| Singles | |
|---|---|
| 2018 Meerbusch Challenger | |
| Champion |  Filip Horanský |
| Runner-up |  Jan Choinski |
| Final score | 6–7(7–9), 6–3, 6–3 |
Ricardo Ojeda Lara was the defending champion but chose not to defend his title.
Filip Horanský won the title after defeating Jan Choinski 6–7(7–9), 6–3, 6–3 in the final.
Sergio Gutiérrez Ferrol (first round)
Pedro Sousa (quarterfinals)
Alexey Vatutin (withdrew)
Sebastian Ofner (first round) Ivan Nedelko (first round) Filip Horanský (champion)
Arthur De Greef (first round) Rudolf Molleker (semifinals)| Semifinals | Final | ||||||||||||
| Jan Choinski | 6 | 6 | |||||||||||
| Dustin Brown | 4 | 3 | |||||||||||
| Jan Choinski | 79 | 3 | 3 | ||||||||||
| 6 | Filip Horanský | 67 | 6 | 6 | |||||||||
| 6 | Filip Horanský | 77 | 6 | ||||||||||
| 8 | Rudolf Molleker | 64 | 2 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | S Gutiérrez Ferrol | 6 | 3 | 3 | |||||||||||||||||||||||
| Q | Z Bergs | 1 | 6 | 6 | Q | Z Bergs | 3 | 4 | |||||||||||||||||||
| WC | A Haider-Maurer | 1 | 4 | J Choinski | 6 | 6 | |||||||||||||||||||||
| J Choinski | 6 | 6 | J Choinski | 5 | 6 | 6 | |||||||||||||||||||||
 E Benchetrit | 6 | 6 | B Zapata Miralles | 7 | 2 | 1 | |||||||||||||||||||||
| PR |  R Bellotti | 2 | 1 | E Benchetrit | 5 | 0 | |||||||||||||||||||||
| B Zapata Miralles | 6 | 6 | B Zapata Miralles | 7 | 6 | ||||||||||||||||||||||
| 7 | A De Greef | 4 | 2 | J Choinski | 6 | 6 | |||||||||||||||||||||
| 4 | S Ofner | 4 | 6 | 65 | D Brown | 4 | 3 | ||||||||||||||||||||
| D Brown | 6 | 3 | 77 | D Brown | 6 | 6 | |||||||||||||||||||||
| LL | A Müller | 6 | 3 | 77 | LL | A Müller | 1 | 2 | |||||||||||||||||||
 M Cuevas | 3 | 6 | 65 | D Brown | 65 | 6 | 6 | ||||||||||||||||||||
 R Olivo | 6 | 4 | 4 | SE | K Krawietz | 77 | 1 | 2 | |||||||||||||||||||
| WC | B Hassan | 0 | 6 | 6 | WC | B Hassan | 2 | 77 | 5 | ||||||||||||||||||
| SE | K Krawietz | 6 | 4 | 77 | SE | K Krawietz | 6 | 65 | 7 | ||||||||||||||||||
| 5 | I Nedelko | 2 | 6 | 63 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | F Horanský | 6 | 6 | ||||||||||||||||||||||||
| J Rodionov | 4 | 1 | 6 | F Horanský | 3 | 6 | 6 | ||||||||||||||||||||
| F Baldi | 1 | 69 | M Vilella Martínez | 6 | 3 | 1 | |||||||||||||||||||||
| M Vilella Martínez | 6 | 711 | 6 | F Horanský | 6 | 1 | 6 | ||||||||||||||||||||
| G Sakharov | 3 | 0 | Q | N Kuhn | 4 | 6 | 1 | ||||||||||||||||||||
 D Kuzmanov | 6 | 6 | D Kuzmanov | 4 | 4 | ||||||||||||||||||||||
| M Janvier | 1 | 3 | Q | N Kuhn | 6 | 6 | |||||||||||||||||||||
| Q | N Kuhn | 6 | 6 | 6 | F Horanský | 77 | 6 | ||||||||||||||||||||
| 8 | R Molleker | 6 | 6 | 8 | R Molleker | 64 | 2 | ||||||||||||||||||||
| WC |  O Štyler | 3 | 4 | 8 | R Molleker | 7 | 6 | ||||||||||||||||||||
| Q | Marc Sieber | 65 | 6 | 4 | J Tatlot | 5 | 1 | ||||||||||||||||||||
| J Tatlot | 77 | 4 | 6 | 8 | R Molleker | 6 | 6 | ||||||||||||||||||||
| Q |  J Sels | 6 | 7 | 2 | P Sousa | 3 | 2 | ||||||||||||||||||||
| Carlos Boluda-Purkiss | 3 | 5 | Q | J Sels | 3 | 1 | |||||||||||||||||||||
| WC | L Wessels | 0 | 1 | 2 | P Sousa | 6 | 6 | ||||||||||||||||||||
| 2 | P Sousa | 6 | 6 | ||||||||||||||||||||||||
Tiago Fernandes was the defending champion, having defeated Sean Berman in the 2010 final. He chose not to defend his title.
Jiří Veselý won the title defeating Luke Saville 6–0, 6–3, in the final. The player from Czech Republic won every match in straight sets.
Dutch players Justin Eleveld and Jannick Lupescu chose to not defend their 2010 title, when they defeated Kevin Krawietz and Dominik Schulz in the final.
Filip Horanský and Jiří Veselý won this year's title, by defeating Ben Wagland and Andrew Whittington 6–4, 6–4 in the final match.
Pierre-Hugues Herbert and Kevin Krawietz were the defending champions. However, Herbert was no longer eligible to compete as a Junior. Krawietz competed with Peter Heller and lost in the semifinals to Lewis Burton and George Morgan.
Liam Broady and Tom Farquharson were the defending champions but Farquharson was no longer eligible to compete as a Junior. Broady competed with Filip Horanský and lost in the semifinals to George Morgan and Mate Pavić.
Jack Sock was the defending champion, but participated in the men's main draw, as he was ineligible to defend his title.
Duilio Beretta and Oliver Golding were the defending champions but did not enter this year.
Filip Horanský and Jiří Veselý were the defending champions but were both ineligible to compete.
Jo-Wilfried Tsonga was the defending champion, but due to injury did not defend his title.
Yūichi Sugita was the defending champion but lost in the second round to Pierre-Hugues Herbert.
Damir Džumhur was the defending champion, but lost to Egor Gerasimov in the first round.
Fabio Fognini was the defending champion, but he chose to compete in Umag instead.
Filip Horanský was the defending champion but chose not to defend his title.
Karen Khachanov was the defending champion, but lost in the quarterfinals to Andreas Seppi.
Juan Ignacio Londero was the defending champion, but lost to Laslo Đere in the quarterfinals.
Fabio Fognini was the champion in 2014, when the event was last held, but chose to compete in Dubai instead.
Francisco Cerúndolo was the defending champion but chose not to defend his title.
Norbert Gombos was the defending champion but lost in the second round to Filip Horanský.
Dušan Lajović was the reigning champion from when the tournament was last held in 2019, but lost to Daniel Altmaier in the quarterfinals.
Roberto Carballés Baena was the defending champion but lost in the final to Tallon Griekspoor.
Marc Polmans was the defending champion but chose not to participate.