Sirotkin Dmitry
From Moscow, Russia
EMA: 15990155
Common russian riichi rating (CRR)
Rating date Aug. 2, 2025 (latest changes July 30, 2025).
28 place (662.06).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35
p1 = (495.33 * 4 * 0.14 + 235.29 * 3.05 * 0.57 + 456.52 * 2.10 * 0.57 + 252.34 * 4.60 * 0.71 + 803.92 * 3.05 * 0.86 + 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 + 761.19 * 4.10 * 1) / (4 * 0.14 + 3.05 * 0.57 + 2.10 * 0.57 + 4.60 * 0.71 + 3.05 * 0.86 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1 + 3.10 * 1 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 3.50 * 1 + 4.10 * 1) = 579.8792452211632
p2 = (761.19 * 4.10 * 1 + 822.78 * 3.65 * 1 + 903.23 * 3.10 * 1 + 714.29 * 3.50 * 1) / max_coefficients = 744.2384364820847
score = 579.8792452211632 * 0.5 + 744.2384364820847 * 0.5 = 662.0588408516239
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-07-30 | 29 -> 28 | 661.60 -> 662.06 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-13 | 28 -> 29 | 676.00 -> 661.60 |
Agari Summer Tournament 2025: 0% -> 100% |
| 2025-07-12 | 28 | 669.04 -> 676.00 |
X Russian Championship: 86% -> 71% |
| 2025-07-10 | 28 | 666.88 -> 669.04 |
Agari Spring Tournament 2024: 71% -> 57% |
| 2025-07-03 | 28 | 666.08 -> 666.88 |
SPB Riichi Open 2023: 29% -> 14% |
| 2025-06-15 | 40 -> 28 | 618.32 -> 666.08 |
13 bloody tiles: 0% -> 100% |
| 2025-06-11 | 32 -> 40 | 633.11 -> 618.32 |
Money can not buy tenpai: 14% -> 0% |
| 2025-06-09 | 30 -> 32 | 646.02 -> 633.11 |
Agari Summer Tournament 2024: 100% -> 86% |
| 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% |