Ivanov Anton
From Ufa, Russia
Common russian riichi rating (CRR)
Rating date March 15, 2026 (latest changes March 15, 2026).
219 place (213.68).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (851.06 * 2.80 * 0.29 + 333.33 * 1.20 * 0.71 + 434.78 * 1.60 * 1 + 0 + 0) / (2.80 * 0.29 + 1.20 * 0.71 + 1.60 * 1 + 1 + 1) = 316.1788203426971
p2 = (434.78 * 1.60 * 1 + 851.06 * 2.80 * 0.29 + 333.33 * 1.20 * 0.71) / max_coefficients = 111.18327759197325
score = 316.1788203426971 * 0.5 + 111.18327759197325 * 0.5 = 213.6810489673352
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-03-14 | 204 -> 219 | 243.98 -> 213.68 |
Guardian of the Winds: 43% -> 29% |
| 2026-03-12 | 205 -> 204 | 243.98 | |
| 2026-03-07 | 240 -> 205 | 172.94 -> 243.98 |
Spring Martenho get-together 2026: 0% -> 100% |
| 2026-03-01 | 241 -> 240 | 172.94 | |
| 2026-02-28 | 240 -> 241 | 176.08 -> 172.94 |
Martenho's New Year's Eve tournament: 86% -> 71% |
| 2026-02-23 | 229 -> 240 | 176.08 | |
| 2026-02-09 | 232 -> 229 | 176.08 | |
| 2026-02-04 | 233 -> 232 | 176.08 | |
| 2026-01-26 | 234 -> 233 | 176.08 | |
| 2026-01-25 | 232 -> 234 | 176.08 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 435 |
|
14/24 | 100% | 1.60 | CRR | Spring Martenho get-together 2026 | Ufa | |
| 2 | 333 |
|
11/16 | 71% | 1.20 | CRR | Martenho's New Year's Eve tournament | Ufa | |
| 3 | 851 |
|
8/48 | 29% | 2.80 | RR | Guardian of the Winds | Yekaterinburg |