Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Feb. 8, 2026 (latest changes Feb. 8, 2026).

146 place (300.24).

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

p1 = (239.13 * 2.10 * 0.14 + 484.21 * 3.85 * 0.57 + 593.22 * 3.25 * 1 + 0 + 0) / (2.10 * 0.14 + 3.85 * 0.57 + 3.25 * 1 + 1 + 1) = 395.4771496184506

p2 = (593.22 * 3.25 * 1 + 484.21 * 3.85 * 0.57 + 239.13 * 2.10 * 0.14) / max_coefficients = 205.01270903010038

score = 395.4771496184506 * 0.5 + 205.01270903010038 * 0.5 = 300.2449293242755

Rating changes

Show

all results
Date Place Points Reason
2026-02-08 140 -> 146 300.24
2026-02-04 142 -> 140 300.24
2026-02-02 143 -> 142 300.24
2026-01-30 143 299.73 -> 300.24

Seihoku spring tournament 2024: 29% -> 14%
2026-01-25 142 -> 143 299.73
2026-01-12 143 -> 142 299.73
2026-01-07 138 -> 143 299.73
2026-01-01 134 -> 138 311.67 -> 299.73

SPB Riichi Open 2024: 71% -> 57%
2025-12-09 135 -> 134 311.67
2025-12-07 133 -> 135 311.67

Tournaments

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