Grigoryan Andrey

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date May 10, 2026 (latest changes May 7, 2026).

196 place (202.13).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85

p1 = (136.84 * 3.85 * 0.29 + 118.64 * 3.25 * 0.71 + 828.57 * 1.90 * 0.86 + 166.67 * 1.70 * 1 + 0) / (3.85 * 0.29 + 3.25 * 0.71 + 1.90 * 0.86 + 1.70 * 1 + 1) = 265.62889117422003

p2 = (828.57 * 1.90 * 0.86 + 166.67 * 1.70 * 1 + 118.64 * 3.25 * 0.71 + 136.84 * 3.85 * 0.29) / max_coefficients = 138.62626262626262

score = 265.62889117422003 * 0.5 + 138.62626262626262 * 0.5 = 202.1275769002413

Rating changes

Show

all results
Date Place Points Reason
2026-05-03 190 -> 196 201.66 -> 202.13
2026-05-01 193 -> 190 199.91 -> 201.66

SPB Riichi Open 2024: 43% -> 29%
2026-04-26 186 -> 193 216.49 -> 199.91

Seihoku spring tournament 2025: 100% -> 86%
2026-04-19 182 -> 186 216.49
2026-04-16 186 -> 182 214.31 -> 216.49

White Wolf Cup: 86% -> 71%
2026-04-13 188 -> 186 214.31
2026-04-11 188 199.06 -> 214.31

Seihoku spring tournament 2026: 0% -> 100%
2026-04-05 182 -> 188 199.06
2026-04-04 184 -> 182 199.06
2026-03-30 185 -> 184 199.06

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 167 2026-04-11 26/31 100% 1.70 RR Seihoku spring tournament 2026 Saint Petersburg
2 829 2025-04-26 7/36 86% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
3 119 2025-02-16 53/60 71% 3.25 RR White Wolf Cup Saint Petersburg
4 137 2024-09-01 83/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 360 2021-11-28 49/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg