Nikonenko Yaroslav
From Barnaul, Russia
Common russian riichi rating (CRR)
Rating date Aug. 16, 2026 (latest changes Aug. 16, 2026).
256 place (223.12).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 15.459999999999999
p1 = (516.13 * 2.40 * 0.57 + 210.53 * 3.90 * 1 + 457.14 * 2.50 * 1 + 0 + 0) / (2.40 * 0.57 + 3.90 * 1 + 2.50 * 1 + 1 + 1) = 273.4225327897038
p2 = (457.14 * 2.50 * 1 + 210.53 * 3.90 * 1 + 516.13 * 2.40 * 0.57) / max_coefficients = 172.8143596377749
score = 273.4225327897038 * 0.5 + 172.8143596377749 * 0.5 = 223.11844621373933
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-08-16 | 257 -> 256 | 223.12 | |
| 2026-08-15 | 257 | 222.49 -> 223.12 | |
| 2026-08-13 | 250 -> 257 | 232.28 -> 222.49 |
Akademgorodok Riichi Mahjong Tournament 2025: 71% -> 57% |
| 2026-08-04 | 252 -> 250 | 232.28 | |
| 2026-08-03 | 254 -> 252 | 232.28 | |
| 2026-08-02 | 251 -> 254 | 232.28 | |
| 2026-07-26 | 252 -> 251 | 232.28 | |
| 2026-07-25 | 251 -> 252 | 232.28 | |
| 2026-07-18 | 248 -> 251 | 232.28 | |
| 2026-07-17 | 249 -> 248 | 232.28 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 457 |
|
20/36 | 100% | 2.50 | CRR | Akademgorodok Riichi Mahjong Tournament 2026 | Novosibirsk | |
| 2 | 211 |
|
46/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 3 | 516 |
|
16/32 | 57% | 2.40 | CRR | Akademgorodok Riichi Mahjong Tournament 2025 | Novosibirsk | |
| 4 | 933 |
|
🥈 | 2/16 | 0% | 1.60 | CRR | Akademgorodok: Riichi Mahjong Tournament 2024 | Novosibirsk |