Saifulin Andrei
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date Sept. 15, 2025 (latest changes Sept. 15, 2025).
88 place (475.33).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (370.37 * 2.30 * 0.14 + 703.70 * 2.30 * 0.43 + 936.17 * 2.80 * 0.71 + 709.68 * 2.40 * 1 + 0) / (2.30 * 0.14 + 2.30 * 0.43 + 2.80 * 0.71 + 2.40 * 1 + 1) = 653.9647836246686
p2 = (936.17 * 2.80 * 0.71 + 709.68 * 2.40 * 1 + 703.70 * 2.30 * 0.43 + 370.37 * 2.30 * 0.14) / max_coefficients = 296.6918918918919
score = 653.9647836246686 * 0.5 + 296.6918918918919 * 0.5 = 475.3283377582802
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-09-14 | 80 -> 88 | 495.90 -> 475.33 |
Guardian of the Winds: 86% -> 71% |
2025-09-12 | 81 -> 80 | 495.90 | |
2025-09-05 | 81 | 493.41 -> 495.90 |
Finding Dora: 29% -> 14% |
2025-09-03 | 82 -> 81 | 493.41 | |
2025-09-01 | 83 -> 82 | 489.06 -> 493.41 | |
2025-08-31 | 76 -> 83 | 489.06 | |
2025-08-26 | 64 -> 76 | 539.54 -> 489.06 | |
2025-08-25 | 62 -> 64 | 545.89 -> 539.54 |
Chasing Kan: 57% -> 43% |
2025-08-04 | 63 -> 62 | 544.24 -> 545.89 | |
2025-08-03 | 64 -> 63 | 544.24 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
---|---|---|---|---|---|---|---|---|---|
1 | 710 |
|
10/32 | 100% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg | |
2 | 936 |
|
4/48 | 71% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
3 | 704 |
|
9/28 | 43% | 2.30 | CRR | Chasing Kan | Yekaterinburg | |
4 | 370 |
|
18/28 | 14% | 2.30 | CRR | Finding Dora | Yekaterinburg | |
5 | 737 |
|
6/20 | 0% | 2.10 | CRR | 13 tiles until tempai | Yekaterinburg |