Abakumov Artur
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date May 21, 2025 (latest changes May 19, 2025).
257 place (70.03).
how we calculated rating score
max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266
p1 = (111.11 * 2.30 * 0.71 + 217.39 * 2.20 * 1 + 0 + 0 + 0) / (2.30 * 0.71 + 2.20 * 1 + 1 + 1 + 1) = 96.56738600211312
p2 = (217.39 * 2.20 * 1 + 111.11 * 2.30 * 0.71) / max_coefficients = 43.494687566232635
score = 96.56738600211312 * 0.5 + 43.494687566232635 * 0.5 = 70.03103678417288
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
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 | |
2025-04-26 | 245 -> 247 | 69.13 | |
2025-04-25 | 245 | 70.61 -> 69.13 |
Chasing Kan: 86% -> 71% |
2025-04-22 | 248 -> 245 | 70.61 | |
2025-04-13 | 245 -> 248 | 70.61 | |
2025-03-29 | 239 -> 245 | 70.61 |
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 | 71% | 2.30 | CRR | Chasing Kan | Yekaterinburg |