Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Feb. 16, 2025 (latest changes Feb. 16, 2025).

85 place (422.14).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (700.93 * 4 * 0.57 + 239.13 * 2.10 * 1 + 484.21 * 3.85 * 1 + 593.22 * 3.25 * 1 + 0) / (4 * 0.57 + 2.10 * 1 + 3.85 * 1 + 3.25 * 1 + 1) = 472.25683987954125

p2 = (593.22 * 3.25 * 1 + 484.21 * 3.85 * 1 + 700.93 * 4 * 0.57 + 239.13 * 2.10 * 1) / max_coefficients = 372.0132492113565

score = 472.25683987954125 * 0.5 + 372.0132492113565 * 0.5 = 422.13504454544886

Rating changes

Show

all results
Date Place Points Reason
2025-02-16 111 -> 85 319.04 -> 422.14

White Wolf Cup: 0% -> 100%
2025-02-11 115 -> 111 319.04
2025-02-02 111 -> 115 319.04
2025-01-26 108 -> 111 319.04
2025-01-07 104 -> 108 319.04
2025-01-03 98 -> 104 339.96 -> 319.04

SPB Riichi Open 2023: 71% -> 57%
2024-12-11 101 -> 98 339.96
2024-11-06 106 -> 101 339.96
2024-11-03 101 -> 106 360.04 -> 339.96

SPB Riichi Open 2023: 86% -> 71%
2024-10-13 89 -> 101 363.16 -> 360.04

Tournaments

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