Laptev Alexander
From Kirov, Russia
EMA: 15990462
Common russian riichi rating (CRR)
Rating date Feb. 1, 2020 (latest changes Feb. 1, 2020).
172 place (280.50).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.85 * 1 + 3.45 * 1) = 15.55
p1 = (631.58 * 2.10 * 1 + 304.35 * 2.50 * 1 + 444.44 * 2.60 * 1 + 0 + 0) / (2.10 * 1 + 2.50 * 1 + 2.60 * 1 + 1 + 1) = 352.47282608695656
p2 = (631.58 * 2.10 * 1 + 444.44 * 2.60 * 1 + 304.35 * 2.50 * 1) / max_coefficients = 208.5369774919614
score = 352.47282608695656 * 0.5 + 208.5369774919614 * 0.5 = 280.504901789459
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2020-02-01 | 172 | 280.50 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 444 |
|
16/28 | 100% | 2.60 | RR | And yet the sinner collects tanyao |
| 2 | 304 |
|
17/24 | 100% | 2.50 | RR | Toi-Toi-man Tournament |
| 3 | 632 |
|
8/20 | 100% | 2.10 | RR | Fuyu Shanten 2019 |