Vakhonin Stepan
From Saint Petersburg, Russia
EMA: 15990444
Common russian riichi rating (CRR)
Rating date March 31, 2025 (latest changes March 30, 2025).
67 place (508.82).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (695.65 * 1.40 * 0.14 + 953.27 * 4 * 0.43 + 978.26 * 2.10 * 0.86 + 94.74 * 3.85 * 1 + 830.51 * 3.25 * 1) / (1.40 * 0.14 + 4 * 0.43 + 2.10 * 0.86 + 3.85 * 1 + 3.25 * 1) = 610.1261562162197
p2 = (830.51 * 3.25 * 1 + 978.26 * 2.10 * 0.86 + 953.27 * 4 * 0.43 + 94.74 * 3.85 * 1) / max_coefficients = 407.50536277602527
score = 610.1261562162197 * 0.5 + 407.50536277602527 * 0.5 = 508.8157594961225
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-03-30 | 63 -> 67 | 523.05 -> 508.82 |
Seihoku spring tournament 2024: 100% -> 86% |
2025-03-10 | 64 -> 63 | 523.05 | |
2025-03-03 | 61 -> 64 | 548.37 -> 523.05 |
SPB Riichi Open 2023: 57% -> 43% |
2025-03-02 | 57 -> 61 | 548.37 | |
2025-02-25 | 58 -> 57 | 549.85 -> 548.37 |
Earth cup: 14% -> 0% |
2025-02-22 | 58 | 550.32 -> 549.85 |
Fire cup 2023: 29% -> 14% |
2025-02-16 | 83 -> 58 | 439.18 -> 550.32 |
White Wolf Cup: 0% -> 100% |
2025-02-11 | 86 -> 83 | 439.18 | |
2025-02-02 | 83 -> 86 | 439.18 | |
2025-01-26 | 81 -> 83 | 439.18 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 831 |
|
11/60 | 100% | 3.25 | RR | White Wolf Cup |
2 | 95 |
|
87/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
3 | 978 |
|
2/47 | 86% | 2.10 | RR | Seihoku spring tournament 2024 |
4 | 953 |
|
6/108 | 43% | 4.00 | RR | SPB Riichi Open 2023 |
5 | 696 |
|
8/24 | 14% | 1.40 | CRR | Fire cup 2023 |
6 | 774 |
|
8/32 | 0% | 1.80 | CRR | Earth cup |
7 | 795 |
|
9/40 | 0% | 1.80 | CRR | Sun tournament |
8 | 198 |
|
90/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |
9 | 173 |
|
63/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |
10 | 222 |
|
50/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
11 | 0 |
|
40/40 | 0% | 2.90 | RR | Summer Cup 2019 |