Saifulin Andrei
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date Oct. 25, 2025 (latest changes Oct. 25, 2025).
88 place (470.64).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835
p1 = (370.37 * 2.30 * 0.14 + 703.70 * 2.30 * 0.29 + 936.17 * 2.80 * 0.71 + 709.68 * 2.40 * 1 + 0) / (2.30 * 0.14 + 2.30 * 0.29 + 2.80 * 0.71 + 2.40 * 1 + 1) = 651.4042049415738
p2 = (936.17 * 2.80 * 0.71 + 709.68 * 2.40 * 1 + 703.70 * 2.30 * 0.29 + 370.37 * 2.30 * 0.14) / max_coefficients = 289.88138191135994
score = 651.4042049415738 * 0.5 + 289.88138191135994 * 0.5 = 470.6427934264668
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-25 | 87 -> 88 | 479.98 -> 470.64 |
Chasing Kan: 43% -> 29% |
| 2025-10-13 | 85 -> 87 | 475.33 -> 479.98 | |
| 2025-10-04 | 86 -> 85 | 475.33 | |
| 2025-09-30 | 87 -> 86 | 475.33 | |
| 2025-09-26 | 88 -> 87 | 475.33 | |
| 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 |
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 | 29% | 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 |