Ivanov Anton
From Ufa, Russia
Common russian riichi rating (CRR)
Rating date Oct. 10, 2025 (latest changes Oct. 9, 2025).
191 place (240.55).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (333.33 * 1.20 * 1 + 851.06 * 2.80 * 0.71 + 0 + 0 + 0) / (1.20 * 1 + 2.80 * 0.71 + 1 + 1 + 1) = 339.0558770588577
p2 = (851.06 * 2.80 * 0.71 + 333.33 * 1.20 * 1) / max_coefficients = 142.03783783783783
score = 339.0558770588577 * 0.5 + 142.03783783783783 * 0.5 = 240.54685744834774
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-10-09 | 192 -> 191 | 240.55 | |
2025-09-30 | 193 -> 192 | 240.55 | |
2025-09-19 | 194 -> 193 | 240.55 | |
2025-09-14 | 183 -> 194 | 267.55 -> 240.55 |
Guardian of the Winds: 86% -> 71% |
2025-09-12 | 185 -> 183 | 267.55 | |
2025-09-05 | 186 -> 185 | 267.55 | |
2025-09-03 | 188 -> 186 | 267.55 | |
2025-09-01 | 188 | 265.38 -> 267.55 | |
2025-08-31 | 184 -> 188 | 265.38 | |
2025-08-26 | 186 -> 184 | 265.38 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
---|---|---|---|---|---|---|---|---|---|
1 | 333 |
|
11/16 | 100% | 1.20 | CRR | Martenho's New Year's Eve tournament | Ufa | |
2 | 851 |
|
8/48 | 71% | 2.80 | RR | Guardian of the Winds | Yekaterinburg |