Petrushin Ivan

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date Dec. 19, 2022 (latest changes Dec. 19, 2022).

131 place (76.32).

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

p1 = (133.33 * 1.20 * 0.14 + 727.27 * 1.10 * 0.57 + 0 * 1.20 * 1 + 0 + 0) / (1.20 * 0.14 + 1.10 * 0.57 + 1.20 * 1 + 1 + 1) = 119.99440002799986

p2 = (727.27 * 1.10 * 0.57 + 133.33 * 1.20 * 0.14 + 0 * 1.20 * 1) / max_coefficients = 32.63617074732126

score = 119.99440002799986 * 0.5 + 32.63617074732126 * 0.5 = 76.31528538766057

Rating changes

Show

all results
Date Place Points Reason
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 57% 1.10 CRR Summer tournament
3 133 2021-01-03 14/16 14% 1.20 CRR Winter tournament
4 158 2019-12-15 17/20 0% 1.30 CRR Irkutsk Winter Tournament 2019