Aleshin Sergey
From Moscow, Russia
EMA: 15990200
Internal rating (RR)
Rating date Sept. 4, 2025 (latest changes Sept. 3, 2025).
10 place (761.69).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (980.39 * 3.05 * 0.57 + 317.76 * 4.60 * 0.71 + 647.06 * 3.05 * 0.71 + 835.44 * 3.65 * 0.86 + 905.26 * 3.85 * 0.86 + 382.02 * 3.75 * 1 + 392.16 * 3.05 * 1 + 940.30 * 4.10 * 1 + 666.67 * 2.45 * 1 + 857.14 * 3.45 * 1) / (3.05 * 0.57 + 4.60 * 0.71 + 3.05 * 0.71 + 3.65 * 0.86 + 3.85 * 0.86 + 3.75 * 1 + 3.05 * 1 + 4.10 * 1 + 2.45 * 1 + 3.45 * 1) = 684.6481311327608
p2 = (940.30 * 4.10 * 1 + 905.26 * 3.85 * 0.86 + 857.14 * 3.45 * 1 + 835.44 * 3.65 * 0.86) / max_coefficients = 838.729054054054
score = 684.6481311327608 * 0.5 + 838.729054054054 * 0.5 = 761.6885925934074
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 9 -> 10 | 764.60 -> 761.69 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 7 -> 9 | 771.81 -> 764.60 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 13 -> 7 | 720.74 -> 771.81 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-09 | 13 | 720.54 -> 720.74 |
Agari Summer Tournament 2024: 86% -> 71% |
| 2025-08-04 | 11 -> 13 | 732.43 -> 720.54 |
Riichi over Volga: 100% -> 86% |
| 2025-07-13 | 10 -> 11 | 732.89 -> 732.43 |
Agari Summer Tournament 2025: 0% -> 100% |
| 2025-07-12 | 12 -> 10 | 722.93 -> 732.89 |
X Russian Championship: 86% -> 71% |
| 2025-07-10 | 11 -> 12 | 739.05 -> 722.93 |
Agari Spring Tournament 2024: 71% -> 57% |
| 2025-07-03 | 10 -> 11 | 742.36 -> 739.05 |
SPB Riichi Open 2023: 29% -> 14% |
| 2025-06-15 | 31 -> 10 | 637.94 -> 742.36 |
13 bloody tiles: 0% -> 100% |