Petrushin Ivan

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date May 20, 2023 (latest changes May 20, 2023).

117 place (209.71).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 2.80 * 1 + 3.50 * 0.71) = 13.55005

p1 = (727.27 * 1.10 * 0.14 + 0 * 1.20 * 0.57 + 272.73 * 1.10 * 1 + 866.67 * 1 * 1 + 0) / (1.10 * 0.14 + 1.20 * 0.57 + 1.10 * 1 + 1 * 1 + 1) = 324.8877086995006

p2 = (866.67 * 1 * 1 + 272.73 * 1.10 * 1 + 727.27 * 1.10 * 0.14 + 0 * 1.20 * 0.57) / max_coefficients = 94.53765853262534

score = 324.8877086995006 * 0.5 + 94.53765853262534 * 0.5 = 209.71268361606298

Rating changes

Show

all results
Date Place Points Reason
2023-05-20 117 208.03 -> 209.71
2023-05-06 118 -> 117 208.03
2023-05-05 119 -> 118 201.26 -> 208.03

Winter tournament: 71% -> 57%
2023-05-03 118 -> 119 212.97 -> 201.26

Summer tournament: 29% -> 14%
2023-05-01 139 -> 118 80.68 -> 212.97

Spring Tournament Irkutsk 2023: 0% -> 100%
2023-04-22 137 -> 139 80.68
2023-03-20 138 -> 137 80.04 -> 80.68
2023-03-05 139 -> 138 77.65 -> 80.04

Winter tournament: 86% -> 71%
2023-03-03 137 -> 139 91.97 -> 77.65

Summer tournament: 43% -> 29%
2023-02-25 128 -> 137 91.97

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 867 2023-05-01 3/16 100% 1.00 CRR Spring Tournament Irkutsk 2023
2 273 2023-01-14 9/12 100% 1.10 CRR Survive after yakuman
3 0 2022-01-05 16/16 57% 1.20 CRR Winter tournament
4 727 2021-07-03 4/12 14% 1.10 CRR Summer tournament
5 133 2021-01-03 14/16 0% 1.20 CRR Winter tournament
6 158 2019-12-15 17/20 0% 1.30 CRR Irkutsk Winter Tournament 2019