Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date July 31, 2026 (latest changes July 26, 2026).

218 place (177.72).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (484.21 * 3.85 * 0.14 + 593.22 * 3.25 * 0.57 + 40.54 * 3.40 * 1 + 258.06 * 1.80 * 1 + 0) / (3.85 * 0.14 + 3.25 * 0.57 + 3.40 * 1 + 1.80 * 1 + 1) = 228.92422229490026

p2 = (593.22 * 3.25 * 0.57 + 258.06 * 1.80 * 1 + 484.21 * 3.85 * 0.14 + 40.54 * 3.40 * 1) / max_coefficients = 126.5176629675789

score = 228.92422229490026 * 0.5 + 126.5176629675789 * 0.5 = 177.72094263123958

Rating changes

Show

all results
Date Place Points Reason
2026-07-26 219 -> 218 177.72
2026-07-25 229 -> 219 144.79 -> 177.72

Seihoku Summer Tournament 2026: 0% -> 100%
2026-07-18 225 -> 229 144.79
2026-07-12 223 -> 225 144.79
2026-07-03 224 -> 223 144.79
2026-07-01 220 -> 224 162.92 -> 144.79

SPB Riichi Open 2024: 29% -> 14%
2026-06-16 211 -> 220 181.79 -> 162.92

White Wolf Cup: 71% -> 57%
2026-06-15 213 -> 211 179.41 -> 181.79
2026-06-14 191 -> 213 185.00 -> 179.41
2026-06-13 192 -> 191 185.00

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 258 2026-07-25 24/32 100% 1.80 RR Seihoku Summer Tournament 2026 Saint Petersburg
2 41 2026-02-23 72/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
3 593 2025-02-16 25/60 57% 3.25 RR White Wolf Cup Saint Petersburg
4 484 2024-09-01 50/96 14% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 239 2024-03-30 36/47 0% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
6 701 2023-09-03 33/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg