Grigoryan Andrey

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Aug. 9, 2025 (latest changes Aug. 9, 2025).

178 place (194.83).

max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2

p1 = (136.84 * 3.85 * 1 + 118.64 * 3.25 * 1 + 828.57 * 1.90 * 1 + 0 + 0) / (3.85 * 1 + 3.25 * 1 + 1.90 * 1 + 1 + 1) = 226.06545454545457

p2 = (828.57 * 1.90 * 1 + 136.84 * 3.85 * 1 + 118.64 * 3.25 * 1) / max_coefficients = 163.60000000000002

score = 226.06545454545457 * 0.5 + 163.60000000000002 * 0.5 = 194.8327272727273

Rating changes

Show

all results
Date Place Points Reason
2025-08-04 179 -> 178 194.03 -> 194.83
2025-08-03 174 -> 179 194.03
2025-07-13 170 -> 174 194.03
2025-07-12 170 192.52 -> 194.03
2025-07-10 171 -> 170 192.52
2025-07-03 172 -> 171 192.52
2025-06-15 160 -> 172 194.87 -> 192.52
2025-06-11 170 -> 160 194.87
2025-05-12 172 -> 170 191.48 -> 194.87
2025-05-03 170 -> 172 191.48

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 829 2025-04-26 7/36 100% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
2 119 2025-02-16 53/60 100% 3.25 RR White Wolf Cup Saint Petersburg
3 137 2024-09-01 83/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
4 360 2021-11-28 49/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg