Petrov Aleksandr

From Kirov, Russia

EMA: 15990461

Player page

Online rating

Rating date Jan. 7, 2023 (latest changes Jan. 7, 2023).

113 place (236.51).

max_coefficients = (2.80 * 1 + 3.25 * 0.86 + 2.30 * 1) = 7.885574999999999

p1 = (170.21 * 2.60 * 0.86 + 902.91 * 3.45 * 0.43 + 0 + 0 + 0) / (2.60 * 0.86 + 3.45 * 0.43 + 1 + 1 + 1) = 255.61156560257513

p2 = (902.91 * 3.45 * 0.43 + 170.21 * 2.60 * 0.86) / max_coefficients = 217.41217349400645

score = 255.61156560257513 * 0.5 + 217.41217349400645 * 0.5 = 236.5118695482908

Rating changes

Show

all results
Date Place Points Reason
2022-12-20 103 -> 113 270.54 -> 236.51

Demons of winter wind: 14% -> 0%
2022-12-18 104 -> 103 270.54
2022-12-15 105 -> 104 270.54
2022-12-12 106 -> 105 266.19 -> 270.54

Demons of autumn wind: 100% -> 86%
2022-11-25 108 -> 106 266.19
2022-11-21 111 -> 108 266.19
2022-11-16 97 -> 111 314.83 -> 266.19

Riichi Online Open Team Cup: 57% -> 43%
2022-11-14 101 -> 97 307.07 -> 314.83
2022-11-10 102 -> 101 307.07
2022-10-20 100 -> 102 316.44 -> 307.07

Demons of winter wind: 29% -> 14%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 170 2021-12-12 40/48 86% 2.60 ONLINE Demons of autumn wind
2 903 2021-05-16 11/104 43% 3.45 ONLINE Riichi Online Open Team Cup
3 385 2020-12-20 25/40 0% 2.60 ONLINE Demons of winter wind
4 363 2020-05-24 87/136 0% 3.69 ONLINE Riichi Online Open Team Cup
5 346 2020-05-10 71/108 0% 3.50 ONLINE Spring tournament
6 49 2020-02-16 137/144 0% 3.71 ONLINE Riichi Online Open Team Cup 2020