Ivanov Anton
From Ufa, Russia
Common russian riichi rating (CRR)
Rating date June 29, 2026 (latest changes June 29, 2026).
284 place (172.52).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997
p1 = (851.06 * 2.80 * 0.14 + 333.33 * 1.20 * 0.43 + 434.78 * 1.60 * 1 + 0 + 0) / (2.80 * 0.14 + 1.20 * 0.43 + 1.60 * 1 + 1 + 1) = 267.50161703334186
p2 = (434.78 * 1.60 * 1 + 851.06 * 2.80 * 0.14 + 333.33 * 1.20 * 0.43) / max_coefficients = 77.54022541255969
score = 267.50161703334186 * 0.5 + 77.54022541255969 * 0.5 = 172.5209212229508
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-06-29 | 282 -> 284 | 175.56 -> 172.52 |
Martenho's New Year's Eve tournament: 57% -> 43% |
| 2026-06-15 | 284 -> 282 | 174.09 -> 175.56 | |
| 2026-06-14 | 267 -> 284 | 177.54 -> 174.09 | |
| 2026-06-13 | 270 -> 267 | 177.54 | |
| 2026-06-09 | 271 -> 270 | 177.54 | |
| 2026-06-04 | 273 -> 271 | 177.54 | |
| 2026-05-31 | 267 -> 273 | 177.54 | |
| 2026-05-25 | 268 -> 267 | 177.54 | |
| 2026-05-23 | 269 -> 268 | 177.54 | |
| 2026-05-17 | 267 -> 269 | 177.54 |
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 | 43% | 1.20 | CRR | Martenho's New Year's Eve tournament | Ufa | |
| 3 | 851 |
|
8/48 | 14% | 2.80 | RR | Guardian of the Winds | Yekaterinburg |