Petrushin Ivan

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 28, 2023 (latest changes Sept. 28, 2023).

153 place (170.60).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915

p1 = (0 * 1.20 * 0.29 + 272.73 * 1.10 * 1 + 866.67 * 1 * 1 + 0 + 0) / (1.20 * 0.29 + 1.10 * 1 + 1 * 1 + 1 + 1) = 262.5955469924643

p2 = (866.67 * 1 * 1 + 272.73 * 1.10 * 1 + 0 * 1.20 * 0.29) / max_coefficients = 78.60113731029249

score = 262.5955469924643 * 0.5 + 78.60113731029249 * 0.5 = 170.59834215137838

Rating changes

Show

all results
Date Place Points Reason
2023-09-28 154 -> 153 170.60
2023-09-09 155 -> 154 170.60
2023-09-06 157 -> 155 170.60
2023-09-05 159 -> 157 165.72 -> 170.60

Winter tournament: 43% -> 29%
2023-09-03 141 -> 159 169.18 -> 165.72
2023-08-27 137 -> 141 169.18
2023-08-26 136 -> 137 169.18
2023-08-19 137 -> 136 169.18
2023-08-12 138 -> 137 167.44 -> 169.18
2023-07-20 137 -> 138 167.44

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 29% 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