Grishhenko Sergei
From Korolyov, Russia
Internal rating (RR)
Rating date Aug. 31, 2026 (latest changes Aug. 31, 2026).
116 place (398.78).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (66.67 * 2 * 0.71 + 268.66 * 4.10 * 0.71 + 333.33 * 2.45 * 0.86 + 157.89 * 3.90 * 1 + 894.74 * 2.25 * 1 + 256.76 * 3.40 * 1 + 259.26 * 2.45 * 1 + 559.44 * 4.71 * 1 + 444.44 * 2.45 * 1) / (2 * 0.71 + 4.10 * 0.71 + 2.45 * 0.86 + 3.90 * 1 + 2.25 * 1 + 3.40 * 1 + 2.45 * 1 + 4.71 * 1 + 2.45 * 1) = 368.619819749484
p2 = (559.44 * 4.71 * 1 + 894.74 * 2.25 * 1 + 444.44 * 2.45 * 1 + 256.76 * 3.40 * 1) / max_coefficients = 428.94159636599613
score = 368.619819749484 * 0.5 + 428.94159636599613 * 0.5 = 398.78070805774007
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-08-31 | 116 | 398.09 -> 398.78 | |
| 2026-08-16 | 111 -> 116 | 398.09 | |
| 2026-08-15 | 113 -> 111 | 397.69 -> 398.09 |
13 bloody tiles: 86% -> 71% |
| 2026-08-13 | 114 -> 113 | 397.69 | |
| 2026-08-08 | 114 | 396.07 -> 397.69 |
Random not fault: 86% -> 71% |
| 2026-08-03 | 115 -> 114 | 396.07 | |
| 2026-08-02 | 117 -> 115 | 385.00 -> 396.07 |
Ivanovo Babayka 2026: 0% -> 100% |
| 2026-07-14 | 118 -> 117 | 385.00 | |
| 2026-07-13 | 119 -> 118 | 384.84 -> 385.00 |
Agari Summer Tournament 2025: 100% -> 86% |
| 2026-07-12 | 116 -> 119 | 384.84 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 444 |
|
16/28 | 100% | 2.45 | RR | Ivanovo Babayka 2026 | Ivanovo | |
| 2 | 559 |
|
64/144 | 100% | 4.71 | RR | XII Russian Championship | Samara | |
| 3 | 259 |
|
21/28 | 100% | 2.45 | RR | Hatiko under the sakura | Korolyov | |
| 4 | 257 |
|
56/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 5 | 895 |
|
🥉 | 3/20 | 100% | 2.25 | RR | Winter Hatiko | Korolyov |
| 6 | 158 |
|
49/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 7 | 333 |
|
21/31 | 86% | 2.45 | RR | Agari Summer Tournament 2025 | Moscow | |
| 8 | 269 |
|
50/68 | 71% | 4.10 | RR | 13 bloody tiles | Perm | |
| 9 | 67 |
|
15/16 | 71% | 2.00 | RR | Random not fault | Moscow |