Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Oct. 11, 2024 (latest changes Oct. 11, 2024).

88 place (363.16).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284

p1 = (700.93 * 4 * 0.86 + 239.13 * 2.10 * 1 + 484.21 * 3.85 * 1 + 0 + 0) / (4 * 0.86 + 2.10 * 1 + 3.85 * 1 + 1 + 1) = 419.1678970681291

p2 = (700.93 * 4 * 0.86 + 484.21 * 3.85 * 1 + 239.13 * 2.10 * 1) / max_coefficients = 307.14432910022924

score = 419.1678970681291 * 0.5 + 307.14432910022924 * 0.5 = 363.1561130841792

Rating changes

Show

all results
Date Place Points Reason
2024-10-11 91 -> 88 363.16
2024-09-06 92 -> 91 363.16
2024-09-03 85 -> 92 376.89 -> 363.16

SPB Riichi Open 2023: 100% -> 86%
2024-09-01 101 -> 85 289.68 -> 376.89

SPB Riichi Open 2024: 0% -> 100%
2024-08-11 102 -> 101 288.53 -> 289.68
2024-08-04 96 -> 102 292.85 -> 288.53
2024-07-14 91 -> 96 292.85
2024-06-11 98 -> 91 288.98 -> 292.85
2024-06-09 88 -> 98 288.98
2024-05-12 66 -> 88 309.78 -> 288.98

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 484 2024-09-01 50/96 100% 3.85 RR SPB Riichi Open 2024
2 239 2024-03-30 36/47 100% 2.10 RR Seihoku spring tournament 2024
3 701 2023-09-03 33/108 86% 4.00 RR SPB Riichi Open 2023