Grashhenko Artem
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Jan. 25, 2026 (latest changes Jan. 25, 2026).
283 place (90.99).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (565.22 * 2.10 * 0.29 + 254.90 * 3.05 * 0.43 + 0 + 0 + 0) / (2.10 * 0.29 + 3.05 * 0.43 + 1 + 1 + 1) = 137.00888490381482
p2 = (565.22 * 2.10 * 0.29 + 254.90 * 3.05 * 0.43) / max_coefficients = 44.971906354515056
score = 137.00888490381482 * 0.5 + 44.971906354515056 * 0.5 = 90.99039562916494
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-25 | 284 -> 283 | 90.99 | |
| 2026-01-19 | 285 -> 284 | 90.99 | |
| 2026-01-07 | 284 -> 285 | 90.99 | |
| 2026-01-03 | 281 -> 284 | 90.99 | |
| 2025-12-27 | 275 -> 281 | 90.99 | |
| 2025-12-09 | 272 -> 275 | 99.51 -> 90.99 |
Agari Summer Tournament 2024: 57% -> 43% |
| 2025-12-07 | 269 -> 272 | 99.51 | |
| 2025-12-06 | 263 -> 269 | 99.51 | |
| 2025-11-30 | 259 -> 263 | 116.31 -> 99.51 |
Seihoku spring tournament 2024: 43% -> 29% |
| 2025-11-25 | 260 -> 259 | 116.31 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 255 |
|
39/52 | 43% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 2 | 565 |
|
21/47 | 29% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 3 | 455 |
|
13/23 | 0% | 2.10 | CRR | Mushroom League | Moscow |