Stadium: Court 11 Round: 25 Ground: Hardcourt outdoor
| Wimbledon MD | 2021/07/01 17:00 | Koolhof W / Rojer J-J v Glasspool/Heliovaara | 7-5,3-6,4-6 |
| ATP Halle MD | 2021/06/17 10:35 | Koolhof W / Rojer J-J v 오거-알리아심 F / 후르카츠 H | 6-7,3-6 |
| French Open MD | 2021/06/05 12:25 | Koolhof W / Rojer J-J v 버브릭 알 / 골루베브 안 | 6-7,6-3,4-6 |
| French Open MD | 2021/06/04 11:25 | Koolhof W / Rojer J-J v Koepfer/Ruusuvuori | 6-4,7-6 |
| French Open MD | 2021/06/01 12:45 | Koolhof W / Rojer J-J v 크라지노비치 필 / 라조비치 두 | 6-4,4-6,6-2 |
| ATP Rome MD | 2021/05/14 08:00 | Arevalo/Middelkoop v Koolhof W / Rojer J-J | 2-6,7-6,10-5 |
| ATP Rome MD | 2021/05/13 08:00 | 베할 A / 에스코발 G v Koolhof W / Rojer J-J | 6-4,3-6,8-10 |
| ATP Rome MD | 2021/05/11 11:40 | Cecchinato/Travaglia v Koolhof W / Rojer J-J | 6-4,1-6,7-10 |
| Wimbledon MD | 2021/07/01 10:00 | 길 S / 블리에겐 J v Marach O / Qureshi A U H | 4-6,4-6 |
| ATP Halle MD | 2021/06/18 12:00 | Krawietz/Tecau v 길 S / 블리에겐 J | 7-6,7-5 |
| ATP Halle MD | 2021/06/17 13:45 | 길 S / 블리에겐 J v 보파나 R / 사란 D | 6-3,7-6 |
| ATP Halle MD | 2021/06/16 14:45 | 길 S / 블리에겐 J v 사빌 L / 톰프슨 J | 7-6,6-3 |
| French Open MD | 2021/06/06 09:00 | 안두얄 알바 파 / 마르티네즈 페 v 길 S / 블리에겐 J | 6-4,7-6 |
| French Open MD | 2021/06/04 09:00 | Krajicek A / Sandgren T v 길 S / 블리에겐 J | 4-6,1-6 |
| French Open MD | 2021/06/02 10:25 | 소네고 로 / 바바소리 안 v 길 S / 블리에겐 J | 4-6,4-6 |
| ATP Parma MD | 2021/05/26 09:00 | 길 S / 블리에겐 J v Passaro/Travaglia | 7-6,6-4 |