Abakumov Artur
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date Nov. 5, 2025 (latest changes Nov. 5, 2025).
277 place (59.72).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (111.11 * 2.30 * 0.29 + 217.39 * 2.20 * 0.86 + 0 + 0 + 0) / (2.30 * 0.29 + 2.20 * 0.86 + 1 + 1 + 1) = 87.12854495889209
p2 = (217.39 * 2.20 * 0.86 + 111.11 * 2.30 * 0.29) / max_coefficients = 32.30301003344482
score = 87.12854495889209 * 0.5 + 32.30301003344482 * 0.5 = 59.71577749616846
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-04 | 273 -> 277 | 60.45 -> 59.72 | |
| 2025-11-01 | 273 | 60.39 -> 60.45 | |
| 2025-10-25 | 271 -> 273 | 62.34 -> 60.39 |
Chasing Kan: 43% -> 29% |
| 2025-10-22 | 272 -> 271 | 62.34 | |
| 2025-10-13 | 272 | 61.78 -> 62.34 | |
| 2025-09-30 | 273 -> 272 | 61.78 | |
| 2025-09-15 | 272 -> 273 | 67.37 -> 61.78 |
Tails, money, two renchans: 100% -> 86% |
| 2025-09-03 | 282 -> 272 | 67.37 | |
| 2025-09-01 | 282 | 66.85 -> 67.37 | |
| 2025-08-31 | 276 -> 282 | 66.85 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 217 |
|
19/24 | 86% | 2.20 | CRR | Tails, money, two renchans | Tyumen | |
| 2 | 111 |
|
25/28 | 29% | 2.30 | CRR | Chasing Kan | Yekaterinburg |