Vakhonin Stepan
From Saint Petersburg, Russia
EMA: 15990444
Internal rating (RR)
Rating date Nov. 4, 2026 (latest changes Nov. 4, 2026).
51 place (593.51).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.40 * 1 + 3.40 * 1 + 3.40 * 1) = 14.91
p1 = (612.90 * 1.80 * 1 + 830.51 * 3.25 * 0.29 + 610.39 * 3.45 * 0.71 + 932.43 * 3.40 * 1 + 966.67 * 1.70 * 1 + 408.45 * 3.40 * 1 + 457.14 * 1.90 * 1) / (1.80 * 1 + 3.25 * 0.29 + 3.45 * 0.71 + 3.40 * 1 + 1.70 * 1 + 3.40 * 1 + 1.90 * 1) = 670.1451818332237
p2 = (932.43 * 3.40 * 1 + 966.67 * 1.70 * 1 + 610.39 * 3.45 * 0.71 + 408.45 * 3.40 * 1) / max_coefficients = 516.8698859825621
score = 670.1451818332237 * 0.5 + 516.8698859825621 * 0.5 = 593.5075339078928
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-11-04 | 51 | 585.12 -> 593.51 | |
| 2026-11-03 | 53 -> 51 | 585.12 | |
| 2026-11-02 | 52 -> 53 | 585.12 | |
| 2026-10-31 | 43 -> 52 | 608.11 -> 585.12 |
SPB Riichi Open 2025: 86% -> 71% Seihoku autumn tournament 2026: 0% -> 100% |
| 2026-10-16 | 41 -> 43 | 610.23 -> 608.11 |
White Wolf Cup: 43% -> 29% |
| 2026-10-15 | 44 -> 41 | 610.23 | |
| 2026-10-13 | 45 -> 44 | 610.23 | |
| 2026-09-06 | 32 -> 45 | 646.89 -> 610.23 |
Sunset Wolf Cup 2026: 0% -> 100% |
| 2026-09-03 | 35 -> 32 | 646.89 | |
| 2026-09-01 | 40 -> 35 | 630.70 -> 646.89 |
SPB Riichi Open 2024: 14% -> 0% |