Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 3, 2024 (latest changes Sept. 3, 2024).

98 place (388.54).

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

p1 = (354.84 * 1.80 * 0.43 + 700.93 * 4 * 0.86 + 239.13 * 2.10 * 1 + 484.21 * 3.85 * 1 + 0) / (1.80 * 0.43 + 4 * 0.86 + 2.10 * 1 + 3.85 * 1 + 1) = 452.31069751423337

p2 = (700.93 * 4 * 0.86 + 484.21 * 3.85 * 1 + 239.13 * 2.10 * 1 + 354.84 * 1.80 * 0.43) / max_coefficients = 324.77331856469436

score = 452.31069751423337 * 0.5 + 324.77331856469436 * 0.5 = 388.5420080394639

Rating changes

Show

Date Place Points Reason
2024-09-03 95 -> 98 401.28 -> 388.54

SPB Riichi Open 2023: 100% -> 86%

2024-09-01 112 -> 95 318.73 -> 401.28

SPB Riichi Open 2024: 0% -> 100%

2024-08-27 113 -> 112 318.73

Sun tournament: 14% -> 0%

2024-08-26 107 -> 113 344.00 -> 318.73
2024-08-25 107 345.54 -> 344.00

Earth cup: 57% -> 43%

2024-08-11 109 -> 107 344.24 -> 345.54
2024-08-04 104 -> 109 349.12 -> 344.24
2024-07-14 99 -> 104 349.12
2024-06-25 99 350.94 -> 349.12

Earth cup: 71% -> 57%

2024-06-11 101 -> 99 346.36 -> 350.94

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
4 355 2023-02-25 21/32 43% 1.80 CRR Earth cup
5 282 2022-08-27 29/40 0% 1.80 CRR Sun tournament