Abakumov Artur
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date Nov. 16, 2025 (latest changes Nov. 15, 2025).
277 place (53.52).
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 * 0.71 + 0 + 0 + 0) / (2.30 * 0.29 + 2.20 * 0.71 + 1 + 1 + 1) = 79.30084133902768
p2 = (217.39 * 2.20 * 0.71 + 111.11 * 2.30 * 0.29) / max_coefficients = 27.734448160535116
score = 79.30084133902768 * 0.5 + 27.734448160535116 * 0.5 = 53.5176447497814
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-15 | 276 -> 277 | 59.72 -> 53.52 |
Tails, money, two renchans: 86% -> 71% |
| 2025-11-10 | 277 -> 276 | 59.72 | |
| 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 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 217 |
|
19/24 | 71% | 2.20 | CRR | Tails, money, two renchans | Tyumen | |
| 2 | 111 |
|
25/28 | 29% | 2.30 | CRR | Chasing Kan | Yekaterinburg |