Sanctioned Matchup Predictor
Ethan Haley vs Jan Kuboszek
Past Head-to-Head Rubbers (10)
| Winner | Loser | Score | Event | Rating Delta | |
|---|---|---|---|---|---|
| Jan Kuboszek | def. | Ethan Haley | -12,10,10,8,8 | 2026 GDTTA Sunday League Spring Rnd 4 (2026-10-18) | +3 |
| Ethan Haley | def. | Jan Kuboszek | -9,10,9,-4,12 | 2026 GDTTA Premier League Spring Rnd 3 (2026-10-13) | +9 |
| Jan Kuboszek | def. | Ethan Haley | -6,7,6,-7,6 | 2025 GDTTA Winter Sunday League Rnd 1 (2025-07-06) | +2 |
| Ethan Haley | def. | Jan Kuboszek | 8,7,8,10 | 2026 GDTTA Sunday League Autumn Rnd 1 (2026-04-19) | +14 |
| Jan Kuboszek | def. | Ethan Haley | 9,7,8 | 2026 GDTTA Premier League Autumn Rnd 4 (2026-05-12) | +8 |
| Jan Kuboszek | def. | Ethan Haley | 6,9,8 | 2025 GDTTA Winter Sunday League Rnd 6 (2025-08-17) | +2 |
| Jan Kuboszek | def. | Ethan Haley | 5,-9,7,-7,4,-13,2 | 2026 GDTTA Sunday League Autumn Rnd 6 (2026-05-24) | +5 |
| Ethan Haley | def. | Jan Kuboszek | 6,8,-7,-7,9 | 2026 GDTTA Premier League Autumn Rnd 9 (2026-06-23) | +13 |
| Jan Kuboszek | def. | Ethan Haley | 6,9,3,-8,12 | 2026 GDTTA Sunday League Autumn Rnd GF (2026-07-05) | +4 |
| Jan Kuboszek | def. | Ethan Haley | 6,9,-2,5 | 2026 GDTTA Premier League Autumn Rnd GF (2026-07-07) | +4 |