Kostyukovich Maksim
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date May 17, 2026 (latest changes May 17, 2026).
330 place (54.27).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (695.65 * 2.20 * 0.29 + 0 * 1.90 * 1 + 0 + 0 + 0) / (2.20 * 0.29 + 1.90 * 1 + 1 + 1 + 1) = 79.08959689176528
p2 = (695.65 * 2.20 * 0.29 + 0 * 1.90 * 1) / max_coefficients = 29.444444444444446
score = 79.08959689176528 * 0.5 + 29.444444444444446 * 0.5 = 54.26702066810486
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-17 | 331 -> 330 | 54.27 | |
| 2026-05-15 | 320 -> 331 | 78.22 -> 54.27 |
Tails, money, two renchans: 43% -> 29% |
| 2026-05-12 | 329 -> 320 | 78.22 | |
| 2026-05-11 | 324 -> 329 | 78.22 | |
| 2026-05-05 | 325 -> 324 | 78.22 | |
| 2026-05-03 | 317 -> 325 | 78.07 -> 78.22 | |
| 2026-05-01 | 318 -> 317 | 78.07 | |
| 2026-04-19 | 308 -> 318 | 78.07 | |
| 2026-04-11 | 306 -> 308 | 78.07 | |
| 2026-04-09 | 309 -> 306 | 78.07 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 0 |
|
20/20 | 100% | 1.90 | CRR | Riichi in country home | Megion | |
| 2 | 696 |
|
8/24 | 29% | 2.20 | CRR | Tails, money, two renchans | Tyumen |