Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date May 3, 2025 (latest changes May 3, 2025).

105 place (385.94).

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

p1 = (700.93 * 4 * 0.29 + 239.13 * 2.10 * 0.86 + 484.21 * 3.85 * 1 + 593.22 * 3.25 * 1 + 0) / (4 * 0.29 + 2.10 * 0.86 + 3.85 * 1 + 3.25 * 1 + 1) = 454.9263722401476

p2 = (593.22 * 3.25 * 1 + 484.21 * 3.85 * 1 + 700.93 * 4 * 0.29 + 239.13 * 2.10 * 0.86) / max_coefficients = 316.94763406940064

score = 454.9263722401476 * 0.5 + 316.94763406940064 * 0.5 = 385.9370031547741

Rating changes

Show

all results
Date Place Points Reason
2025-05-03 91 -> 105 404.63 -> 385.94

SPB Riichi Open 2023: 43% -> 29%
2025-04-26 90 -> 91 404.63
2025-04-11 92 -> 90 404.63
2025-03-30 92 404.02 -> 404.63

Seihoku spring tournament 2024: 100% -> 86%
2025-03-03 89 -> 92 422.14 -> 404.02

SPB Riichi Open 2023: 57% -> 43%
2025-03-02 85 -> 89 422.14
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

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 593 2025-02-16 25/60 100% 3.25 RR White Wolf Cup Saint Petersburg
2 484 2024-09-01 50/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
3 239 2024-03-30 36/47 86% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
4 701 2023-09-03 33/108 29% 4.00 RR SPB Riichi Open 2023 Saint Petersburg