Grigoryan Andrey

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 5, 2025 (latest changes Nov. 5, 2025).

219 place (196.12).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (136.84 * 3.85 * 0.71 + 118.64 * 3.25 * 1 + 828.57 * 1.90 * 1 + 0 + 0) / (3.85 * 0.71 + 3.25 * 1 + 1.90 * 1 + 1 + 1) = 235.97848698820357

p2 = (828.57 * 1.90 * 1 + 118.64 * 3.25 * 1 + 136.84 * 3.85 * 0.71) / max_coefficients = 156.26755852842808

score = 235.97848698820357 * 0.5 + 156.26755852842808 * 0.5 = 196.1230227583158

Rating changes

Show

all results
Date Place Points Reason
2025-11-04 209 -> 219 199.67 -> 196.12
2025-11-01 210 -> 209 199.40 -> 199.67

SPB Riichi Open 2024: 86% -> 71%
2025-10-13 211 -> 210 196.85 -> 199.40
2025-10-09 212 -> 211 196.85
2025-10-04 214 -> 212 196.85
2025-09-30 215 -> 214 196.85
2025-09-19 216 -> 215 196.85
2025-09-12 217 -> 216 196.85
2025-09-05 218 -> 217 196.85
2025-09-03 223 -> 218 196.85

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 71% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
4 43 2023-04-22 23/24 0% 1.40 CRR Fire cup 2023 Saint Petersburg
5 548 2023-02-25 15/32 0% 1.80 CRR Earth cup Saint Petersburg
6 538 2022-08-27 19/40 0% 1.80 CRR Sun tournament Saint Petersburg
7 360 2021-11-28 49/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg