Petrushin Ivan

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 5, 2024 (latest changes Nov. 5, 2024).

212 place (75.49).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (272.73 * 1.10 * 0.29 + 866.67 * 1 * 0.43 + 0 + 0 + 0) / (1.10 * 0.29 + 1 * 0.43 + 1 + 1 + 1) = 122.14156516256242

p2 = (866.67 * 1 * 0.43 + 272.73 * 1.10 * 0.29) / max_coefficients = 28.84290220820189

score = 122.14156516256242 * 0.5 + 28.84290220820189 * 0.5 = 75.49223368538216

Rating changes

Show

Date Place Points Reason
2024-11-05 215 -> 212 75.49
2024-11-04 210 -> 215 75.49
2024-11-01 203 -> 210 93.08 -> 75.49

Spring Tournament Irkutsk 2023: 57% -> 43%

2024-10-27 202 -> 203 93.08
2024-10-25 204 -> 202 93.08
2024-10-13 190 -> 204 93.46 -> 93.08
2024-10-11 191 -> 190 93.46
2024-09-15 187 -> 191 93.46
2024-09-14 187 97.23 -> 93.46

Survive after yakuman: 43% -> 29%

2024-09-03 187 96.52 -> 97.23

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 867 2023-05-01 3/16 43% 1.00 CRR Spring Tournament Irkutsk 2023
2 273 2023-01-14 9/12 29% 1.10 CRR Survive after yakuman
3 0 2022-01-05 16/16 0% 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