | N Basilashvili | 62 | 77 | 6 | |||||||||||||||||||
| 5 | N Basilashvili | 6 | 77 | 1 | K Nishikori | 6 | 4 | 5 | |||||||||||||||||||
| Q | M Bachinger | 2 | 6 | 7 | |||||||||||||||||||||||
| LL | G Barrère | 0 | 3 | ||||||||||||||||||||||||
 J Munar | 4 | 4 | Q | M Bachinger | 6 | 6 | |||||||||||||||||||||
| Q | M Bachinger | 6 | 6 | Q | M Bachinger | 6 | 2 | 6 | |||||||||||||||||||
| WC | Q Halys | 64 | 2 | LL | Y Maden | 3 | 6 | 4 | |||||||||||||||||||
| B Paire | 77 | 6 | B Paire | 4 | 6 | 3 | |||||||||||||||||||||
| M Zverev | 5 | 6 | 1 | LL | Y Maden | 6 | 3 | 6 | |||||||||||||||||||
| LL | Y Maden | 7 | 4 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | F Krajinović | 6 | 6 | ||||||||||||||||||||||||
| WC | C Moutet | 1 | 1 | 7 | F Krajinović | 6 | 5 | 5 | |||||||||||||||||||
| G Simon | 7 | 6 | G Simon | 4 | 7 | 7 | |||||||||||||||||||||
 J Veselý | 5 | 3 | G Simon | 77 | 6 | ||||||||||||||||||||||
| Q | C Lestienne | 6 | 7 | 4 | R Gasquet | 64 | 2 | ||||||||||||||||||||
 J Zopp | 3 | 5 | Q | C Lestienne | 4 | 2 | |||||||||||||||||||||
| 4 | R Gasquet | 6 | 6 | ||||||||||||||||||||||||
| G Simon | 6 | 6 | |||||||||||||||||||||||||
| 6 | A Mannarino | 3 | 2 | R Albot | 3 | 1 | |||||||||||||||||||||
 M Fucsovics | 6 | 6 | M Fucsovics | 3 | 2 | ||||||||||||||||||||||
| R Albot | 6 | 6 | R Albot | 6 | 6 | ||||||||||||||||||||||
| P-H Herbert | 3 | 4 | R Albot | 77 | 6 | ||||||||||||||||||||||
| M Marterer | 61 | 77 | 4 |  R Berankis | 64 | 4 | |||||||||||||||||||||
| R Berankis | 77 | 61 | 6 | R Berankis | 65 | 78 | 6 | ||||||||||||||||||||
| 2 | S Tsitsipas | 77 | 66 | 3 | |||||||||||||||||||||||
Yannick Maden (qualifying competition, lucky loser) Bernard Tomic (first round)
Sergiy Stakhovsky (first round) Grégoire Barrère (qualifying competition, lucky loser) Matthias Bachinger (qualified) Mats Moraing (qualifying competition) Constant Lestienne (qualified) Kenny de Schepper (first round)| First round | Qualifying competition | ||||||||||||
| 1 | Yannick Maden | 77 | 6 | ||||||||||
| Oscar Otte | 61 | 3 | |||||||||||
| 1 | Yannick Maden | 66 | 3 | ||||||||||
| 5 | Matthias Bachinger | 78 | 6 | ||||||||||
 Norbert Gombos | 63 | 77 | 3 | ||||||||||
| 5 | Matthias Bachinger | 77 | 60 | 6 | |||||||||
| First round | Qualifying competition | ||||||||||||
| 2 | Bernard Tomic | 7 | 7 | ||||||||||
 Ante Pavić | 5 | 5 | |||||||||||
| 2 | Bernard Tomic | 78 | 3 | 6 | |||||||||
| 6 | Mats Moraing | 66 | 6 | 3 | |||||||||
| Tobias Kamke | 63 | 2 | |||||||||||
| 6 | Mats Moraing | 77 | 6 | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 3 | Sergiy Stakhovsky | 3 | 4 | ||||||||||
| Alt | Maxime Janvier | 6 | 6 | ||||||||||
| Alt | Maxime Janvier | 4 | 4 | ||||||||||
| 7 | Constant Lestienne | 6 | 6 | ||||||||||
| WC | Boris Fassbender | 2 | 1 | ||||||||||
| 7 | Constant Lestienne | 6 | 6 | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 4 | Grégoire Barrère | 6 | 77 | ||||||||||
| WC | Arthur Rinderknech | 3 | 64 | ||||||||||
| 4 | Grégoire Barrère | 64 | 77 | 63 | |||||||||
| 8 | Kenny de Schepper | 77 | 65 | 77 | |||||||||
| Dustin Brown | 4 | 4 | |||||||||||
| 8 | Kenny de Schepper | 6 | 6 | ||||||||||
Novak Djokovic was the defending champion, but lost in the fourth round to Tommy Haas. This championship was the first since the tournament's inception that no American was featured in the quarterfinals, with the last player from the US, Sam Querrey, beaten in the fourth round by Tomáš Berdych. This meant that it was also the first all-European final eight at the Miami Masters.
Two-time defending champion Rafael Nadal successfully defended his title, defeating Nicolás Almagro in the final, 6–4, 6–3. It was his record-extending eighth Barcelona Open title.
Gilles Simon was the defending champion, but withdrew with a right wrist injury before the tournament began.
Defending champion Novak Djokovic successfully defended his title, defeating Milos Raonic in the final, 6–2, 6–3, to win the singles title at the 2014 Paris Masters. He became the first man to defend the title at the Paris Masters, and it was his record-equaling third title at the event.
Defending champion Kei Nishikori successfully defended his title, defeating Pablo Andújar in the final, 6–4, 6–4, to win the singles title at the 2015 Barcelona Open.
Richard Gasquet won the title, defeating Nick Kyrgios in the final, 6–3, 6–2.
David Goffin was the defending champion but chose not to participate this year.
Rafael Nadal defeated the two-time defending champion Kei Nishikori in the final, 6–4, 7–5 to win the singles title at the 2016 Barcelona Open. It was Nadal's record-extending ninth title at the Barcelona Open and his 49th clay court title, equaling Guillermo Vilas' record for the most titles on clay.
Jo-Wilfried Tsonga was the defending champion, but withdrew with a left knee injury before the tournament began.
Lucas Pouille was the defending champion, but lost in the second round to Marius Copil.
Alexander Zverev was the defending champion, but chose not to participate this year.
This was the first edition of the tournament.
The 2018 Moselle Open was a men's tennis tournament held in Metz, France and played on indoor hard courts. It was the 16th edition of the Moselle Open, and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It was held at the Arènes de Metz from 17 to 23 September 2018. Unseeded Gilles Simon won the singles title.
Lorenzo Sonego was the defending champion but lost in the first round to Constant Lestienne.
Quentin Halys was the defending champion but lost in the second round to Dan Evans.
Karen Khachanov was the defending champion, but withdrew before the tournament began.
Dominic Thiem defeated Roger Federer in the final, 3–6, 6–3, 7–5, to win the men's singles title at the 2019 Indian Wells Masters. It was his first ATP Tour Masters 1000 title. Thiem became the first Austrian to win a Masters 1000-level title since Thomas Muster won the 1997 Miami Open.
Grégoire Barrère was the defending champion and successfully defended his title.
Marco Cecchinato was the defending champion, but withdrew due to illness.
Gilles Simon was the defending champion, but lost in the second round to Aljaž Bedene.