Sanctioned Matchup Predictor
Mark Norman vs Dianne O'Brien
Past Head-to-Head Rubbers (7)
| Winner | Loser | Score | Event | Rating Delta | |
|---|---|---|---|---|---|
| Mark Norman | def. | Dianne O'Brien | BDTTA Winter Pennant 2026 B Grade R13 (2026-10-20) | +2 | |
| Mark Norman | def. | Dianne O'Brien | BDTTA Summer Pennant 2026 B Grade R16 (2026-05-26) | +3 | |
| Dianne O'Brien | def. | Mark Norman | BDTTA C Grade 2025 Winter Pennant Rnd 9 (2025-09-18) | +4 | |
| Mark Norman | def. | Dianne O'Brien | BDTTA C Grade 2026 Summer Pennant Rnd 4 (2026-02-26) | +7 | |
| Mark Norman | def. | Dianne O'Brien | BDTTA Summer Pennant 2026 B Grade R6 (2026-03-10) | +6 | |
| Mark Norman | def. | Dianne O'Brien | BDTTA Summer Pennant 2026 B Grade R15 (2026-05-19) | +3 | |
| Mark Norman | def. | Dianne O'Brien | BDTTA Winter Pennant 2026 B Grade R6 (2026-08-18) | +2 |