Grebnev Grigorii
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Oct. 27, 2023 (latest changes Oct. 27, 2023).
93 place (338.39).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (282.05 * 1.80 * 0.71 + 354.84 * 1.80 * 1 + 700.93 * 4 * 1 + 0 + 0) / (1.80 * 0.71 + 1.80 * 1 + 4 * 1 + 1 + 1) = 418.7980285590386
p2 = (700.93 * 4 * 1 + 354.84 * 1.80 * 1 + 282.05 * 1.80 * 0.71) / max_coefficients = 257.9722033898305
score = 418.7980285590386 * 0.5 + 257.9722033898305 * 0.5 = 338.38511597443454
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-10-27 | 95 -> 93 | 338.96 -> 338.39 |
Sun tournament: 86% -> 71% |
2023-10-22 | 92 -> 95 | 338.96 | |
2023-10-19 | 94 -> 92 | 338.96 | |
2023-10-12 | 95 -> 94 | 338.14 -> 338.96 | |
2023-09-28 | 96 -> 95 | 338.14 | |
2023-09-05 | 97 -> 96 | 338.14 | |
2023-09-03 | 154 -> 97 | 124.01 -> 338.14 |
SPB Riichi Open 2023: 0% -> 100% |
2023-08-27 | 146 -> 154 | 128.86 -> 124.01 |
Sun tournament: 100% -> 86% |
2023-08-26 | 144 -> 146 | 128.86 | |
2023-08-12 | 145 -> 144 | 127.15 -> 128.86 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 701 |
|
33/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
2 | 355 |
|
21/32 | 100% | 1.80 | CRR | Earth cup |
3 | 282 |
|
29/40 | 71% | 1.80 | CRR | Sun tournament |