Abakumov Artur
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date Aug. 29, 2025 (latest changes Aug. 27, 2025).
276 place (66.85).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (111.11 * 2.30 * 0.43 + 217.39 * 2.20 * 1 + 0 + 0 + 0) / (2.30 * 0.43 + 2.20 * 1 + 1 + 1 + 1) = 95.02277804900918
p2 = (217.39 * 2.20 * 1 + 111.11 * 2.30 * 0.43) / max_coefficients = 38.670394736842105
score = 95.02277804900918 * 0.5 + 38.670394736842105 * 0.5 = 66.84658639292564
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-08-25 | 277 -> 276 | 68.45 -> 66.85 |
Chasing Kan: 57% -> 43% |
2025-08-04 | 277 | 68.25 -> 68.45 | |
2025-08-03 | 272 -> 277 | 68.25 | |
2025-08-02 | 271 -> 272 | 68.25 | |
2025-07-30 | 272 -> 271 | 68.25 | |
2025-07-26 | 269 -> 272 | 68.25 | |
2025-07-13 | 267 -> 269 | 68.25 | |
2025-07-12 | 267 | 67.87 -> 68.25 | |
2025-07-05 | 268 -> 267 | 67.87 | |
2025-07-03 | 269 -> 268 | 67.87 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
---|---|---|---|---|---|---|---|---|---|
1 | 217 |
|
19/24 | 100% | 2.20 | CRR | Tails, money, two renchans | Tyumen | |
2 | 111 |
|
25/28 | 43% | 2.30 | CRR | Chasing Kan | Yekaterinburg |