Sanctioned Matchup Predictor
Stiven Kostelac vs Michael Ireland
Past Head-to-Head Rubbers (3)
| Winner | Loser | Score | Event | Rating Delta | |
|---|---|---|---|---|---|
| Stiven Kostelac | def. | Michael Ireland | 5,3,8 | TTACT 2026 Spring Pennant Thursday Rnd 1 (2026-10-15) | +2 |
| Stiven Kostelac | def. | Michael Ireland | 3,-8,-12,8,8 | TTACT 2025 Summer Pennant Tuesday Rnd 5 (2025-03-04) | +17 |
| Stiven Kostelac | def. | Michael Ireland | -5,7,-7,10,9 | TTACT 2026 P1 Thursday Pennant Rnd 3 (2026-02-19) | +4 |