Zaviyalov Anton
From Kirov, Russia
Internal rating (RR)
Rating date Aug. 8, 2025 (latest changes Aug. 4, 2025).
158 place (255.80).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (168.22 * 4.60 * 0.71 + 426.97 * 3.75 * 1 + 406.78 * 3.25 * 1 + 0 + 0) / (4.60 * 0.71 + 3.75 * 1 + 3.25 * 1 + 1 + 1) = 282.92057972713167
p2 = (426.97 * 3.75 * 1 + 406.78 * 3.25 * 1 + 168.22 * 4.60 * 0.71) / max_coefficients = 228.67763157894734
score = 282.92057972713167 * 0.5 + 228.67763157894734 * 0.5 = 255.7991056530395
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-04 | 157 -> 158 | 254.68 -> 255.80 | |
| 2025-08-03 | 151 -> 157 | 254.68 | |
| 2025-07-30 | 152 -> 151 | 254.68 | |
| 2025-07-13 | 150 -> 152 | 254.68 | |
| 2025-07-12 | 153 -> 150 | 253.18 -> 254.68 |
X Russian Championship: 86% -> 71% |
| 2025-07-10 | 154 -> 153 | 253.18 | |
| 2025-07-03 | 155 -> 154 | 253.18 | |
| 2025-06-15 | 142 -> 155 | 256.58 -> 253.18 | |
| 2025-06-11 | 149 -> 142 | 256.58 | |
| 2025-06-08 | 148 -> 149 | 256.58 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 407 |
|
36/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 2 | 427 |
|
52/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 3 | 168 |
|
90/108 | 71% | 4.60 | RR | X Russian Championship | Perm | |
| 4 | 560 |
|
34/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm |