Novikov Dmitriy
From Saint Petersburg, Russia
EMA: 15990278
Internal rating (RR)
Rating date Sept. 4, 2025 (latest changes Sept. 3, 2025).
2 place (805.64).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (568.63 * 3.05 * 0.57 + 739.13 * 2.10 * 0.57 + 962.62 * 4.60 * 0.71 + 468.35 * 3.65 * 0.86 + 1000 * 3.85 * 0.86 + 876.40 * 3.75 * 1 + 862.75 * 3.05 * 1 + 432.84 * 4.10 * 1 + 844.16 * 3.45 * 1) / (3.05 * 0.57 + 2.10 * 0.57 + 4.60 * 0.71 + 3.65 * 0.86 + 3.85 * 0.86 + 3.75 * 1 + 3.05 * 1 + 4.10 * 1 + 3.45 * 1) = 755.7654126340315
p2 = (1000 * 3.85 * 0.86 + 876.40 * 3.75 * 1 + 962.62 * 4.60 * 0.71 + 844.16 * 3.45 * 1) / max_coefficients = 855.516891891892
score = 755.7654126340315 * 0.5 + 855.516891891892 * 0.5 = 805.6411522629617
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 1 -> 2 | 827.82 -> 805.64 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 1 | 836.95 -> 827.82 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 1 | 794.06 -> 836.95 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-09 | 2 -> 1 | 794.06 | |
| 2025-08-04 | 3 -> 2 | 787.12 -> 794.06 |
Riichi over Volga: 100% -> 86% |
| 2025-07-30 | 3 | 787.16 -> 787.12 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-12 | 2 -> 3 | 802.39 -> 787.16 |
X Russian Championship: 86% -> 71% |
| 2025-07-10 | 2 | 801.01 -> 802.39 |
Agari Spring Tournament 2024: 71% -> 57% |
| 2025-07-03 | 2 | 796.03 -> 801.01 |
SPB Riichi Open 2023: 29% -> 14% |
| 2025-06-15 | 1 -> 2 | 834.84 -> 796.03 |
13 bloody tiles: 0% -> 100% |