Sirotkin Dmitry
From Moscow, Russia
EMA: 15990155
Common russian riichi rating (CRR)
Rating date May 31, 2025 (latest changes May 30, 2025).
30 place (646.02).
how we calculated rating score
max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266
p1 = (494.25 * 3.75 * 0.14 + 495.33 * 4 * 0.29 + 235.29 * 3.05 * 0.71 + 456.52 * 2.10 * 0.71 + 803.92 * 3.05 * 1 + 822.78 * 3.65 * 1 + 431.58 * 3.85 * 1 + 449.44 * 3.75 * 1 + 903.23 * 3.10 * 1 + 738.10 * 2.60 * 1 + 490.20 * 3.05 * 1 + 305.08 * 3.25 * 1 + 714.29 * 3.50 * 1) / (3.75 * 0.14 + 4 * 0.29 + 3.05 * 0.71 + 2.10 * 0.71 + 3.05 * 1 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1 + 3.10 * 1 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 3.50 * 1) = 584.1204619692286
p2 = (822.78 * 3.65 * 1 + 903.23 * 3.10 * 1 + 714.29 * 3.50 * 1 + 803.92 * 3.05 * 1) / max_coefficients = 707.9155328954903
score = 584.1204619692286 * 0.5 + 707.9155328954903 * 0.5 = 646.0179974323594
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-05-30 | 31 -> 30 | 645.48 -> 646.02 |
Seihoku spring tournament 2024: 86% -> 71% |
| 2025-05-12 | 34 -> 31 | 630.80 -> 645.48 |
X Russian Championship: 100% -> 86% |
| 2025-05-10 | 34 | 628.69 -> 630.80 |
Agari Spring Tournament 2024: 86% -> 71% |
| 2025-05-03 | 43 -> 34 | 587.22 -> 628.69 |
SPB Riichi Open 2023: 43% -> 29% Riichi over The Volga 2025: 0% -> 100% |
| 2025-04-26 | 41 -> 43 | 587.22 | |
| 2025-04-11 | 41 | 586.93 -> 587.22 |
Money can not buy tenpai: 29% -> 14% |
| 2025-03-30 | 42 -> 41 | 586.63 -> 586.93 |
Seihoku spring tournament 2024: 100% -> 86% |
| 2025-03-10 | 43 -> 42 | 584.88 -> 586.63 |
Agari Spring Tournament 2024: 100% -> 86% |
| 2025-03-03 | 43 | 584.64 -> 584.88 |
SPB Riichi Open 2023: 57% -> 43% |
| 2025-02-25 | 44 -> 43 | 584.64 |