Bikbulatov Ruslan
From Chelyabinsk, Russia
Internal rating (RR)
Rating date July 16, 2026 (latest changes July 14, 2026).
202 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 |
|---|---|---|---|
| 2026-07-14 | 203 -> 202 | 208.65 | |
| 2026-07-12 | 201 -> 203 | 208.65 | |
| 2026-07-03 | 202 -> 201 | 208.65 | |
| 2026-07-01 | 191 -> 202 | 228.90 -> 208.65 |
SPB Riichi Open 2024: 29% -> 14% |
| 2026-06-26 | 192 -> 191 | 228.90 | |
| 2026-06-16 | 193 -> 192 | 228.90 | |
| 2026-06-15 | 193 | 226.19 -> 228.90 | |
| 2026-06-14 | 171 -> 193 | 232.54 -> 226.19 | |
| 2026-06-13 | 173 -> 171 | 232.54 | |
| 2026-06-09 | 174 -> 173 | 232.54 |