Grigoryan Andrey

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Oct. 29, 2026 (latest changes Oct. 27, 2026).

229 place (132.79).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (118.64 * 3.25 * 0.29 + 828.57 * 1.90 * 0.43 + 166.67 * 1.70 * 1 + 0 + 0) / (3.25 * 0.29 + 1.90 * 0.43 + 1.70 * 1 + 1 + 1) = 196.26244634030056

p2 = (828.57 * 1.90 * 0.43 + 166.67 * 1.70 * 1 + 118.64 * 3.25 * 0.29) / max_coefficients = 69.3205710577547

score = 196.26244634030056 * 0.5 + 69.3205710577547 * 0.5 = 132.79150869902764

Rating changes

Show

all results
Date Place Points Reason
2026-10-26 219 -> 229 155.10 -> 132.79

Seihoku spring tournament 2025: 57% -> 43%
2026-10-16 220 -> 219 152.84 -> 155.10

White Wolf Cup: 43% -> 29%
2026-10-15 221 -> 220 152.84
2026-10-13 228 -> 221 152.84
2026-10-02 229 -> 228 152.84
2026-09-06 223 -> 229 152.84
2026-09-02 224 -> 223 152.84
2026-09-01 220 -> 224 170.42 -> 152.84

SPB Riichi Open 2024: 14% -> 0%
2026-08-31 220 170.27 -> 170.42
2026-08-27 221 -> 220 170.27

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 43% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
3 119 2025-02-16 53/60 29% 3.25 RR White Wolf Cup Saint Petersburg
4 137 2024-09-01 83/96 0% 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