Novikov Dmitriy
From Saint Petersburg, Russia
EMA: 15990278
Common russian riichi rating (CRR)
Rating date Dec. 17, 2025 (latest changes Dec. 13, 2025).
10 place (732.33).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (568.63 * 3.05 * 0.29 + 739.13 * 2.10 * 0.29 + 962.62 * 4.60 * 0.43 + 468.35 * 3.65 * 0.57 + 1000 * 3.85 * 0.71 + 876.40 * 3.75 * 0.71 + 862.75 * 3.05 * 1 + 432.84 * 4.10 * 1 + 844.16 * 3.45 * 1) / (3.05 * 0.29 + 2.10 * 0.29 + 4.60 * 0.43 + 3.65 * 0.57 + 3.85 * 0.71 + 3.75 * 0.71 + 3.05 * 1 + 4.10 * 1 + 3.45 * 1) = 752.8605865185212
p2 = (844.16 * 3.45 * 1 + 1000 * 3.85 * 0.71 + 862.75 * 3.05 * 1 + 876.40 * 3.75 * 0.71) / max_coefficients = 711.7946488294315
score = 752.8605865185212 * 0.5 + 711.7946488294315 * 0.5 = 732.3276176739764
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-13 | 9 -> 10 | 749.52 -> 732.33 |
Moscow Riichi 2024: 86% -> 71% |
| 2025-12-09 | 8 -> 9 | 749.52 | |
| 2025-12-04 | 9 -> 8 | 746.21 -> 749.52 |
Riichi over Volga: 71% -> 57% |
| 2025-12-01 | 10 -> 9 | 746.21 | |
| 2025-11-30 | 9 -> 10 | 746.14 -> 746.21 |
Seihoku spring tournament 2024: 43% -> 29% |
| 2025-11-12 | 8 -> 9 | 749.11 -> 746.14 |
X Russian Championship: 57% -> 43% |
| 2025-11-10 | 8 | 747.42 -> 749.11 |
Agari Spring Tournament 2024: 43% -> 29% |
| 2025-11-04 | 7 -> 8 | 764.31 -> 747.42 | |
| 2025-11-01 | 5 -> 7 | 784.90 -> 764.31 |
SPB Riichi Open 2024: 86% -> 71% |
| 2025-10-22 | 4 -> 5 | 784.90 |