Zaviyalov Anton
From Kirov, Russia
Internal rating (RR)
Rating date Jan. 6, 2026 (latest changes Jan. 1, 2026).
172 place (234.84).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (168.22 * 4.60 * 0.43 + 426.97 * 3.75 * 0.71 + 406.78 * 3.25 * 1 + 0 + 0) / (4.60 * 0.43 + 3.75 * 0.71 + 3.25 * 1 + 1 + 1) = 282.5573461506022
p2 = (406.78 * 3.25 * 1 + 426.97 * 3.75 * 0.71 + 168.22 * 4.60 * 0.43) / max_coefficients = 187.11505016722407
score = 282.5573461506022 * 0.5 + 187.11505016722407 * 0.5 = 234.83619815891313
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-13 | 170 -> 172 | 246.19 -> 234.84 |
Moscow Riichi 2024: 86% -> 71% |
| 2025-12-07 | 165 -> 170 | 246.19 | |
| 2025-11-12 | 165 | 246.28 -> 246.19 |
X Russian Championship: 57% -> 43% |
| 2025-11-04 | 159 -> 165 | 251.05 -> 246.28 | |
| 2025-11-01 | 159 | 250.67 -> 251.05 | |
| 2025-10-13 | 156 -> 159 | 258.40 -> 250.67 |
Moscow Riichi 2024: 100% -> 86% |
| 2025-09-12 | 158 -> 156 | 258.89 -> 258.40 |
X Russian Championship: 71% -> 57% |
| 2025-09-10 | 159 -> 158 | 258.89 | |
| 2025-09-03 | 160 -> 159 | 258.89 | |
| 2025-09-01 | 162 -> 160 | 255.80 -> 258.89 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 407 |
|
36/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 2 | 427 |
|
52/90 | 71% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 3 | 168 |
|
90/108 | 43% | 4.60 | RR | X Russian Championship | Perm | |
| 4 | 560 |
|
34/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm |