Sanctioned Matchup Predictor
Derek Chen vs Gladwin Rajkumar
Past Head-to-Head Rubbers (7)
| Winner | Loser | Score | Event | Rating Delta | |
|---|---|---|---|---|---|
| Derek Chen | def. | Gladwin Rajkumar | 4-3 | GDTTA Autumn Masters League Thurs R2 (2024-04-25) | +27 |
| Gladwin Rajkumar | def. | Derek Chen | 3-1 | 2025 GDTTA Winter Premier League R2 (2025-07-15) | +7 |
| Gladwin Rajkumar | def. | Derek Chen | 4-2 | 2025 GDTTA Autumn Masters League R4 (2025-05-07) | +7 |
| Gladwin Rajkumar | def. | Derek Chen | 4-0 | GDTTA Spring Thursday Pennant Round 10 (2023-12-07) | +8 |
| Derek Chen | def. | Gladwin Rajkumar | 4-0 | 2025 GDTTA Autumn Masters League R9 (2025-06-19) | +11 |
| Gladwin Rajkumar | def. | Derek Chen | 6,9,8,10 | 2025 GDTTA Spring Masters League Rnd 6 (2025-11-06) | +11 |
| Gladwin Rajkumar | def. | Derek Chen | 8,8,-3,3,-7,8 | 2026 GDTTA Masters League Winter Rnd 4 (2026-08-06) | +5 |