Vakhonin Stepan
From Saint Petersburg, Russia
EMA: 15990444
Common russian riichi rating (CRR)
Rating date March 6, 2023 (latest changes March 6, 2023).
75 place (321.70).
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 + 198.20 * 4.05 * 1 + 774.19 * 1.80 * 1 + 794.87 * 1.80 * 1 + 0) / (3.45 * 0.71 + 4.05 * 1 + 1.80 * 1 + 1.80 * 1 + 1) = 364.7694621405599
p2 = (794.87 * 1.80 * 1 + 774.19 * 1.80 * 1 + 198.20 * 4.05 * 1 + 173.33 * 3.45 * 0.71) / max_coefficients = 278.6371134020618
score = 364.7694621405599 * 0.5 + 278.6371134020618 * 0.5 = 321.70328777131084
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-02-25 | 103 -> 75 | 220.41 -> 321.70 |
Earth cup: 0% -> 100% |
| 2023-01-14 | 101 -> 103 | 220.41 | |
| 2023-01-06 | 103 -> 101 | 220.41 | |
| 2023-01-03 | 107 -> 103 | 220.41 | |
| 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 | |
| 2022-11-05 | 171 -> 85 | 64.46 -> 224.29 | |
| 2021-02-01 | 266 -> 171 | 65.65 -> 64.46 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 774 |
|
8/32 | 100% | 1.80 | CRR | Earth cup |
| 2 | 795 |
|
9/40 | 100% | 1.80 | CRR | Sun tournament |
| 3 | 198 |
|
90/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |
| 4 | 173 |
|
63/76 | 71% | 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 |