Zakharenkov Maksim
From Saint Petersburg, Russia
EMA: 15990292
Common russian riichi rating (CRR)
Rating date Oct. 13, 2025 (latest changes Oct. 13, 2025).
280 place (43.72).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835
p1 = (195.65 * 2.10 * 0.43 + 73.68 * 3.85 * 0.86 + 0 + 0 + 0) / (2.10 * 0.43 + 3.85 * 0.86 + 1 + 1 + 1) = 58.23001585439788
p2 = (73.68 * 3.85 * 0.86 + 195.65 * 2.10 * 0.43) / max_coefficients = 29.216363811848705
score = 58.23001585439788 * 0.5 + 29.216363811848705 * 0.5 = 43.72318983312329
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-13 | 280 | 43.28 -> 43.72 | |
| 2025-09-30 | 278 -> 280 | 48.01 -> 43.28 |
Seihoku spring tournament 2024: 57% -> 43% |
| 2025-09-03 | 288 -> 278 | 48.01 | |
| 2025-09-01 | 288 | 49.26 -> 48.01 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 282 -> 288 | 49.26 | |
| 2025-08-26 | 283 -> 282 | 49.26 | |
| 2025-08-25 | 284 -> 283 | 49.26 | |
| 2025-08-04 | 284 | 49.09 -> 49.26 | |
| 2025-08-03 | 279 -> 284 | 49.09 | |
| 2025-08-02 | 278 -> 279 | 49.09 |