Grishhenko Sergei
From Korolyov, Russia
Internal rating (RR)
Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).
135 place (311.28).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (66.67 * 2 * 1 + 268.66 * 4.10 * 1 + 333.33 * 2.45 * 1 + 157.89 * 3.90 * 1 + 894.74 * 2.25 * 1) / (2 * 1 + 4.10 * 1 + 2.45 * 1 + 3.90 * 1 + 2.25 * 1) = 318.39727891156457
p2 = (894.74 * 2.25 * 1 + 268.66 * 4.10 * 1 + 333.33 * 2.45 * 1 + 157.89 * 3.90 * 1) / max_coefficients = 304.1545150501673
score = 318.39727891156457 * 0.5 + 304.1545150501673 * 0.5 = 311.2758969808659
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-09 | 136 -> 135 | 311.28 | |
| 2025-12-07 | 184 -> 136 | 188.36 -> 311.28 |
Winter Hatiko: 0% -> 100% |
| 2025-12-04 | 185 -> 184 | 188.36 | |
| 2025-11-30 | 186 -> 185 | 188.36 | |
| 2025-11-12 | 188 -> 186 | 188.36 | |
| 2025-11-04 | 187 -> 188 | 168.96 -> 188.36 |
XI Russian Championship: 0% -> 100% |
| 2025-11-01 | 187 | 168.71 -> 168.96 | |
| 2025-10-13 | 188 -> 187 | 166.53 -> 168.71 | |
| 2025-10-09 | 190 -> 188 | 166.53 | |
| 2025-10-04 | 192 -> 190 | 166.53 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 895 |
|
🥉 | 3/20 | 100% | 2.25 | RR | Winter Hatiko | Korolyov |
| 2 | 158 |
|
49/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 3 | 333 |
|
21/31 | 100% | 2.45 | RR | Agari Summer Tournament 2025 | Moscow | |
| 4 | 269 |
|
50/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 5 | 67 |
|
15/16 | 100% | 2.00 | RR | Random not fault | Moscow |