Grebnev Grigorii
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Sept. 1, 2024 (latest changes Sept. 1, 2024).
95 place (401.28).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.85 * 1 + 3.65 * 1) = 16.099999999999998
p1 = (354.84 * 1.80 * 0.43 + 700.93 * 4 * 1 + 239.13 * 2.10 * 1 + 484.21 * 3.85 * 1 + 0) / (1.80 * 0.43 + 4 * 1 + 2.10 * 1 + 3.85 * 1 + 1) = 464.43537846756556
p2 = (700.93 * 4 * 1 + 484.21 * 3.85 * 1 + 239.13 * 2.10 * 1 + 354.84 * 1.80 * 0.43) / max_coefficients = 338.1285714285715
score = 464.43537846756556 * 0.5 + 338.1285714285715 * 0.5 = 401.2819749480685
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2024-06-09 | 98 -> 101 | 346.36 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 484 |
|
50/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 2 | 239 |
|
36/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 3 | 701 |
|
33/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 4 | 355 |
|
21/32 | 43% | 1.80 | CRR | Earth cup |
| 5 | 282 |
|
29/40 | 0% | 1.80 | CRR | Sun tournament |