ATP
Jan Kumstat
19.8 years old Date of birth: January 2, 2007- Current ATP ranking
- 190
- Points (live)
- 308
- +6 since the start of the tournament
Profile
- Best ranking
- No. 184 (September 14, 2026)
Jan Kumstat is No. 190 in the ATP rankings with 308 points. Ahead is Guido Ivan Justo (No. 189) with 0 more points; behind is Jack Pinnington Jones (No. 191) with 6 fewer. Down 3 places since September 9, 2026.
Ranking trend
Points trend
Current tournament progress
Seoul Challenger
R32 (eliminated)
- Next (next round)
- —
- Max (if they win the tournament)
- —
Last match
Recent matches
| Result | Round | Opponent | Score | Head to head |
|---|---|---|---|---|
| Seoul Challenger 2026 · Challenger 125 · Hard | ||||
| L | R32 | Sho Shimabukuro | 6-4 6-0 | H2H |
| Olbia Challenger 2026 · Challenger 125 · Hard | ||||
| L | Round of 16 | Jacob Fearnley | 6-4 6-3 | H2H |
| W | R32 | Edas Butvilas | 7-6(4) 7-6(5) | H2H |
Matches from the tournaments tracked by the site, most recent first.
Season results
| Year | Tournament | Round | Points |
|---|---|---|---|
| 2026 | Seoul Challenger · Challenger 125 | R32 | 6 |
| 2026 | Olbia Challenger · Challenger 125 | Round of 16 | 13 |
Ranking neighbours
| Pos. | Player | Points | Gap |
|---|---|---|---|
| 188 |  Keegan Smith | 310 | +2 |
| 189 |  Guido Ivan Justo | 308 | 0 |
| 190 | Jan Kumstat | 308 | — |
| 191 |  Jack Pinnington Jones | 302 | -6 |
| 192 |  Alexis Galarneau | 302 | -6 |
Most played rivalries
- Sho Shimabukuro (0-1 in 1)
- Jacob Fearnley (0-1 in 1)
- Edas Butvilas (1-0 in 1)