15 Ruud Casper - Fonseca Joao 28
5-7 6-7 7-5 2-6
| Date | Tournament | Surface | Opponent | W/L | Score | |
|---|---|---|---|---|---|---|
| May 29, 2026 | French Open | clay | Paul Tommy | W | 4-6 6-7 6-4 7-6 7-5 | |
| May 27, 2026 | French Open | clay | Medjedovic Hamad | W | 6-3 6-2 6-4 | |
| May 25, 2026 | French Open | clay | Safiullin Roman | W | 6-2 7-6 5-7 0-6 6-2 | |
| May 21, 2026 | Geneva | clay | Popyrin Alexei | W | 6-4 6-3 | |
| May 20, 2026 | Geneva | clay | Collignon Raphael | W | 7-6 6-2 | |
| May 19, 2026 | Geneva | clay | Brooksby Jenson | W | 6-3 7-5 | |
| May 17, 2026 | Rome | clay | Sinner Jannik | L | 4-6 4-6 | |
| May 15, 2026 | Rome | clay | Darderi Luciano | W | 6-1 6-1 | |
| May 13, 2026 | Rome | clay | Khachanov Karen | W | 6-1 1-6 6-2 | |
| May 12, 2026 | Rome | clay | Musetti Lorenzo | W | 6-3 6-1 | |
| May 10, 2026 | Rome | clay | Lehecka Jiri | W | 6-3 6-4 | |
| May 08, 2026 | Rome | clay | Svajda Zachary | W | 6-1 6-3 | |
| Apr 30, 2026 | Madrid | clay | Blockx Alexander | L | 4-6 4-6 | |
| Apr 28, 2026 | Madrid | clay | Tsitsipas Stefanos | W | 6-7 7-6 7-6 | |
| Apr 27, 2026 | Madrid | clay | Davidovich Fokina Alejandro | W | 6-3 6-1 | |
| Apr 25, 2026 | Madrid | clay | Munar Jaume | W | 6-0 6-1 | |
| Apr 09, 2026 | Monte Carlo | clay | Auger Aliassime Felix | L | 5-7 2-2 ret | |
| Apr 08, 2026 | Monte Carlo | clay | Moutet Corentin | W | 7-5 6-3 | |
| Apr 07, 2026 | Monte Carlo | clay | Popyrin Alexei | W | 6-3 6-4 | |
| Mar 20, 2026 | Miami | hard | Quinn Ethan | L | 4-6 6-7 | |
| Mar 11, 2026 | Indian Wells | hard | Alcaraz Carlos | L | 1-6 6-7 | |
| Mar 10, 2026 | Indian Wells | hard | Vacherot Valentin | W | 3-6 6-3 6-4 | |
| Mar 07, 2026 | Indian Wells | hard | Shevchenko Alexander | W | 6-1 7-6 | |
| Feb 25, 2026 | Acapulco | hard | Wu Yibing | L | 6-7 6-7 | |
| Feb 20, 2026 | Delray Beach | hard | Korda Sebastian | L | 6-4 2-6 2-6 | |
| Feb 19, 2026 | Delray Beach | hard | Giron Marcos | W | 4-6 7-6 6-4 | |
| Jan 26, 2026 | Australian Open | hard | Shelton Ben | L | 6-3 4-6 3-6 4-6 | |
| Jan 24, 2026 | Australian Open | hard | Cilic Marin | W | 6-4 6-4 3-6 7-5 | |
| Jan 22, 2026 | Australian Open | hard | Munar Jaume | W | 6-3 7-5 6-4 | |
| Jan 19, 2026 | Australian Open | hard | Bellucci Mattia | W | 6-1 6-2 6-4 | |
| Jan 14, 2026 | Auckland | hard | Marozsan Fabian | L | 4-6 4-6 |
| Date | Tournament | Surface | Opponent | W/L | Score | |
|---|---|---|---|---|---|---|
| May 29, 2026 | French Open | clay | Djokovic Novak | W | 4-6 4-6 6-3 7-5 7-5 | |
| May 27, 2026 | French Open | clay | Prizmic Dino | W | 3-6 4-6 6-3 6-1 6-2 | |
| May 24, 2026 | French Open | clay | Pavlovic Luka | W | 7-6 6-4 6-2 | |
| May 09, 2026 | Rome | clay | Medjedovic Hamad | L | 6-3 3-6 6-7 | |
| Apr 26, 2026 | Madrid | clay | Jodar Rafael | L | 6-7 6-4 1-6 | |
| Apr 24, 2026 | Madrid | clay | Cilic Marin | W | Walkover | |
| Apr 17, 2026 | Munich | clay | Shelton Ben | L | 3-6 6-3 3-6 | |
| Apr 15, 2026 | Munich | clay | Rinderknech Arthur | W | 6-3 6-2 | |
| Apr 14, 2026 | Munich | clay | Tabilo Alejandro | W | 7-6 6-3 | |
| Apr 10, 2026 | Monte Carlo | clay | Zverev Alexander | L | 5-7 7-6 3-6 | |
| Apr 09, 2026 | Monte Carlo | clay | Berrettini Matteo | W | 6-3 6-2 | |
| Apr 08, 2026 | Monte Carlo | clay | Rinderknech Arthur | W | 7-5 4-6 6-3 | |
| Apr 06, 2026 | Monte Carlo | clay | Diallo Gabriel | W | 6-2 6-3 | |
| Mar 21, 2026 | Miami | hard | Alcaraz Carlos | L | 4-6 4-6 | |
| Mar 19, 2026 | Miami | hard | Marozsan Fabian | W | 6-4 3-6 6-2 | |
| Mar 11, 2026 | Indian Wells | hard | Sinner Jannik | L | 6-7 6-7 | |
| Mar 09, 2026 | Indian Wells | hard | Paul Tommy | W | 6-2 6-3 | |
| Mar 07, 2026 | Indian Wells | hard | Khachanov Karen | W | 4-6 7-6 6-4 | |
| Mar 05, 2026 | Indian Wells | hard | Collignon Raphael | W | 7-6 6-4 | |
| Feb 20, 2026 | Rio de Janeiro | clay | Buse Ignacio | L | 7-5 3-6 4-6 | |
| Feb 17, 2026 | Rio de Janeiro | clay | Monteiro Thiago Moura | W | 7-6 6-1 | |
| Feb 11, 2026 | Buenos Aires | clay | Tabilo Alejandro | L | 3-6 6-3 5-7 | |
| Jan 20, 2026 | Australian Open | hard | Spizzirri Eliot | L | 4-6 6-2 1-6 2-6 |