 | This article provides insufficient context for those unfamiliar with the subject.(December 2015) |
| Singles | |
|---|---|
| 2014 AON Open Challenger | |
| Champion |  Albert Ramos |
| Runner-up |  Mate Delić |
| Final score | 6–1, 7–5 |
Albert Ramos won the tournament, beating Mate Delić 6–1, 7–5 in the final.
Albert Ramos (champion)
Dustin Brown (first round)
Benoît Paire (second round) Albert Montañés (first round) Andreas Beck (semifinals)
Damir Džumhur (second round)
Aljaž Bedene (quarterfinals)
Gastão Elias (first round)| Semifinals | Final | ||||||||||||
| 1 | Albert Ramos | 6 | 7 | ||||||||||
 Márton Fucsovics | 1 | 5 | |||||||||||
| 1 | Albert Ramos | 6 | 7 | ||||||||||
| Alt | Mate Delić | 1 | 5 | ||||||||||
| 5 | Andreas Beck | 4 | 5 | ||||||||||
| Alt | Mate Delić | 6 | 7 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Ramos | 7 | 5 | 6 | |||||||||||||||||||||||
| Q |  A Virgili | 5 | 7 | 3 | 1 | A Ramos | 6 | 6 | |||||||||||||||||||
| A Šetkić | 6 | 77 | A Šetkić | 1 | 3 | ||||||||||||||||||||||
| WC | Francesco Picco | 3 | 63 | 1 | A Ramos | 6 | 6 | ||||||||||||||||||||
 J Hájek | 7 | 6 | 7 | A Bedene | 3 | 2 | |||||||||||||||||||||
| WC | G Mager | 5 | 4 | J Hájek | 4 | 4 | |||||||||||||||||||||
| A Arnaboldi | 6 | 3 | 63 | 7 | A Bedene | 6 | 6 | ||||||||||||||||||||
| 7 | A Bedene | 3 | 6 | 77 | 1 | A Ramos | 6 | 7 | |||||||||||||||||||
| 4 | A Montañés | 2 | 4 | M Fucsovics | 1 | 5 | |||||||||||||||||||||
| M Fucsovics | 6 | 6 | M Fucsovics | 3 | 6 | 6 | |||||||||||||||||||||
| WC | A Giannessi | 5 | 2 |  G Andreozzi | 6 | 3 | 4 | ||||||||||||||||||||
| G Andreozzi | 7 | 6 | M Fucsovics | 79 | 1 | 77 | |||||||||||||||||||||
| Alt |  U Ignatik | 6 | 6 |  J Kubler | 67 | 6 | 63 | ||||||||||||||||||||
| F Volandri | 3 | 4 | Alt | U Ignatik | 6 | 2 | 3 | ||||||||||||||||||||
| J Kubler | 6 | 6 | J Kubler | 2 | 6 | 6 | |||||||||||||||||||||
| 8 | G Elias | 4 | 4 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | A Beck | 6 | 6 | ||||||||||||||||||||||||
| F Gaio | 2 | 4 | 5 | A Beck | 6 | 6 | |||||||||||||||||||||
| P Starace | 4 | 1 |  C Lindell | 4 | 3 | ||||||||||||||||||||||
| C Lindell | 6 | 6 | 5 | A Beck | 7 | 6 | |||||||||||||||||||||
| M Cecchinato | 6 | 6 | M Cecchinato | 5 | 3 | ||||||||||||||||||||||
 N Basilashvili | 4 | 2 | M Cecchinato | 6 | 77 | ||||||||||||||||||||||
| P Sousa | 0 | 2 | 3 | B Paire | 2 | 63 | |||||||||||||||||||||
| 3 | B Paire | 6 | 6 | 5 | A Beck | 4 | 5 | ||||||||||||||||||||
| 6 | D Džumhur | 6 | 6 | Alt | M Delić | 6 | 7 | ||||||||||||||||||||
| Q |  J Kovalík | 4 | 4 | 6 | D Džumhur | 4 | 6 | 4 | |||||||||||||||||||
| Q | V Galović | 6 | 3 | 1 | Alt | M Delić | 6 | 2 | 6 | ||||||||||||||||||
| Alt | M Delić | 4 | 6 | 6 | Alt | M Delić | 78 | 1 | 710 | ||||||||||||||||||
| WC | M Trevisan | 64 | 6 | 6 | SE |  V Troicki | 66 | 6 | 68 | ||||||||||||||||||
| Q | G Naso | 77 | 4 | 4 | WC | M Trevisan | 6 | 3 | 64 | ||||||||||||||||||
| SE | V Troicki | 6 | 77 | SE | V Troicki | 4 | 6 | 77 | |||||||||||||||||||
| 2 | D Brown | 1 | 64 | ||||||||||||||||||||||||
Albert Montañés was the defending champion, but was defeated 1–6, 3–6 by Juan Ignacio Chela in the semifinals.
Chela went on to win the tournament, defeating qualifier Pablo Andújar 7–5, 6–1 in the final.
Andy Murray was the defending champion and successfully defended his title by beating David Ferrer 7–5, 6–4 in the final.
Pablo Andújar successfully defended his title, beating Albert Ramos 6–1, 7–6(7–5) in an all-Spanish final.
Rafael Nadal defeated the defending champion Novak Djokovic in the final, 7–5, 6–3, to win the men's singles title at the 2012 Italian Open. It was his record-extending sixth Italian Open title.
Novak Djokovic defeated the eight-time defending champion Rafael Nadal in the final, 6–2, 7–6(7–1) to win the singles title at the 2013 Monte-Carlo Masters. With the win, Djokovic ended Nadal's 46-match winning streak at the event, the longest win streak at a single tournament in tennis history. Additionally, Djokovic became the first man to win singles titles at 8 of the 9 Masters 1000 tournaments.
Bernard Tomic was the defending champion, but lost in the final to Juan Martín del Potro, 3–6, 1–6.
Tommy Haas was the defending champion but lost to Martin Kližan in the semifinals.
Kližan went on to win the title, defeating Fabio Fognini in the final, 2–6, 6–1, 6–2.
Carlos Berlocq was the defending champion, but lost to João Sousa in the semifinals.
Pablo Cuevas won his first ATP World Tour title, defeating Sousa in the final, 6–2, 6–1.
Marcel Granollers was the defending champion, but lost in the quarterfinals to Dominic Thiem.
David Goffin won the title, defeating Thiem in the final, 4–6, 6–1, 6–3.
Mikhail Youzhny was the defending champion but lost to Thomaz Bellucci in the first round.
Andy Murray defeated the two-time defending champion Rafael Nadal in the final, 6–3, 6–2, to win the men's singles title at the 2015 Madrid Open.
David Goffin was the defending champion, but withdrew before the tournament began.
Roger Federer was the defending champion, but lost in the second round to Albert Ramos-Viñolas.
Novak Djokovic won the title, defeating Jo-Wilfried Tsonga in the final, 6–2, 6–4.
Benoît Paire was the defending champion, but chose to compete in Hamburg instead.
This was the first edition of the tournament. Karen Khachanov won his first ATP World Tour title, defeating Albert Ramos-Viñolas in the final, 6−7(4−7), 7−6(7−3), 6−3.
Pablo Cuevas was the two-time defending champion and successfully defended his title, defeating Albert Ramos Viñolas in the final, 6–7(3–7), 6–4, 6–4.
Albert Ramos Viñolas was the defending champion, but lost in the quarterfinals to Fernando Verdasco.
Víctor Estrella Burgos was the three-time defending champion and the tournament's only champion to date, but lost in the second round to Gerald Melzer.
Cristian Garín was the defending champion, but chose not to defend his title.
Stefanos Tsitsipas was the reigning champion from when the tournament was last held in 2019, but he decided not to participate this year.