Sirotkin Dmitry
From Moscow, Russia
EMA: 15990155
Common russian riichi rating (CRR)
Rating date Jan. 18, 2026 (latest changes Jan. 15, 2026).
12 place (711.87).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (235.29 * 3.05 * 0.14 + 456.52 * 2.10 * 0.29 + 252.34 * 4.60 * 0.29 + 803.92 * 3.05 * 0.43 + 822.78 * 3.65 * 0.57 + 431.58 * 3.85 * 0.57 + 449.44 * 3.75 * 0.71 + 903.23 * 3.10 * 0.86 + 738.10 * 2.60 * 1 + 490.20 * 3.05 * 1 + 305.08 * 3.25 * 1 + 714.29 * 3.50 * 1 + 761.19 * 4.10 * 1 + 976.74 * 3 * 1 + 922.08 * 3.45 * 1 + 300 * 3 * 1) / (3.05 * 0.14 + 2.10 * 0.29 + 4.60 * 0.29 + 3.05 * 0.43 + 3.65 * 0.57 + 3.85 * 0.57 + 3.75 * 0.71 + 3.10 * 0.86 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 3.50 * 1 + 4.10 * 1 + 3 * 1 + 3.45 * 1 + 3 * 1) = 638.9801776264135
p2 = (922.08 * 3.45 * 1 + 761.19 * 4.10 * 1 + 976.74 * 3 * 1 + 714.29 * 3.50 * 1) / max_coefficients = 784.7692307692307
score = 638.9801776264135 * 0.5 + 784.7692307692307 * 0.5 = 711.8747041978221
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-12 | 13 -> 12 | 708.69 -> 711.87 |
X Russian Championship: 43% -> 29% |
| 2026-01-10 | 13 | 706.54 -> 708.69 |
Agari Spring Tournament 2024: 29% -> 14% |
| 2026-01-07 | 10 -> 13 | 731.23 -> 706.54 |
Moscow Open Riichi Marathon 2026: 0% -> 100% Moscow Open Riichi Marathon: 100% -> 86% |
| 2026-01-01 | 11 -> 10 | 729.61 -> 731.23 |
SPB Riichi Open 2024: 71% -> 57% |
| 2025-12-13 | 12 -> 11 | 728.19 -> 729.61 |
Moscow Riichi 2024: 86% -> 71% |
| 2025-12-09 | 12 | 729.04 -> 728.19 |
Agari Summer Tournament 2024: 57% -> 43% |
| 2025-12-04 | 12 | 730.15 -> 729.04 |
Riichi over Volga: 71% -> 57% |
| 2025-11-30 | 13 -> 12 | 729.41 -> 730.15 |
Seihoku spring tournament 2024: 43% -> 29% |
| 2025-11-25 | 12 -> 13 | 729.41 | |
| 2025-11-22 | 11 -> 12 | 729.41 |