Sirotkin Dmitry
From Moscow, Russia
EMA: 15990155
Common russian riichi rating (CRR)
Rating date Aug. 31, 2025 (latest changes Aug. 31, 2025).
20 place (709.44).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (495.33 * 4 * 0.14 + 235.29 * 3.05 * 0.57 + 456.52 * 2.10 * 0.57 + 803.92 * 3.05 * 0.71 + 822.78 * 3.65 * 0.86 + 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 + 133.33 * 2.45 * 1 + 976.74 * 3 * 1 + 922.08 * 3.45 * 1) / (4 * 0.14 + 3.05 * 0.57 + 2.10 * 0.57 + 3.05 * 0.71 + 3.65 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.10 * 1 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 3.50 * 1 + 4.10 * 1 + 2.45 * 1 + 3 * 1 + 3.45 * 1) = 627.275588840404
p2 = (922.08 * 3.45 * 1 + 761.19 * 4.10 * 1 + 976.74 * 3 * 1 + 903.23 * 3.10 * 1) / max_coefficients = 791.5986842105264
score = 627.275588840404 * 0.5 + 791.5986842105264 * 0.5 = 709.4371365254651
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-31 | 27 -> 20 | 677.20 -> 709.44 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-09 | 28 -> 27 | 678.25 -> 677.20 |
Agari Summer Tournament 2024: 86% -> 71% |
| 2025-08-04 | 23 -> 28 | 689.89 -> 678.25 |
Riichi over Volga: 100% -> 86% |
| 2025-08-03 | 28 -> 23 | 662.06 -> 689.89 |
Two roosters and Chuckles: 0% -> 100% |
| 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% |