Abakumov Artur
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date July 1, 2025 (latest changes June 27, 2025).
269 place (67.87).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
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 = 39.90881346267195
score = 95.83342288102028 * 0.5 + 39.90881346267195 * 0.5 = 67.87111817184612
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-06-25 | 268 -> 269 | 69.41 -> 67.87 |
Chasing Kan: 71% -> 57% |
2025-06-15 | 259 -> 268 | 70.03 -> 69.41 | |
2025-06-14 | 254 -> 259 | 70.03 | |
2025-06-11 | 259 -> 254 | 70.03 | |
2025-06-08 | 257 -> 259 | 70.03 | |
2025-05-17 | 254 -> 257 | 70.03 | |
2025-05-12 | 254 | 69.13 -> 70.03 | |
2025-05-03 | 250 -> 254 | 69.13 | |
2025-05-01 | 253 -> 250 | 69.13 | |
2025-04-27 | 247 -> 253 | 69.13 |
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 |