Grebnev Grigorii
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Aug. 11, 2024 (latest changes Aug. 11, 2024).
107 place (345.54).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.65 * 1 + 3.05 * 1) = 15.3
p1 = (282.05 * 1.80 * 0.14 + 354.84 * 1.80 * 0.57 + 700.93 * 4 * 1 + 239.13 * 2.10 * 1 + 0) / (1.80 * 0.14 + 1.80 * 0.57 + 4 * 1 + 2.10 * 1 + 1) = 446.40306043354553
p2 = (700.93 * 4 * 1 + 239.13 * 2.10 * 1 + 354.84 * 1.80 * 0.57 + 282.05 * 1.80 * 0.14) / max_coefficients = 244.66797385620913
score = 446.40306043354553 * 0.5 + 244.66797385620913 * 0.5 = 345.5355171448773
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2024-05-19 | 97 -> 98 | 346.36 | |
| 2024-05-12 | 76 -> 97 | 362.10 -> 346.36 | |
| 2024-04-27 | 76 | 362.55 -> 362.10 |
Sun tournament: 43% -> 29% |
| 2024-04-25 | 76 | 364.79 -> 362.55 |
Earth cup: 86% -> 71% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 239 |
|
36/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 2 | 701 |
|
33/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 3 | 355 |
|
21/32 | 57% | 1.80 | CRR | Earth cup |
| 4 | 282 |
|
29/40 | 14% | 1.80 | CRR | Sun tournament |