Abakumov Artur
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date Aug. 3, 2025 (latest changes Aug. 3, 2025).
277 place (68.25).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35
p1 = (111.11 * 2.30 * 0.57 + 217.39 * 2.20 * 1 + 0 + 0 + 0) / (2.30 * 0.57 + 2.20 * 1 + 1 + 1 + 1) = 95.83342288102028
p2 = (217.39 * 2.20 * 1 + 111.11 * 2.30 * 0.57) / max_coefficients = 40.66970684039088
score = 95.83342288102028 * 0.5 + 40.66970684039088 * 0.5 = 68.25156486070559
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2025-06-25 | 268 -> 269 | 69.41 -> 67.87 |
Chasing Kan: 71% -> 57% |
| 2025-06-15 | 259 -> 268 | 70.03 -> 69.41 |
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 | 57% | 2.30 | CRR | Chasing Kan | Yekaterinburg |