Lepekhin Mikhail
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Jan. 5, 2025 (latest changes Jan. 5, 2025).
222 place (31.64).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (608.70 * 1.40 * 0.29 + 9.35 * 4 * 0.57 + 0 + 0 + 0) / (1.40 * 0.29 + 4 * 0.57 + 1 + 1 + 1) = 46.57924081624038
p2 = (608.70 * 1.40 * 0.29 + 9.35 * 4 * 0.57) / max_coefficients = 16.708517350157727
score = 46.57924081624038 * 0.5 + 16.708517350157727 * 0.5 = 31.643879083199053
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-01-04 | 221 -> 222 | 31.64 | |
| 2025-01-03 | 221 | 30.11 -> 31.64 |
SPB Riichi Open 2023: 71% -> 57% |
| 2024-12-29 | 220 -> 221 | 30.11 | |
| 2024-12-22 | 218 -> 220 | 42.71 -> 30.11 |
Fire cup 2023: 43% -> 29% |
| 2024-11-05 | 222 -> 218 | 42.71 | |
| 2024-11-04 | 217 -> 222 | 42.71 | |
| 2024-11-03 | 217 | 40.79 -> 42.71 |
SPB Riichi Open 2023: 86% -> 71% |
| 2024-10-27 | 216 -> 217 | 40.79 | |
| 2024-10-22 | 215 -> 216 | 52.27 -> 40.79 |
Fire cup 2023: 57% -> 43% |
| 2024-10-13 | 201 -> 215 | 52.61 -> 52.27 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 9 |
|
107/108 | 57% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 609 |
|
10/24 | 29% | 1.40 | CRR | Fire cup 2023 |
| 3 | 641 |
|
15/40 | 0% | 1.80 | CRR | Sun tournament |