Sanctioned Matchup Predictor
Calvin Zhao vs Ian Ding
Past Head-to-Head Rubbers (4)
| Winner | Loser | Score | Event | Rating Delta | |
|---|---|---|---|---|---|
| Ian Ding | def. | Calvin Zhao | 1,3,5 | 2025 GDTTA Autumn Sunday League R 7 (2025-05-25) | +1 |
| Ian Ding | def. | Calvin Zhao | 4,10,2 | 2025 GDTTA Autumn Sunday League R 2 (2025-04-20) | +6 |
| Ian Ding | def. | Calvin Zhao | 6,8,6 | 2025 GDTTA Winter Sunday League Rnd 10 (2025-09-14) | +1 |
| Ian Ding | def. | Calvin Zhao | 3,2,4 | 2025 GDTTA Spring Sunday League Rnd 2 (2025-10-05) | +1 |