Vakhonin Stepan
From Saint Petersburg, Russia
EMA: 15990444
Common russian riichi rating (CRR)
Rating date April 19, 2026 (latest changes April 16, 2026).
24 place (671.62).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (94.74 * 3.85 * 0.43 + 830.51 * 3.25 * 0.71 + 888.89 * 2 * 1 + 610.39 * 3.45 * 1 + 932.43 * 3.40 * 1 + 966.67 * 1.70 * 1) / (3.85 * 0.43 + 3.25 * 0.71 + 2 * 1 + 3.45 * 1 + 3.40 * 1 + 1.70 * 1) = 742.4499460630502
p2 = (932.43 * 3.40 * 1 + 610.39 * 3.45 * 1 + 830.51 * 3.25 * 0.71 + 888.89 * 2 * 1) / max_coefficients = 600.7953177257526
score = 742.4499460630502 * 0.5 + 600.7953177257526 * 0.5 = 671.6226318944014
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-04-16 | 22 -> 24 | 685.88 -> 671.62 |
White Wolf Cup: 86% -> 71% |
| 2026-04-11 | 24 -> 22 | 671.71 -> 685.88 |
Seihoku spring tournament 2026: 0% -> 100% |
| 2026-04-05 | 22 -> 24 | 671.71 | |
| 2026-04-02 | 24 -> 22 | 671.71 | |
| 2026-03-30 | 24 | 674.59 -> 671.71 |
Seihoku spring tournament 2024: 14% -> 0% |
| 2026-03-10 | 23 -> 24 | 674.59 | |
| 2026-03-01 | 29 -> 23 | 662.38 -> 674.59 |
SPB Riichi Open 2024: 57% -> 43% |
| 2026-02-23 | 64 -> 29 | 529.08 -> 662.38 |
White Wolf Cup 2026: 0% -> 100% |
| 2026-02-16 | 55 -> 64 | 546.26 -> 529.08 |
White Wolf Cup: 100% -> 86% |
| 2026-02-13 | 57 -> 55 | 546.26 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 967 |
|
🥈 | 2/31 | 100% | 1.70 | RR | Seihoku spring tournament 2026 | Saint Petersburg |
| 2 | 932 |
|
6/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 3 | 610 |
|
31/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 4 | 889 |
|
🥉 | 3/19 | 100% | 2.00 | CRR | Tonpu-master | Saint Petersburg |
| 5 | 831 |
|
11/60 | 71% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 6 | 95 |
|
87/96 | 43% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 7 | 978 |
|
🥈 | 2/47 | 0% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg |
| 8 | 953 |
|
6/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 9 | 696 |
|
8/24 | 0% | 1.40 | CRR | Fire cup 2023 | Saint Petersburg | |
| 10 | 774 |
|
8/32 | 0% | 1.80 | CRR | Earth cup | Saint Petersburg | |
| 11 | 795 |
|
9/40 | 0% | 1.80 | CRR | Sun tournament | Saint Petersburg | |
| 12 | 198 |
|
90/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 13 | 173 |
|
63/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg | |
| 14 | 222 |
|
50/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 | Saint Petersburg | |
| 15 | 0 |
|
40/40 | 0% | 2.90 | RR | Summer Cup 2019 | Saint Petersburg |