Petrushin Ivan

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 6, 2022 (latest changes Nov. 6, 2022).

130 place (75.79).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 1) = 15.2

p1 = (133.33 * 1.20 * 0.14 + 727.27 * 1.10 * 0.57 + 0 * 1.20 * 1 + 0 + 0) / (1.20 * 0.14 + 1.10 * 0.57 + 1.20 * 1 + 1 + 1) = 119.99440002799986

p2 = (727.27 * 1.10 * 0.57 + 133.33 * 1.20 * 0.14 + 0 * 1.20 * 1) / max_coefficients = 31.577631578947372

score = 119.99440002799986 * 0.5 + 31.577631578947372 * 0.5 = 75.78601580347362

Rating changes

Show

all results
Date Place Points Reason
2022-11-06 109 -> 130 76.78 -> 75.79
2022-11-03 107 -> 109 92.87 -> 76.78

Summer tournament: 71% -> 57%

Winter tournament: 29% -> 14%
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 57% 1.10 CRR Summer tournament
3 133 2021-01-03 14/16 14% 1.20 CRR Winter tournament
4 158 2019-12-15 17/20 0% 1.30 CRR Irkutsk Winter Tournament 2019