Bikbulatov Ruslan
From Chelyabinsk, Russia
Common russian riichi rating (CRR)
Rating date May 17, 2026 (latest changes May 17, 2026).
231 place (232.54).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (568.42 * 3.85 * 0.29 + 493.51 * 3.45 * 1 + 0 + 0 + 0) / (3.85 * 0.29 + 3.45 * 1 + 1 + 1 + 1) = 308.32410037424114
p2 = (493.51 * 3.45 * 1 + 568.42 * 3.85 * 0.29) / max_coefficients = 156.75622895622897
score = 308.32410037424114 * 0.5 + 156.75622895622897 * 0.5 = 232.54016466523507
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-17 | 232 -> 231 | 232.54 | |
| 2026-05-12 | 238 -> 232 | 232.54 | |
| 2026-05-11 | 236 -> 238 | 232.54 | |
| 2026-05-03 | 230 -> 236 | 232.02 -> 232.54 | |
| 2026-05-01 | 221 -> 230 | 251.31 -> 232.02 |
SPB Riichi Open 2024: 43% -> 29% |
| 2026-04-27 | 222 -> 221 | 251.31 | |
| 2026-04-19 | 210 -> 222 | 251.31 | |
| 2026-04-16 | 211 -> 210 | 251.31 | |
| 2026-04-13 | 214 -> 211 | 251.31 | |
| 2026-04-11 | 206 -> 214 | 251.31 |