Petrov Aleksandr
From Kirov, Russia
EMA: 15990461
Online rating
Rating date Feb. 3, 2023 (latest changes Feb. 3, 2023).
115 place (187.64).
how we calculated rating score
max_coefficients = (2.80 * 1 + 3.25 * 0.71 + 2.30 * 1) = 7.421475
p1 = (902.91 * 3.45 * 0.29 + 170.21 * 2.60 * 0.86 + 0 + 0 + 0) / (3.45 * 0.29 + 2.60 * 0.86 + 1 + 1 + 1) = 204.25723653772656
p2 = (902.91 * 3.45 * 0.29 + 170.21 * 2.60 * 0.86) / max_coefficients = 171.02799645623006
score = 204.25723653772656 * 0.5 + 171.02799645623006 * 0.5 = 187.6426164969783
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-01-23 | 169 -> 115 | 288.56 -> 187.64 | |
2021-02-01 | 169 | 288.56 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 170 |
|
40/48 | 86% | 2.60 | ONLINE | Demons of autumn wind |
2 | 903 |
|
11/104 | 29% | 3.45 | ONLINE | Riichi Online Open Team Cup |
3 | 385 |
|
25/40 | 0% | 2.60 | ONLINE | Demons of winter wind |
4 | 363 |
|
87/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup |
5 | 346 |
|
71/108 | 0% | 3.50 | ONLINE | Spring tournament |
6 | 49 |
|
137/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 |