Petrushin Ivan

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

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

135 place (169.18).

max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.71 + 2.80 * 1) = 13.642914999999999

p1 = (0 * 1.20 * 0.43 + 272.73 * 1.10 * 1 + 866.67 * 1 * 1 + 0 + 0) / (1.20 * 0.43 + 1.10 * 1 + 1 * 1 + 1 + 1) = 252.83682102671685

p2 = (866.67 * 1 * 1 + 272.73 * 1.10 * 1 + 0 * 1.20 * 0.43) / max_coefficients = 85.51471588000074

score = 252.83682102671685 * 0.5 + 85.51471588000074 * 0.5 = 169.17576845335878

Rating changes

Show

all results
Date Place Points Reason
2023-08-19 136 -> 135 169.18
2023-08-12 137 -> 136 167.44 -> 169.18
2023-07-20 136 -> 137 167.44
2023-07-06 138 -> 136 167.44
2023-07-05 140 -> 138 162.91 -> 167.44

Winter tournament: 57% -> 43%
2023-07-03 127 -> 140 207.48 -> 162.91

Summer tournament: 14% -> 0%
2023-06-19 128 -> 127 207.48
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

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 43% 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