Vakhonin Stepan
From Saint Petersburg, Russia
EMA: 15990444
Internal rating (RR)
Rating date April 12, 2024 (latest changes April 12, 2024).
15 place (571.24).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 4.20 * 0.57) = 13.19988
p1 = (198.20 * 4.05 * 0.14 + 953.27 * 4 * 1 + 978.26 * 2.10 * 1 + 0 + 0) / (4.05 * 0.14 + 4 * 1 + 2.10 * 1 + 1 + 1) = 689.2862965785952
p2 = (953.27 * 4 * 1 + 978.26 * 2.10 * 1 + 198.20 * 4.05 * 0.14) / max_coefficients = 453.196544211008
score = 689.2862965785952 * 0.5 + 453.196544211008 * 0.5 = 571.2414203948016
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-04-12 | 16 -> 15 | 560.24 -> 571.24 |
Moscow Riichi 2022: 29% -> 14% |
| 2024-03-30 | 49 -> 16 | 400.91 -> 560.24 |
Seihoku spring tournament 2024: 0% -> 100% |
| 2024-03-20 | 54 -> 49 | 400.91 | |
| 2024-03-10 | 46 -> 54 | 426.54 -> 400.91 | |
| 2024-03-06 | 46 | 417.53 -> 426.54 | |
| 2024-02-12 | 47 -> 46 | 404.41 -> 417.53 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-06 | 48 -> 47 | 396.78 -> 404.41 | |
| 2023-12-19 | 49 -> 48 | 396.78 | |
| 2023-12-12 | 51 -> 49 | 385.63 -> 396.78 |
Moscow Riichi 2022: 57% -> 43% |
| 2023-11-28 | 49 -> 51 | 406.81 -> 385.63 |
Saint Petersburg Open 2021: 14% -> 0% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 978 |
|
2/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 2 | 953 |
|
6/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 3 | 198 |
|
90/112 | 14% | 4.05 | RR | Moscow Riichi 2022 |
| 4 | 173 |
|
63/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |
| 5 | 222 |
|
50/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
| 6 | 0 |
|
40/40 | 0% | 2.90 | RR | Summer Cup 2019 |