| Singles | |
|---|---|
| 2016 Lecoq Seoul Open | |
| Champion |  Sergiy Stakhovsky |
| Runner-up |  Lu Yen-hsun |
| Final score | 4–6, 6–3, 7–6(9–7) |
Go Soeda was the defending champion, but chose not to defend his title.
Sergiy Stakhovsky won the title after defeating Lu Yen-hsun 4–6, 6–3, 7–6(9–7) in the final.
John Millman (quarterfinals, withdrew)
Chung Hyeon (withdrew, due to abdominal injury) Sam Groth (quarterfinals, retired)
Daniel Evans (first round) Lu Yen-hsun (final)
Tatsuma Ito (second round) Yūichi Sugita (second round)
Lukáš Lacko (semifinals)
Michael Berrer (second round, retired)| Semifinals | Final | ||||||||||||
| 8 | Lukáš Lacko | 64 | 7 | 3 | |||||||||
| 5 | Lu Yen-hsun | 77 | 5 | 6 | |||||||||
| 5 | Lu Yen-hsun | 6 | 3 | 67 | |||||||||
| Sergiy Stakhovsky | 4 | 6 | 79 | ||||||||||
 Alexander Kudryavtsev | 2 | 4 | |||||||||||
| Sergiy Stakhovsky | 6 | 6 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | J Millman | 7 | 6 | ||||||||||||||||||||||||
| LL | Shuichi Sekiguchi | 5 | 4 | 1 | J Millman | 6 | 6 | ||||||||||||||||||||
| Q |  F Nielsen | 77 | 3 | 64 | Q | A Ward | 4 | 2 | |||||||||||||||||||
| Q | A Ward | 65 | 6 | 77 | 1 | J Millman | |||||||||||||||||||||
| K Kravchuk | 3 | 6 | 3 | 8 | L Lacko | w/o | |||||||||||||||||||||
| M Barton | 6 | 3 | 6 | M Barton | 4 | 6 | 4 | ||||||||||||||||||||
| T Chen | 3 | 3 | 8 | L Lacko | 6 | 4 | 6 | ||||||||||||||||||||
| 8 | L Lacko | 6 | 6 | 8 | L Lacko | 64 | 7 | 3 | |||||||||||||||||||
| 4 | D Evans | 3 | 3 | 5 | Y-h Lu | 77 | 5 | 6 | |||||||||||||||||||
 G Žemlja | 6 | 6 | G Žemlja | 2 | 6 | 5 | |||||||||||||||||||||
 A Sarkissian | 3 | 2 | J Jung | 6 | 4 | 7 | |||||||||||||||||||||
| J Jung | 6 | 6 | J Jung | 4 | 4 | ||||||||||||||||||||||
| Q | Yuya Kibi | 3 | 2 | 5 | Y-h Lu | 6 | 6 | ||||||||||||||||||||
 Z Zhang | 6 | 6 | Z Zhang | 3 | 4 | ||||||||||||||||||||||
| D Wu | 6 | 2 | 4 | 5 | Y-h Lu | 6 | 6 | ||||||||||||||||||||
| 5 | Y-h Lu | 4 | 6 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | T Ito | 6 | 6 | ||||||||||||||||||||||||
| WC | S-c Hong | 4 | 2 | 6 | T Ito | 66 | 5 | ||||||||||||||||||||
| A Kudryavtsev | 6 | 6 | A Kudryavtsev | 78 | 7 | ||||||||||||||||||||||
| WC | J-s Nam | 4 | 4 | A Kudryavtsev | 4 | ||||||||||||||||||||||
| Q | L Broady | 6 | 4 | 3 | 3 | S Groth | 1r | ||||||||||||||||||||
| WC | S-w Kwon | 3 | 6 | 6 | WC | S-w Kwon | 4 | 6 | 4 | ||||||||||||||||||
| M Krueger | 6 | 3 | 2 | 3 | S Groth | 6 | 4 | 6 | |||||||||||||||||||
| 3 | S Groth | 4 | 6 | 6 | A Kudryavtsev | 2 | 4 | ||||||||||||||||||||
| 7 | Y Sugita | 6 | 6 | S Stakhovsky | 6 | 6 | |||||||||||||||||||||
| WC | Kang Ho-gi | 1 | 1 | 7 | Y Sugita | 5 | 7 | 4 | |||||||||||||||||||
| D-h Lee | 6 | 6 | D-h Lee | 7 | 5 | 6 | |||||||||||||||||||||
| J-P Smith | 4 | 4 | D-h Lee | 5 | 2 | ||||||||||||||||||||||
 M Chiudinelli | 4 | 4 | S Stakhovsky | 7 | 6 | ||||||||||||||||||||||
| S Stakhovsky | 6 | 6 | S Stakhovsky | 6 | 1 | ||||||||||||||||||||||
| A Krajicek | 4 | 77 | 5 | 9 | M Berrer | 0 | 0r | ||||||||||||||||||||
| 9 | M Berrer | 6 | 63 | 7 | |||||||||||||||||||||||
Roger Federer defeated Novak Djokovic in the final, 6–1, 7–5, to win the men's singles title at the 2009 Cincinnati Masters.
Ivan Ljubičić defeated Andy Roddick in the final 7–6(7–3), 7–6(7–5), to win the men's singles title at the 2010 Indian Wells Masters. It was his first ATP Masters 1000 title, making him the oldest first-time champion of a Masters title. Until the 2014 Australian Open, this was the last occasion where a player other than the Big Four won a title when the Big Four were all competing.
Ivo Minář chose to not defend his 2008 title.
Lu Yen-hsun defeated Igor Sijsling 6–2, 6–3 in the final match.
Dudi Sela was the defending champion, but decided not to participate.
Roger Federer defeated Novak Djokovic in the final, 6–0, 7–6 (9–7), to win the men's singles title at the 2012 Cincinnati Masters. It was his record fifth title at the Cincinnati Masters, and the first occasion that a player won an ATP Masters 1000 event without having serve broken or losing a set. Federer would repeat this accomplishment at the 2015 event. It was Djokovic's fourth runner-up finish at the Cincinnati Masters.
Lu Yen-hsun was the defending champion.
Peter Gojowczyk won the title, defeating Suk-Young Jeong 6–3, 6–1 in the final.
Lu Yen-hsun successfully defended his title by defeating Yūichi Sugita 6–3, 7–6(7–4) in the final.
Denis Zivkovic was the defending champion, but lost in the second round to John Millman.
Donald Young defeated Jimmy Wang 6–2, 6–2 in the final to win the title.
Defending champion Novak Djokovic successfully defended his title, defeating Rafael Nadal in the final, 6–3, 6–4.
Novak Djokovic was the defending champion and successfully defended his title by defeating Juan Martín del Potro in the final, 6–1, 3–6, 7–6(7–3).
Lu Yen-hsun was the three-time defending champion, but lost to Germain Gigounon in the first round.
Dušan Lajović won the title when Julian Reister withdrew with an illness.
Lu Yen-hsun was the defending champion, and defended his title defeating Luca Vanni 6–7(7–9), 6–4, 6–4 in the final.
Defending champion Roger Federer successfully defended his title, defeating Novak Djokovic in the final, 7–6(7–1), 6–3, to win the men's singles title at the 2015 Cincinnati Masters. He won the title without losing a set or having his serve broken, the second time he did so in Cincinnati, following his win in 2012. It marked the first time Federer defeated the world No. 1 and No. 2 players in consecutive matches en route to a title. It was Djokovic's fifth runners-up finish without winning the title.
Sam Groth was the defending champion, but lost in the quarterfinals to Denis Kudla.
Matthew Ebden was the defending champion, but chose not to defend his title.
Lu Yen-hsun was the defending champion and successfully defended his title.
Dan Evans was the defending champion but chose not to defend his title.
Henri Laaksonen was the defending champion but chose not to defend his title.
Lu Yen-hsun was the defending champion but withdrew before the tournament began.
Thomas Fabbiano was the defending champion but chose not to defend his title.