ATP · Head to Head
Stefan Kozlov vs Colton Smith
In short
Colton Smith leads their head-to-head 1–0. Most recent meeting: R32 – San Diego 2 Challenger 2026, won by Colton Smith (6-4 6-2).
Head-to-head in numbers
Wins by category and stats from the scores.
| Stefan Kozlov | — | Colton Smith |
|---|---|---|
| 0 | Challenger 75 | 1 |
| 0 | Sets won | 2 |
| 0 | Tie-breaks won | 0 |
| 0 | Deciding sets won | 0 |
All meetings
| Year | Tournament | Round | Winner | Score |
|---|---|---|---|---|
| 2026 | San Diego 2 Challenger · Challenger 75 | R32 | Colton Smith | 6-4 6-2 |
Based on tournaments synced by youaretennis.com: the history grows over time.
Comparison
| Stefan Kozlov | — | Colton Smith |
|---|---|---|
| 278 | Ranking | 218 |
| 195 | Points | 258 |
| 28.7 | Age | 23.6 |
 United States | Country | United States |
| — | 2025 record | 3-5 |
| 0 | 2025 titles | 0 |
| 0 | Titles 2021-2025 | 0 |
Records and titles: Grand Slams, Masters 1000, ATP 500 and 250 (no ATP Finals or Challengers).
Recent form
The last 5 matches played.
Stefan Kozlov
- L
vs Mitchell Krueger · 6-2 3-6 6-3
Columbus Challenger · Round of 16 · 2026
- W
vs James Kent Trotter · 6-3 6-2
Columbus Challenger · R32 · 2026
- L
vs Colton Smith · 6-4 6-2
San Diego 2 Challenger · R32 · 2026
- L
vs Darwin Blanch · 6-3 2-6 7-6(10)
Tiburon Challenger · R32 · 2026
- L
vs Nicolas Mejia · 6-1 6-2
Granby Challenger · R32 · 2024
Colton Smith
- L
vs Aidan Mayo · 6-2 7-6(8)
Columbus Challenger · Round of 16 · 2026
- W
vs Duncan Chan · 6-2 6-4
Columbus Challenger · R32 · 2026
- L
vs Timo Legout · 6-3 6-3
San Diego 2 Challenger · Round of 16 · 2026
- W
vs Stefan Kozlov · 6-4 6-2
San Diego 2 Challenger · R32 · 2026
- L
vs Petr Bar Biryukov · 6-4 7-6(4)
Jinan Challenger · Quarterfinal · 2025