| Singles | |
|---|---|
| 2016 Franken Challenge | |
| Champion |  Radu Albot |
| Runner-up |  Jan-Lennard Struff |
| Final score | 6–3, 6–4 |
Taro Daniel was the defending champion but failed to defend his title, losing to Thiago Monteiro in the second round.
Radu Albot won the title after defeating Jan-Lennard Struff 6–3, 6–4 in the final.
Malek Jaziri (second round, retired)
Taro Daniel (second round)
Albert Montañés (quarterfinals) Jan-Lennard Struff (final) Roberto Carballés Baena (first round)
Thomas Fabbiano (first round)
Thiemo de Bakker (first round)
Jozef Kovalík (quarterfinals)| Semifinals | Final | ||||||||||||
 Máximo González | 77 | 66 | 3 | ||||||||||
| 4 | Jan-Lennard Struff | 63 | 78 | 6 | |||||||||
| 4 | Jan-Lennard Struff | 3 | 4 | ||||||||||
| Radu Albot | 6 | 6 | |||||||||||
| Radu Albot | 6 | 6 | |||||||||||
| Tobias Kamke | 1 | 4 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | M Jaziri | 77 | 77 | ||||||||||||||||||||||||
| D Gimeno-Traver | 65 | 65 | 1 | M Jaziri | 2 | 1r | |||||||||||||||||||||
| Q |  B Rola | 4 | 6 | 62 |  G Melzer | 6 | 4 | ||||||||||||||||||||
| G Melzer | 6 | 1 | 77 | G Melzer | 3 | 5 | |||||||||||||||||||||
| WC | Paul Wörner | 3 | 3 | M González | 6 | 7 | |||||||||||||||||||||
| L Vanni | 6 | 6 | L Vanni | 2 | 4 | ||||||||||||||||||||||
| M González | 77 | 6 | M González | 6 | 6 | ||||||||||||||||||||||
| 5 | R Carballés Baena | 60 | 1 | M González | 77 | 66 | 3 | ||||||||||||||||||||
| 4 | J-L Struff | 6 | 6 | 4 | J-L Struff | 63 | 78 | 6 | |||||||||||||||||||
| F Argüello | 3 | 4 | 4 | J-L Struff | 65 | 7 | 6 | ||||||||||||||||||||
| WC | M Marterer | 3 | 3 |  A Nedovyesov | 77 | 5 | 3 | ||||||||||||||||||||
| A Nedovyesov | 6 | 6 | 4 | J-L Struff | 3 | 6 | 6 | ||||||||||||||||||||
| A Arnaboldi | 6 | 3 | 6 | 8 | J Kovalík | 6 | 2 | 3 | |||||||||||||||||||
| A Martin | 2 | 6 | 0 | A Arnaboldi | 3 | 4 | |||||||||||||||||||||
| Q |  A De Greef | 77 | 65 | 4 | 8 | J Kovalík | 6 | 6 | |||||||||||||||||||
| 8 | J Kovalík | 63 | 77 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | T de Bakker | 3 | 2 | ||||||||||||||||||||||||
| R Albot | 6 | 6 | R Albot | 6 | 6 | ||||||||||||||||||||||
| WC | M Bachinger | 3 | 0 |  G Clezar | 2 | 2 | |||||||||||||||||||||
| G Clezar | 6 | 6 | R Albot | 77 | 6 | ||||||||||||||||||||||
| Q | C Zampieri | 62 | 4 | 3 | A Montañés | 65 | 2 | ||||||||||||||||||||
| PR | J Reister | 77 | 6 | PR | J Reister | 3 | 3 | ||||||||||||||||||||
| WC | D Masur | 5 | 3 | 3 | A Montañés | 6 | 6 | ||||||||||||||||||||
| 3 | A Montañés | 7 | 6 | R Albot | 6 | 6 | |||||||||||||||||||||
| 6 | T Fabbiano | 63 | 1 | T Kamke | 1 | 4 | |||||||||||||||||||||
| T Kamke | 77 | 6 | T Kamke | 1 | 6 | 6 | |||||||||||||||||||||
| Alt |  H Laaksonen | 4 | 712 | 3 | Q | L Sonego | 6 | 4 | 2 | ||||||||||||||||||
| Q | L Sonego | 6 | 610 | 6 | T Kamke | 77 | 6 | ||||||||||||||||||||
| R Bemelmans | 66 | 63 | T Monteiro | 63 | 3 | ||||||||||||||||||||||
| T Monteiro | 78 | 77 | T Monteiro | 77 | 6 | ||||||||||||||||||||||
| LL | D Novak | 4 | 4 | 2 | T Daniel | 61 | 4 | ||||||||||||||||||||
| 2 | T Daniel | 6 | 6 | ||||||||||||||||||||||||
Jérémy Chardy was the defending champion but chose not to compete.
Daniel Gimeno-Traver won the title after defeating Jan-Lennard Struff 6–4, 6–2 in the final.
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.
Marc Gicquel was the defending champion but chose to compete at the 2013 BNP Paribas Masters.
Aleksandr Nedovyesov was the defending champion, but lost in the quarterfinals to Błażej Koniusz.
Gaël Monfils was the defending champion, but lost to Richard Gasquet in the semifinals.
Gasquet went on to win the title, defeating Jerzy Janowicz in the final, 3–0, ret.
Novak Djokovic defeated Tomáš Berdych in the final, 7–5, 4–6, 6–3, to win the singles title at the 2015 Monte-Carlo Masters. It was his second Monte-Carlo Masters title, and he became the first man to win the first three ATP Tour Masters 1000 titles of the season.
Leonardo Mayer was the defending champion, but chose not to participate this year.
David Goffin was the defending champion, but withdrew before the tournament began.
Andy Murray was the defending champion, but chose not to participate.
David Ferrer won the title, defeating Steve Johnson in the final, 4–6, 6–4, 7–5.
Andy Murray was the defending champion, but chose not to participate this year.
Rafael Nadal defeated Gaël Monfils in the final, 7–5, 5–7, 6–0 to win the singles title at the 2016 Monte-Carlo Masters. It was his record-extending ninth Monte-Carlo Masters title.
Alexander Zverev was the defending champion, but chose not to defend his title.
Damir Džumhur was the defending champion but lost in the semifinals to Jan-Lennard Struff.
Tobias Kamke and Jan-Lennard Struff were the defending champions but only Struff decided to defend his title, partnering Daniel Masur.
Illya Marchenko was the defending champion but lost in the second round to Vincent Millot.
Paolo Lorenzi was the defending champion but chose not to defend his title.
Alexander Zverev defeated Novak Djokovic in the final, 6–4, 6–3, to win the men's singles title at the 2017 Italian Open. It was his first ATP Masters 1000 title, and he became the first player born in the 1990s to win a Masters 1000 title.
Jérémy Chardy and Henri Kontinen were the defending champions, but Chardy chose not to participate this year.
Daniil Medvedev was the defending champion, but chose not to defend his title.
Nikoloz Basilashvili defeated Jan-Lennard Struff in the final, 6–4, 7–6(7–5) to win the men's singles tennis title at the 2021 Bavarian International Tennis Championships. This was Basilashvili's second title on the 2021 ATP Tour.