Isabaev Rustam
From Chelyabinsk, Russia
Common russian riichi rating (CRR)
Rating date Aug. 8, 2025 (latest changes Aug. 4, 2025).
283 place (52.69).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (210.53 * 2.10 * 0.14 + 407.41 * 2.30 * 0.29 + 0 + 0 + 0) / (2.10 * 0.14 + 2.30 * 0.29 + 1 + 1 + 1) = 83.61720408369553
p2 = (407.41 * 2.30 * 0.29 + 210.53 * 2.10 * 0.14) / max_coefficients = 21.76907894736842
score = 83.61720408369553 * 0.5 + 21.76907894736842 * 0.5 = 52.69314151553198
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-08-04 | 283 | 52.59 -> 52.69 | |
2025-08-03 | 278 -> 283 | 52.59 | |
2025-08-02 | 277 -> 278 | 52.59 | |
2025-07-30 | 278 -> 277 | 52.59 | |
2025-07-26 | 273 -> 278 | 52.59 | |
2025-07-13 | 270 -> 273 | 52.59 | |
2025-07-12 | 270 | 52.39 -> 52.59 | |
2025-07-05 | 267 -> 270 | 69.08 -> 52.39 |
Finding Dora: 43% -> 29% |
2025-06-27 | 267 | 74.44 -> 69.08 |
13 tiles until tempai: 29% -> 14% |
2025-06-22 | 266 -> 267 | 74.44 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
---|---|---|---|---|---|---|---|---|---|
1 | 407 |
|
17/28 | 29% | 2.30 | CRR | Finding Dora | Yekaterinburg | |
2 | 211 |
|
16/20 | 14% | 2.10 | CRR | 13 tiles until tempai | Yekaterinburg |