Petrushin Ivan

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 5, 2023 (latest changes Nov. 5, 2023).

154 place (176.11).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75

p1 = (0 * 1.20 * 0.14 + 272.73 * 1.10 * 1 + 866.67 * 1 * 1 + 0 + 0) / (1.20 * 0.14 + 1.10 * 1 + 1 * 1 + 1 + 1) = 273.1301562924326

p2 = (866.67 * 1 * 1 + 272.73 * 1.10 * 1 + 0 * 1.20 * 0.14) / max_coefficients = 79.09627118644069

score = 273.1301562924326 * 0.5 + 79.09627118644069 * 0.5 = 176.11321373943665

Rating changes

Show

all results
Date Place Points Reason
2023-11-05 150 -> 154 170.85 -> 176.11

Winter tournament: 29% -> 14%
2023-10-27 151 -> 150 170.85
2023-10-22 149 -> 151 170.85
2023-10-19 151 -> 149 170.85
2023-10-12 152 -> 151 170.60 -> 170.85
2023-09-28 153 -> 152 170.60
2023-09-09 154 -> 153 170.60
2023-09-06 156 -> 154 170.60
2023-09-05 158 -> 156 165.72 -> 170.60

Winter tournament: 43% -> 29%
2023-09-03 140 -> 158 169.18 -> 165.72

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 14% 1.20 CRR Winter tournament
4 727 2021-07-03 4/12 0% 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