Zaviyalov Anton
From Kirov, Russia
Common russian riichi rating (CRR)
Rating date Sept. 14, 2025 (latest changes Sept. 14, 2025).
154 place (311.65).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (168.22 * 4.60 * 0.57 + 426.97 * 3.75 * 1 + 526.32 * 1.50 * 1 + 406.78 * 3.25 * 1 + 0) / (4.60 * 0.57 + 3.75 * 1 + 1.50 * 1 + 3.25 * 1 + 1) = 342.5659029520697
p2 = (426.97 * 3.75 * 1 + 406.78 * 3.25 * 1 + 526.32 * 1.50 * 1 + 168.22 * 4.60 * 0.57) / max_coefficients = 280.729054054054
score = 342.5659029520697 * 0.5 + 280.729054054054 * 0.5 = 311.64747850306185
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-14 | 155 -> 154 | 311.65 | |
| 2025-09-12 | 155 | 310.90 -> 311.65 |
X Russian Championship: 71% -> 57% |
| 2025-09-10 | 157 -> 155 | 310.90 | |
| 2025-09-03 | 159 -> 157 | 310.90 | |
| 2025-09-01 | 159 | 307.11 -> 310.90 | |
| 2025-08-31 | 157 -> 159 | 307.11 | |
| 2025-08-09 | 158 -> 157 | 307.11 | |
| 2025-08-04 | 160 -> 158 | 305.74 -> 307.11 | |
| 2025-08-03 | 154 -> 160 | 305.74 | |
| 2025-07-30 | 155 -> 154 | 305.74 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 407 |
|
36/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 2 | 526 |
|
10/20 | 100% | 1.50 | CRR | Dirty Riichi | Kirov | |
| 3 | 427 |
|
52/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 4 | 168 |
|
90/108 | 57% | 4.60 | RR | X Russian Championship | Perm | |
| 5 | 560 |
|
34/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 6 | 467 |
|
9/16 | 0% | 1.20 | CRR | Vyatka rooster | Kirov |