Saifulin Andrei
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date Sept. 3, 2025 (latest changes Sept. 3, 2025).
81 place (493.41).
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 * 0.29 + 703.70 * 2.30 * 0.43 + 936.17 * 2.80 * 0.86 + 709.68 * 2.40 * 1 + 0) / (2.30 * 0.29 + 2.30 * 0.43 + 2.80 * 0.86 + 2.40 * 1 + 1) = 656.6103749007426
p2 = (936.17 * 2.80 * 0.86 + 709.68 * 2.40 * 1 + 703.70 * 2.30 * 0.43 + 370.37 * 2.30 * 0.29) / max_coefficients = 330.2027027027027
score = 656.6103749007426 * 0.5 + 330.2027027027027 * 0.5 = 493.40653880172266
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2025-07-14 | 60 -> 64 | 561.29 -> 544.24 |
Guardian of the Winds: 100% -> 86% |
| 2025-07-13 | 59 -> 60 | 561.29 | |
| 2025-07-12 | 58 -> 59 | 557.95 -> 561.29 |
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 | 86% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 3 | 704 |
|
9/28 | 43% | 2.30 | CRR | Chasing Kan | Yekaterinburg | |
| 4 | 370 |
|
18/28 | 29% | 2.30 | CRR | Finding Dora | Yekaterinburg | |
| 5 | 737 |
|
6/20 | 0% | 2.10 | CRR | 13 tiles until tempai | Yekaterinburg |