Vakhonin Stepan
From Saint Petersburg, Russia
EMA: 15990444
Common russian riichi rating (CRR)
Rating date Dec. 19, 2022 (latest changes Dec. 19, 2022).
107 place (220.41).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.86) = 14.706995
p1 = (173.33 * 3.45 * 0.86 + 198.20 * 4.05 * 1 + 794.87 * 1.80 * 1 + 0 + 0) / (3.45 * 0.86 + 4.05 * 1 + 1.80 * 1 + 1 + 1) = 254.0965365487816
p2 = (794.87 * 1.80 * 1 + 198.20 * 4.05 * 1 + 173.33 * 3.45 * 0.86) / max_coefficients = 186.71523312546176
score = 254.0965365487816 * 0.5 + 186.71523312546176 * 0.5 = 220.40588483712168
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2022-12-19 | 108 -> 107 | 219.51 -> 220.41 | |
| 2022-12-18 | 105 -> 108 | 219.51 | |
| 2022-11-28 | 104 -> 105 | 218.43 -> 219.51 |
Saint Petersburg Open 2021: 100% -> 86% |
| 2022-11-06 | 85 -> 104 | 224.29 -> 218.43 | |
| 2022-09-18 | 171 -> 85 | 64.46 -> 224.29 | |
| 2021-02-01 | 266 -> 171 | 65.65 -> 64.46 | |
| 2020-02-01 | 266 | 65.65 |
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 | 86% | 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 |