Vakhonin Stepan
From Saint Petersburg, Russia
EMA: 15990444
Common russian riichi rating (CRR)
Rating date Feb. 19, 2023 (latest changes Feb. 19, 2023).
104 place (220.41).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 2.80 * 1) = 14.55
p1 = (173.33 * 3.45 * 0.71 + 794.87 * 1.80 * 1 + 198.20 * 4.05 * 1 + 0 + 0) / (3.45 * 0.71 + 1.80 * 1 + 4.05 * 1 + 1 + 1) = 257.9536150415902
p2 = (794.87 * 1.80 * 1 + 198.20 * 4.05 * 1 + 173.33 * 3.45 * 0.71) / max_coefficients = 182.86048109965637
score = 257.9536150415902 * 0.5 + 182.86048109965637 * 0.5 = 220.40704807062326
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-01-14 | 102 -> 104 | 220.41 | |
| 2023-01-06 | 104 -> 102 | 220.41 | |
| 2023-01-03 | 108 -> 104 | 220.41 | |
| 2022-12-19 | 109 -> 108 | 219.51 -> 220.41 | |
| 2022-12-18 | 106 -> 109 | 219.51 | |
| 2022-11-28 | 105 -> 106 | 218.43 -> 219.51 |
Saint Petersburg Open 2021: 100% -> 86% |
| 2022-11-06 | 86 -> 105 | 224.29 -> 218.43 | |
| 2022-08-27 | 93 -> 86 | 115.68 -> 224.29 |
Sun tournament: 0% -> 100% |
| 2022-08-20 | 91 -> 93 | 115.68 | |
| 2022-07-09 | 87 -> 91 | 115.68 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 795 |
|
9/40 | 100% | 1.80 | CRR | Sun tournament |
| 2 | 198 |
|
90/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |
| 3 | 173 |
|
63/76 | 71% | 3.45 | RR | Saint Petersburg Open 2021 |
| 4 | 222 |
|
50/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
| 5 | 0 |
|
40/40 | 0% | 2.90 | RR | Summer Cup 2019 |