Shumakov Aleksandr
From Novosibirsk, Russia
Common russian riichi rating (CRR)
Rating date Nov. 3, 2026 (latest changes Nov. 3, 2026).
341 place (104.86).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (32.26 * 2.40 * 0.43 + 371.43 * 2.50 * 1 + 0 + 0 + 0) / (2.40 * 0.43 + 2.50 * 1 + 1 + 1 + 1) = 147.31245711204784
p2 = (371.43 * 2.50 * 1 + 32.26 * 2.40 * 0.43) / max_coefficients = 62.41077222582739
score = 147.31245711204784 * 0.5 + 62.41077222582739 * 0.5 = 104.86161466893762
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-11-01 | 337 -> 341 | 104.86 | |
| 2026-10-31 | 334 -> 337 | 104.86 | |
| 2026-10-29 | 335 -> 334 | 104.86 | |
| 2026-10-24 | 331 -> 335 | 104.86 | |
| 2026-10-16 | 333 -> 331 | 104.86 | |
| 2026-10-14 | 334 -> 333 | 104.86 | |
| 2026-10-13 | 338 -> 334 | 102.35 -> 104.86 |
Akademgorodok Riichi Mahjong Tournament 2025: 57% -> 43% |
| 2026-10-10 | 337 -> 338 | 102.35 | |
| 2026-09-26 | 336 -> 337 | 102.35 | |
| 2026-09-23 | 337 -> 336 | 102.35 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 371 |
|
23/36 | 100% | 2.50 | CRR | Akademgorodok Riichi Mahjong Tournament 2026 | Novosibirsk | |
| 2 | 32 |
|
31/32 | 43% | 2.40 | CRR | Akademgorodok Riichi Mahjong Tournament 2025 | Novosibirsk |