 Austria: Kitzbuhel - Singles - Main |
|---|
| Quarter-finals | Ruud C. | Ymer M. | 2:1 (3:6, 7:65, 6:1) | details | 29.07.2021 |
| 1/8-finals | Ruud C. | Vilella M. M. | 2:1 (7:5, 5:7, 6:4) | details | 28.07.2021 |
 Switzerland: Gstaad - Singles - Main |
|---|
| Final | Ruud C. | Gaston H. | 2:0 (6:3, 6:2) | details | 25.07.2021 |
| Semi-finals | Kopriva V. | Ruud C. | 0:2 (3:6, 0:6) | details | 24.07.2021 |
| Quarter-finals | Ruud C. | Paire B. | 2:1 (6:2, 5:7, 6:3) | details | 23.07.2021 |
| 1/8-finals | Ruud C. | Novak D. | 2:0 (6:4, 7:65) | details | 22.07.2021 |
 Sweden: Bastad - Singles - Main |
|---|
| Final | Ruud C. | Coria F. | 2:0 (6:3, 6:3) | details | 18.07.2021 |
| Semi-finals | Ruud C. | Carballes Baena R. | 2:0 (6:1, 6:4) | details | 17.07.2021 |
| Quarter-finals | Ruud C. | Laaksonen H. | WO. | details | 16.07.2021 |
| 1/8-finals | Ruud C. | Rune H. | 2:0 (6:0, 6:2) | details | 15.07.2021 |
 United Kingdom: Wimbledon - Singles - Main |
|---|
| 1/64-finals | Thompson J. | Ruud C. | 3:2 (7:66, 7:63, 2:6, 2:6, 6:2) | details | 30.06.2021 |
 Spain: Mallorca - Singles - Main |
|---|
| Quarter-finals | Medvedev D. | Ruud C. | 2:0 (7:5, 6:1) | details | 24.06.2021 |
| 1/8-finals | Sandgren T. | Ruud C. | 0:2 (3:6, 4:6) | details | 22.06.2021 |
| 1/16-finals | Simon G. | Ruud C. | 0:2 (4:6, 64:7) | details | 21.06.2021 |
 France: French Open - Singles - Main |
|---|
| 1/16-finals | Ruud C. | Davidovich Fokina A. | 2:3 (63:7, 6:2, 66:7, 6:0, 5:7) | details | 04.06.2021 |
| 1/32-finals | Ruud C. | Majchrzak K. | 3:0 (6:3, 6:2, 6:4) | details | 02.06.2021 |
| 1/64-finals | Ruud C. | Paire B. | 3:1 (5:7, 6:2, 6:1, 7:64) | details | 31.05.2021 |
| Switzerland: Geneva - Singles - Main |
|---|
| Final | Ruud C. | Shapovalov D. | 2:0 (7:66, 6:4) | details | 22.05.2021 |
| Semi-finals | Andujar-Alba P. | Ruud C. | 0:2 (3:6, 2:6) | details | 21.05.2021 |
| Quarter-finals | Ruud C. | Koepfer D. | 2:1 (2:6, 6:1, 6:4) | details | 20.05.2021 |
| 1/8-finals | Ruud C. | Sandgren T. | 2:0 (7:5, 6:2) | details | 19.05.2021 |
 Italy: Rome - Singles - Main |
|---|
| 1/32-finals | Shapovalov D. | Ruud C. | CAN. | details | 10.05.2021 |
| Spain: Madrid - Singles - Main |
|---|
| Semi-finals | Ruud C. | Berrettini M. | 0:2 (4:6, 4:6) | details | 08.05.2021 |
| Quarter-finals | Bublik A. | Ruud C. | 0:2 (5:7, 1:6) | details | 07.05.2021 |
| 1/8-finals | Ruud C. | Tsitsipas S. | 2:0 (7:64, 6:4) | details | 06.05.2021 |
| 1/16-finals | Ruud C. | Nishioka Y. | 2:0 (6:1, 6:2) | details | 05.05.2021 |
| 1/32-finals | Auger-Aliassime F. | Ruud C. | 0:2 (1:6, 4:6) | details | 04.05.2021 |
 Germany: Munich - Singles - Main |
|---|
| Semi-finals | Basilashvili N. | Ruud C. | 2:0 (6:1, 6:2) | details | 01.05.2021 |
| Quarter-finals | Millman J. | Ruud C. | 0:2 (3:6, 4:6) | details | 01.05.2021 |
| 1/8-finals | Cuevas P. | Ruud C. | 0:2 (3:6, 2:6) | details | 28.04.2021 |
 Monaco: Monte Carlo - Singles - Main |
|---|
| Semi-finals | Rublev A. | Ruud C. | 2:0 (6:3, 7:5) | details | 17.04.2021 |
| Quarter-finals | Ruud C. | Fognini F. | 2:0 (6:4, 6:3) | details | 16.04.2021 |
| 1/8-finals | Ruud C. | Carreno-Busta P. | 2:1 (7:64, 5:7, 7:5) | details | 15.04.2021 |
| 1/16-finals | Schwartzman D. | Ruud C. | 0:2 (3:6, 3:6) | details | 14.04.2021 |
| 1/32-finals | Rune H. | Ruud C. | 0:2 (2:6, 1:6) | details | 13.04.2021 |
| Spain: Marbella - Singles - Main |
|---|
| Quarter-finals | Alcaraz C. | Ruud C. | 2:0 (6:2, 6:4) | details | 09.04.2021 |
| 1/8-finals | Mager G. | Ruud C. | 0:2 (3:6, 2:6) | details | 08.04.2021 |
 Mexico: Acapulco - Singles - Main |
|---|
| Quarter-finals | Ruud C. | Zverev A. | WO. | details | 19.03.2021 |
| 1/8-finals | Ruud C. | Griekspoor T. | 2:1 (4:6, 6:3, 7:63) | details | 18.03.2021 |
| 1/16-finals | Ruud C. | Galan Riveros D. E. | 2:0 (6:4, 6:1) | details | 17.03.2021 |
 Australia: Australian Open - Singles - Main |
|---|
| 1/8-finals | Rublev A. | Ruud C. | 2:0 RET. (6:2, 7:63) | details | 15.02.2021 |
| 1/16-finals | Ruud C. | Albot R. | 3:1 (6:1, 5:7, 6:4, 6:4) | details | 13.02.2021 |
