Grebnev Grigorii
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Sept. 1, 2024 (latest changes Sept. 1, 2024).
85 place (376.89).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.85 * 1 + 3.65 * 1) = 16.099999999999998
p1 = (700.93 * 4 * 1 + 239.13 * 2.10 * 1 + 484.21 * 3.85 * 1 + 0 + 0) / (4 * 1 + 2.10 * 1 + 3.85 * 1 + 1 + 1) = 432.64602510460253
p2 = (700.93 * 4 * 1 + 484.21 * 3.85 * 1 + 239.13 * 2.10 * 1) / max_coefficients = 321.12546583850934
score = 432.64602510460253 * 0.5 + 321.12546583850934 * 0.5 = 376.88574547155594
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2024-05-06 | 66 | 306.87 -> 309.78 | |
| 2024-04-12 | 67 -> 66 | 306.87 | |
| 2024-03-30 | 67 | 306.87 |
Seihoku spring tournament 2024: 0% -> 100% |
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 |