Lepekhin Mikhail
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Feb. 12, 2024 (latest changes Feb. 12, 2024).
149 place (148.62).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 2.90 * 1) = 13.650060000000002
p1 = (641.03 * 1.80 * 0.57 + 608.70 * 1.40 * 1 + 9.35 * 4 * 1 + 0 + 0) / (1.80 * 0.57 + 1.40 * 1 + 4 * 1 + 1 + 1) = 183.7641721203723
p2 = (608.70 * 1.40 * 1 + 641.03 * 1.80 * 0.57 + 9.35 * 4 * 1) / max_coefficients = 113.46909830432979
score = 183.7641721203723 * 0.5 + 113.46909830432979 * 0.5 = 148.61663521235104
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-02-12 | 150 -> 149 | 148.62 | |
| 2024-01-20 | 152 -> 150 | 148.62 | |
| 2024-01-06 | 152 | 146.23 -> 148.62 | |
| 2024-01-05 | 153 -> 152 | 146.23 | |
| 2023-12-27 | 150 -> 153 | 158.78 -> 146.23 |
Sun tournament: 71% -> 57% |
| 2023-12-19 | 157 -> 150 | 158.78 | |
| 2023-12-12 | 159 -> 157 | 158.78 | |
| 2023-11-28 | 166 -> 159 | 158.78 | |
| 2023-11-26 | 160 -> 166 | 159.21 -> 158.78 | |
| 2023-11-06 | 160 | 156.75 -> 159.21 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 9 |
|
107/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 609 |
|
10/24 | 100% | 1.40 | CRR | Fire cup 2023 |
| 3 | 641 |
|
15/40 | 57% | 1.80 | CRR | Sun tournament |