Petrushin Ivan

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date June 17, 2023 (latest changes June 17, 2023).

128 place (207.48).

max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 2.80 * 1) = 14.221255

p1 = (866.67 * 1 * 1 + 727.27 * 1.10 * 0.14 + 0 * 1.20 * 0.57 + 272.73 * 1.10 * 1 + 0) / (1 * 1 + 1.10 * 0.14 + 1.20 * 0.57 + 1.10 * 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 = 90.07573522871223

score = 324.8877086995006 * 0.5 + 90.07573522871223 * 0.5 = 207.4817219641064

Rating changes

Show

all results
Date Place Points Reason
2023-06-12 128 205.72 -> 207.48
2023-06-11 116 -> 128 209.71 -> 205.72
2023-05-20 116 208.03 -> 209.71
2023-05-06 117 -> 116 208.03
2023-05-05 118 -> 117 201.26 -> 208.03

Winter tournament: 71% -> 57%
2023-05-03 117 -> 118 212.97 -> 201.26

Summer tournament: 29% -> 14%
2023-05-01 138 -> 117 80.68 -> 212.97

Spring Tournament Irkutsk 2023: 0% -> 100%
2023-04-22 136 -> 138 80.68
2023-03-20 137 -> 136 80.04 -> 80.68
2023-03-05 138 -> 137 77.65 -> 80.04

Winter tournament: 86% -> 71%

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