Grishina Olga
From Moscow, Russia
EMA: 15990379
Common russian riichi rating (CRR)
Rating date Oct. 27, 2022 (latest changes Oct. 27, 2022).
12 place (613.90).
how we calculated rating score
max_coefficients = (4.05 * 1 + 3.50 * 1 + 3.45 * 1 + 3.30 * 1) = 14.3
p1 = (706.67 * 3.45 * 1 + 106.38 * 3.10 * 1 + 701.49 * 3.50 * 1 + 936.94 * 4.05 * 1 + 0) / (3.45 * 1 + 3.10 * 1 + 3.50 * 1 + 4.05 * 1 + 1) = 597.1920529801324
p2 = (936.94 * 4.05 * 1 + 701.49 * 3.50 * 1 + 706.67 * 3.45 * 1 + 106.38 * 3.10 * 1) / max_coefficients = 630.6013986013986
score = 597.1920529801324 * 0.5 + 630.6013986013986 * 0.5 = 613.8967257907655
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2022-10-14 | 90 -> 12 | 284.81 -> 613.90 | |
| 2021-02-01 | 142 -> 90 | 323.12 -> 284.81 | |
| 2020-02-01 | 142 | 323.12 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 937 |
|
8/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |
| 2 | 701 |
|
21/68 | 100% | 3.50 | RR | Tenpai can't buy happiness |
| 3 | 106 |
|
43/48 | 100% | 3.10 | RR | Agari team tournament |
| 4 | 707 |
|
23/76 | 100% | 3.45 | RR | Saint Petersburg Open 2021 |
| 5 | 323 |
|
22/32 | 0% | 2.70 | RR | The last chance: back to 2019 |
| 6 | 477 |
|
59/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
| 7 | 371 |
|
23/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
| 8 | 254 |
|
48/64 | 0% | 3.45 | EMA | White Dragon Tournament |