Sanctioned Matchup Predictor
Karen Kupinic vs Bert Grotaers
Past Head-to-Head Rubbers (5)
| Winner | Loser | Score | Event | Rating Delta | |
|---|---|---|---|---|---|
| Bert Grotaers | def. | Karen Kupinic | 11,8 | 2026 CDTTA Monday Morning Spring Rnd 1 (2026-10-05) | +14 |
| Bert Grotaers | def. | Karen Kupinic | 14,9 | 2024 Croydon Pennants 04 - 1602 (2024-02-16) | +1 |
| Bert Grotaers | def. | Karen Kupinic | 12,-17,15 | 2024 Croydon Pennants 09 - 2203 (2024-03-22) | +1 |
| Bert Grotaers | def. | Karen Kupinic | 16,14 | 2025 CDTTA Monday Morning Spring Rnd 5 (2025-11-03) | +5 |
| Bert Grotaers | def. | Karen Kupinic | -18,18,13 | 2026 CDTTA Thursday Morning Summer Rnd 7 (2026-03-12) | +5 |