Vakhonin Stepan
From Saint Petersburg, Russia
EMA: 15990444
Common russian riichi rating (CRR)
Rating date Oct. 12, 2023 (latest changes Oct. 12, 2023).
16 place (595.28).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (173.33 * 3.45 * 0.14 + 198.20 * 4.05 * 0.57 + 774.19 * 1.80 * 1 + 695.65 * 1.40 * 1 + 794.87 * 1.80 * 0.86 + 953.27 * 4 * 1) / (3.45 * 0.14 + 4.05 * 0.57 + 1.80 * 1 + 1.40 * 1 + 1.80 * 0.86 + 4 * 1) = 688.3974872629373
p2 = (953.27 * 4 * 1 + 774.19 * 1.80 * 1 + 794.87 * 1.80 * 0.86 + 695.65 * 1.40 * 1) / max_coefficients = 502.1593220338983
score = 688.3974872629373 * 0.5 + 502.1593220338983 * 0.5 = 595.2784046484178
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-10-12 | 19 -> 16 | 582.01 -> 595.28 |
Moscow Riichi 2022: 71% -> 57% |
| 2023-09-28 | 19 | 572.42 -> 582.01 |
Saint Petersburg Open 2021: 29% -> 14% |
| 2023-09-06 | 20 -> 19 | 572.42 | |
| 2023-09-03 | 53 -> 20 | 404.31 -> 572.42 |
SPB Riichi Open 2023: 0% -> 100% |
| 2023-08-27 | 51 -> 53 | 416.02 -> 404.31 |
Sun tournament: 100% -> 86% |
| 2023-08-12 | 55 -> 51 | 403.96 -> 416.02 |
Moscow Riichi 2022: 86% -> 71% |
| 2023-07-28 | 55 | 396.05 -> 403.96 |
Saint Petersburg Open 2021: 43% -> 29% |
| 2023-07-20 | 58 -> 55 | 396.05 | |
| 2023-07-09 | 59 -> 58 | 396.05 | |
| 2023-07-06 | 60 -> 59 | 396.05 |
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 | 86% | 1.80 | CRR | Sun tournament |
| 5 | 198 |
|
90/112 | 57% | 4.05 | RR | Moscow Riichi 2022 |
| 6 | 173 |
|
63/76 | 14% | 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 |