Grigoryan Andrey

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 3, 2023 (latest changes Nov. 3, 2023).

131 place (225.39).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75

p1 = (360 * 3.45 * 0.14 + 538.46 * 1.80 * 0.71 + 548.39 * 1.80 * 1 + 43.48 * 1.40 * 1 + 0) / (3.45 * 0.14 + 1.80 * 0.71 + 1.80 * 1 + 1.40 * 1 + 1) = 320.7646420778943

p2 = (548.39 * 1.80 * 1 + 538.46 * 1.80 * 0.71 + 360 * 3.45 * 0.14 + 43.48 * 1.40 * 1) / max_coefficients = 130.01830508474575

score = 320.7646420778943 * 0.5 + 130.01830508474575 * 0.5 = 225.39147358132

Rating changes

Show

all results
Date Place Points Reason
2023-10-27 130 -> 131 234.57 -> 225.39

Sun tournament: 86% -> 71%
2023-10-22 128 -> 130 234.57
2023-10-19 129 -> 128 234.57
2023-10-12 131 -> 129 234.13 -> 234.57
2023-09-28 129 -> 131 241.22 -> 234.13

Saint Petersburg Open 2021: 29% -> 14%
2023-09-20 131 -> 129 241.22
2023-09-06 132 -> 131 241.22
2023-09-03 113 -> 132 247.83 -> 241.22
2023-08-27 104 -> 113 256.71 -> 247.83

Sun tournament: 100% -> 86%
2023-08-26 103 -> 104 256.71

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 43 2023-04-22 23/24 100% 1.40 CRR Fire cup 2023
2 548 2023-02-25 15/32 100% 1.80 CRR Earth cup
3 538 2022-08-27 19/40 71% 1.80 CRR Sun tournament
4 360 2021-11-28 49/76 14% 3.45 RR Saint Petersburg Open 2021