ATP · Head to Head
Gauthier Onclin vs Billy Harris
In short
Billy Harris leads their head-to-head 1–0. Most recent meeting: Quarterfinal – Guangzhou Challenger 2025, won by Billy Harris (6-2 7-6(6)).
Head-to-head in numbers
Wins by category and stats from the scores.
| Gauthier Onclin | — | Billy Harris |
|---|---|---|
| 0 | Challenger 100 | 1 |
| 0 | Sets won | 2 |
| 0 | Tie-breaks won | 1 |
| 0 | Deciding sets won | 0 |
All meetings
| Year | Tournament | Round | Winner | Score |
|---|---|---|---|---|
| 2025 | Guangzhou Challenger · Challenger 100 | Quarterfinal | Billy Harris | 6-2 7-6(6) |
Based on tournaments synced by youaretennis.com: the history grows over time.
Comparison
| Gauthier Onclin | — | Billy Harris |
|---|---|---|
| 173 | Ranking | 252 |
| 333 | Points | 218 |
| 25.7 | Age | 31.8 |
 Belgium | Country |  United Kingdom |
| 0-1 | 2025 record | 3-8 |
| 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.
Gauthier Onclin
- L
vs Jan-Lennard Struff · 6-4 6-2
European Open - Brussels · Round of 16 · 2026
- L
vs Felix Balshaw · 6-4 6-7(3) 6-4
Roanne Challenger · R32 · 2026
- L
vs Daniil Glinka · 4-6 6-2 6-3
Villena Challenger · R32 · 2026
- L
vs Sascha Gueymard Wayenburg · 6-1 6-4
Mouilleron-Le-Captif Challenger · Round of 16 · 2026
- W
vs Dan Added · 7-6(4) 6-2
Mouilleron-Le-Captif Challenger · R32 · 2026
Billy Harris
- L
vs Terence Atmane · 6-3 6-1
Seoul Challenger · Semifinal · 2026
- W
vs Rei Sakamoto · 3-0 ret.
Seoul Challenger · Quarterfinal · 2026
- W
vs Aleksandar Vukic · 6-2 6-4
Seoul Challenger · Round of 16 · 2026
- L
vs Felix Balshaw · 7-6(6) 3-6 7-6(3)
Mouilleron-Le-Captif Challenger · R32 · 2026
- L
vs Murphy Cassone · 7-6(3) 6-4
St. Tropez Challenger · Round of 16 · 2026