Bikbulatov Ruslan
From Chelyabinsk, Russia
Common russian riichi rating (CRR)
Rating date Nov. 1, 2025 (latest changes Nov. 1, 2025).
148 place (325.01).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.25 * 1) = 14.3
p1 = (629.63 * 2.30 * 0.14 + 568.42 * 3.85 * 0.71 + 493.51 * 3.45 * 1 + 0 + 0) / (2.30 * 0.14 + 3.85 * 0.71 + 3.45 * 1 + 1 + 1) = 407.1804402182038
p2 = (493.51 * 3.45 * 1 + 568.42 * 3.85 * 0.71 + 629.63 * 2.30 * 0.14) / max_coefficients = 242.84825174825173
score = 407.1804402182038 * 0.5 + 242.84825174825173 * 0.5 = 325.01434598322777
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-01 | 136 -> 148 | 340.36 -> 325.01 |
SPB Riichi Open 2024: 86% -> 71% |
| 2025-10-25 | 137 -> 136 | 340.36 | |
| 2025-10-13 | 137 | 336.35 -> 340.36 | |
| 2025-10-04 | 139 -> 137 | 336.35 | |
| 2025-09-19 | 140 -> 139 | 336.35 | |
| 2025-09-15 | 141 -> 140 | 336.35 | |
| 2025-09-12 | 142 -> 141 | 336.35 | |
| 2025-09-05 | 139 -> 142 | 347.05 -> 336.35 |
Finding Dora: 29% -> 14% |
| 2025-09-03 | 140 -> 139 | 347.05 | |
| 2025-09-01 | 137 -> 140 | 357.77 -> 347.05 |
SPB Riichi Open 2024: 100% -> 86% |