Sirotkin Dmitry
From Moscow, Russia
EMA: 15990155
Common russian riichi rating (CRR)
Rating date Oct. 13, 2025 (latest changes Oct. 13, 2025).
12 place (739.43).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835
p1 = (235.29 * 3.05 * 0.43 + 456.52 * 2.10 * 0.43 + 252.34 * 4.60 * 0.57 + 803.92 * 3.05 * 0.57 + 822.78 * 3.65 * 0.71 + 431.58 * 3.85 * 0.86 + 449.44 * 3.75 * 0.86 + 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 + 976.74 * 3 * 1 + 922.08 * 3.45 * 1) / (3.05 * 0.43 + 2.10 * 0.43 + 4.60 * 0.57 + 3.05 * 0.57 + 3.65 * 0.71 + 3.85 * 0.86 + 3.75 * 0.86 + 3.10 * 1 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 3.50 * 1 + 4.10 * 1 + 3 * 1 + 3.45 * 1) = 640.3552316779624
p2 = (922.08 * 3.45 * 1 + 761.19 * 4.10 * 1 + 976.74 * 3 * 1 + 903.23 * 3.10 * 1) / max_coefficients = 838.4974461378823
score = 640.3552316779624 * 0.5 + 838.4974461378823 * 0.5 = 739.4263389079224
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-13 | 13 -> 12 | 725.46 -> 739.43 |
Moscow Riichi 2024: 100% -> 86% |
| 2025-10-09 | 13 | 726.31 -> 725.46 |
Agari Summer Tournament 2024: 71% -> 57% |
| 2025-10-04 | 13 | 727.42 -> 726.31 |
Riichi over Volga: 86% -> 71% |
| 2025-09-30 | 13 | 726.78 -> 727.42 |
Seihoku spring tournament 2024: 57% -> 43% |
| 2025-09-25 | 12 -> 13 | 726.78 | |
| 2025-09-12 | 14 -> 12 | 724.21 -> 726.78 |
X Russian Championship: 71% -> 57% |
| 2025-09-10 | 14 | 722.22 -> 724.21 |
Agari Spring Tournament 2024: 57% -> 43% |
| 2025-09-03 | 15 -> 14 | 721.35 -> 722.22 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 20 -> 15 | 709.44 -> 721.35 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 27 -> 20 | 677.20 -> 709.44 |
SPB Riichi Open 2025: 0% -> 100% |