Grishhenko Sergei
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date April 4, 2026 (latest changes April 4, 2026).
119 place (393.12).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (473.68 * 1.50 * 1 + 66.67 * 2 * 1 + 268.66 * 4.10 * 1 + 333.33 * 2.45 * 1 + 157.89 * 3.90 * 1 + 894.74 * 2.25 * 1 + 256.76 * 3.40 * 1 + 901.96 * 2.30 * 1) / (1.50 * 1 + 2 * 1 + 4.10 * 1 + 2.45 * 1 + 3.90 * 1 + 2.25 * 1 + 3.40 * 1 + 2.30 * 1) = 380.7511415525114
p2 = (901.96 * 2.30 * 1 + 894.74 * 2.25 * 1 + 268.66 * 4.10 * 1 + 256.76 * 3.40 * 1) / max_coefficients = 405.49364548494987
score = 380.7511415525114 * 0.5 + 405.49364548494987 * 0.5 = 393.12239351873063
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-03-30 | 120 -> 119 | 393.12 | |
| 2026-03-26 | 121 -> 120 | 393.12 | |
| 2026-03-23 | 122 -> 121 | 393.12 | |
| 2026-03-21 | 120 -> 122 | 393.12 | |
| 2026-03-14 | 161 -> 120 | 320.47 -> 393.12 |
"Furin" club tournament: for the anniversary: 0% -> 100% |
| 2026-03-12 | 162 -> 161 | 320.47 | |
| 2026-03-07 | 160 -> 162 | 320.47 | |
| 2026-03-01 | 163 -> 160 | 320.47 | |
| 2026-02-23 | 159 -> 163 | 321.63 -> 320.47 |
White Wolf Cup 2026: 0% -> 100% |
| 2026-02-09 | 160 -> 159 | 321.63 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 902 |
|
6/52 | 100% | 2.30 | CRR | "Furin" club tournament: for the anniversary | Moscow | |
| 2 | 257 |
|
56/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 3 | 895 |
|
🥉 | 3/20 | 100% | 2.25 | RR | Winter Hatiko | Korolyov |
| 4 | 158 |
|
49/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 5 | 333 |
|
21/31 | 100% | 2.45 | RR | Agari Summer Tournament 2025 | Moscow | |
| 6 | 269 |
|
50/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 7 | 67 |
|
15/16 | 100% | 2.00 | RR | Random not fault | Moscow | |
| 8 | 474 |
|
11/20 | 100% | 1.50 | CRR | HaTiKo | Korolyov |