Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

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

109 place (364.07).

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

p1 = (354.84 * 1.80 * 0.29 + 700.93 * 4 * 0.71 + 239.13 * 2.10 * 1 + 484.21 * 3.85 * 1 + 0) / (1.80 * 0.29 + 4 * 0.71 + 2.10 * 1 + 3.85 * 1 + 1) = 440.9812177734545

p2 = (700.93 * 4 * 0.71 + 484.21 * 3.85 * 1 + 239.13 * 2.10 * 1 + 354.84 * 1.80 * 0.29) / max_coefficients = 287.16529968454256

score = 440.9812177734545 * 0.5 + 287.16529968454256 * 0.5 = 364.07325872899855

Rating changes

Show

Date Place Points Reason
2024-12-11 110 -> 109 364.07
2024-12-01 109 -> 110 364.07
2024-11-05 114 -> 109 364.07
2024-11-04 113 -> 114 364.07
2024-11-03 106 -> 113 383.52 -> 364.07

SPB Riichi Open 2023: 86% -> 71%

2024-10-25 106 385.25 -> 383.52

Earth cup: 43% -> 29%

2024-10-22 107 -> 106 385.25
2024-10-18 108 -> 107 385.25
2024-10-13 97 -> 108 388.54 -> 385.25
2024-10-11 99 -> 97 388.54

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 71% 4.00 RR SPB Riichi Open 2023
4 355 2023-02-25 21/32 29% 1.80 CRR Earth cup
5 282 2022-08-27 29/40 0% 1.80 CRR Sun tournament