Bikbulatov Ruslan
From Chelyabinsk, Russia
Common russian riichi rating (CRR)
Rating date July 21, 2026 (latest changes July 18, 2026).
271 place (208.65).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997
p1 = (568.42 * 3.85 * 0.14 + 493.51 * 3.45 * 1 + 0 + 0 + 0) / (3.85 * 0.14 + 3.45 * 1 + 1 + 1 + 1) = 287.89749955893893
p2 = (493.51 * 3.45 * 1 + 568.42 * 3.85 * 0.14) / max_coefficients = 129.4025790237773
score = 287.89749955893893 * 0.5 + 129.4025790237773 * 0.5 = 208.6500392913581
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-07-18 | 266 -> 271 | 208.65 | |
| 2026-07-14 | 267 -> 266 | 208.65 | |
| 2026-07-12 | 264 -> 267 | 208.65 | |
| 2026-07-11 | 261 -> 264 | 208.65 | |
| 2026-07-03 | 262 -> 261 | 208.65 | |
| 2026-07-01 | 251 -> 262 | 228.90 -> 208.65 |
SPB Riichi Open 2024: 29% -> 14% |
| 2026-06-27 | 252 -> 251 | 228.90 | |
| 2026-06-16 | 253 -> 252 | 228.90 | |
| 2026-06-15 | 254 -> 253 | 226.19 -> 228.90 | |
| 2026-06-14 | 234 -> 254 | 232.54 -> 226.19 |