Grigoryan Andrey

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 28, 2023 (latest changes Sept. 28, 2023).

131 place (234.13).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915

p1 = (548.39 * 1.80 * 1 + 360 * 3.45 * 0.14 + 43.48 * 1.40 * 1 + 538.46 * 1.80 * 0.86 + 0) / (1.80 * 1 + 3.45 * 0.14 + 1.40 * 1 + 1.80 * 0.86 + 1) = 329.73875783081036

p2 = (548.39 * 1.80 * 1 + 538.46 * 1.80 * 0.86 + 360 * 3.45 * 0.14 + 43.48 * 1.40 * 1) / max_coefficients = 138.5293926428872

score = 329.73875783081036 * 0.5 + 138.5293926428872 * 0.5 = 234.1340752368488

Rating changes

Show

all results
Date Place Points Reason
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
2023-08-19 104 -> 103 256.71
2023-08-12 106 -> 104 253.18 -> 256.71
2023-07-28 107 -> 106 260.09 -> 253.18

Saint Petersburg Open 2021: 43% -> 29%
2023-07-20 108 -> 107 260.09

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 86% 1.80 CRR Sun tournament
4 360 2021-11-28 49/76 14% 3.45 RR Saint Petersburg Open 2021