Petrushin Ivan

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 3, 2022 (latest changes Sept. 3, 2022).

107 place (92.87).

max_coefficients = (4.05 * 1 + 3.50 * 1 + 3.45 * 1 + 3.30 * 1) = 14.3

p1 = (133.33 * 1.20 * 0.29 + 727.27 * 1.10 * 0.71 + 0 * 1.20 * 1 + 0 + 0) / (1.20 * 0.29 + 1.10 * 0.71 + 1.20 * 1 + 1 + 1) = 142.5759546455296

p2 = (727.27 * 1.10 * 0.71 + 133.33 * 1.20 * 0.29 + 0 * 1.20 * 1) / max_coefficients = 43.15734265734266

score = 142.5759546455296 * 0.5 + 43.15734265734266 * 0.5 = 92.86664865143614

Rating changes

Show

all results
Date Place Points Reason
2022-09-03 106 -> 107 107.35 -> 92.87

Summer tournament: 86% -> 71%

Winter tournament: 43% -> 29%
2022-08-27 95 -> 106 107.35
2022-08-20 92 -> 95 107.35
2022-07-09 90 -> 92 107.35
2022-07-03 82 -> 90 120.57 -> 107.35

Winter tournament: 57% -> 43%

Summer tournament: 100% -> 86%
2022-06-12 64 -> 82 122.78 -> 120.57
2022-05-15 178 -> 64 46.10 -> 122.78
2021-02-01 178 46.10

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 0 2022-01-05 16/16 100% 1.20 CRR Winter tournament
2 727 2021-07-03 4/12 71% 1.10 CRR Summer tournament
3 133 2021-01-03 14/16 29% 1.20 CRR Winter tournament
4 158 2019-12-15 17/20 0% 1.30 CRR Irkutsk Winter Tournament 2019