Vakhonin Stepan
From Saint Petersburg, Russia
EMA: 15990444
Common russian riichi rating (CRR)
Rating date Feb. 12, 2024 (latest changes Feb. 12, 2024).
11 place (641.37).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 2.90 * 1) = 13.650060000000002
p1 = (198.20 * 4.05 * 0.29 + 794.87 * 1.80 * 0.57 + 774.19 * 1.80 * 1 + 695.65 * 1.40 * 1 + 953.27 * 4 * 1) / (4.05 * 0.29 + 1.80 * 0.57 + 1.80 * 1 + 1.40 * 1 + 4 * 1) = 770.0526497759068
p2 = (953.27 * 4 * 1 + 774.19 * 1.80 * 1 + 695.65 * 1.40 * 1 + 794.87 * 1.80 * 0.57) / max_coefficients = 512.6775999519415
score = 770.0526497759068 * 0.5 + 512.6775999519415 * 0.5 = 641.3651248639242
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-02-12 | 13 -> 11 | 624.76 -> 641.37 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-06 | 14 -> 13 | 613.97 -> 624.76 | |
| 2023-12-27 | 12 -> 14 | 621.87 -> 613.97 |
Sun tournament: 71% -> 57% |
| 2023-12-19 | 13 -> 12 | 621.87 | |
| 2023-12-18 | 15 -> 13 | 621.87 | |
| 2023-12-12 | 20 -> 15 | 607.41 -> 621.87 |
Moscow Riichi 2022: 57% -> 43% |
| 2023-11-28 | 21 -> 20 | 595.71 -> 607.41 |
Saint Petersburg Open 2021: 14% -> 0% |
| 2023-11-26 | 17 -> 21 | 597.50 -> 595.71 | |
| 2023-11-20 | 18 -> 17 | 597.50 | |
| 2023-11-06 | 18 | 587.14 -> 597.50 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 953 |
|
6/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 696 |
|
8/24 | 100% | 1.40 | CRR | Fire cup 2023 |
| 3 | 774 |
|
8/32 | 100% | 1.80 | CRR | Earth cup |
| 4 | 795 |
|
9/40 | 57% | 1.80 | CRR | Sun tournament |
| 5 | 198 |
|
90/112 | 29% | 4.05 | RR | Moscow Riichi 2022 |
| 6 | 173 |
|
63/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |
| 7 | 222 |
|
50/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
| 8 | 0 |
|
40/40 | 0% | 2.90 | RR | Summer Cup 2019 |