Petrushin Ivan

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date Jan. 3, 2023 (latest changes Jan. 3, 2023).

130 place (48.36).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.86) = 14.706995

p1 = (727.27 * 1.10 * 0.43 + 0 * 1.20 * 1 + 0 + 0 + 0) / (1.10 * 0.43 + 1.20 * 1 + 1 + 1 + 1) = 73.39889456401211

p2 = (727.27 * 1.10 * 0.43 + 0 * 1.20 * 1) / max_coefficients = 23.31407605700553

score = 73.39889456401211 * 0.5 + 23.31407605700553 * 0.5 = 48.356485310508816

Rating changes

Show

all results
Date Place Points Reason
2023-01-03 131 -> 130 76.32 -> 48.36

Winter tournament: 14% -> 0%

Summer tournament: 57% -> 43%
2022-12-19 131 76.16 -> 76.32
2022-12-18 129 -> 131 76.16
2022-12-03 177 -> 129 46.10 -> 76.16
2021-02-01 177 46.10

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 0 2022-01-05 16/16 100% 1.20 CRR Winter tournament
2 727 2021-07-03 4/12 43% 1.10 CRR Summer tournament
3 133 2021-01-03 14/16 0% 1.20 CRR Winter tournament
4 158 2019-12-15 17/20 0% 1.30 CRR Irkutsk Winter Tournament 2019