[149] Jack Sock 6-3,5-7,6-7 Daniel Altmaier [105] 2021-10-23 04:20
Stadium: Stadium Round: 27 Ground: Hardcourt indoor
Home History
| ATP Indian Wells | 2021/10/09 01:00 | Jack Sock v John Millman | 5-7,6-4,3-6 |
| US Open | 2021/09/02 21:25 | Jack Sock v Alexander Bublik | 7-6,6-7,6-4,4-6,6-3 |
| US Open | 2021/08/31 19:50 | Yoshihito Nishioka v Jack Sock | 7-6,2-6,4-6,2-6 |
| ATP Washington | 2021/08/04 23:15 | Rafael Nadal v Jack Sock | 6-2,4-6,7-6 |
| ATP Atlanta | 2021/07/29 23:00 | John Isner v Jack Sock | 7-6,6-4 |
| ATP Atlanta | 2021/07/28 00:00 | Jack Sock v Ricardas Berankis | 6-7,6-4,7-5 |
| Challenger Cary | 2021/07/21 22:40 | Christopher Eubanks v Jack Sock | 7-6,7-5 |
| Challenger Cary | 2021/07/20 21:00 | Jack Sock v Ulises Blanch | 2-6,6-4,6-2 |
Away History
| Challenger Bogota | 2021/10/21 18:15 | Alexis Galarneau v Daniel Altmaier | 6-3,3-6,6-3 |
| Challenger Bogota | 2021/10/19 20:55 | Dalibor Svrcina v Daniel Altmaier | 4-6,1-6 |
| ATP Indian Wells | 2021/10/09 22:30 | Grigor Dimitrov v Daniel Altmaier | 6-4,6-2 |
| ATP Indian Wells | 2021/10/07 18:00 | Daniel Altmaier v Sam Querrey | 6-2,6-4 |
| Challenger Lima | 2021/09/29 16:45 | Daniel Altmaier v Nicolas Kicker | 6-2,2-6,4-6 |
| Challenger Lima | 2021/09/27 16:30 | Daniel Altmaier v Guido Andreozzi | 7-6,6-7,6-2 |
| Challenger Como | 2021/09/03 10:55 | Daniel Altmaier v Riccardo Bonadio | 7-6,6-3 |
| Challenger Como | 2021/09/01 09:45 | Daniel Altmaier v Joao Menezes | 6-0,7-5 |