Grishina Olga
From Moscow, Russia
EMA: 15990379
Common russian riichi rating (CRR)
Rating date Feb. 1, 2021 (latest changes Feb. 1, 2021).
90 place (284.81).
how we calculated rating score
max_coefficients = (4.05 * 0.86 + 2.90 * 1 + 3.85 * 0.71 + 3.45 * 0.71) = 11.585645
p1 = (371.43 * 3.20 * 0.43 + 477.48 * 4.05 * 0.86 + 322.58 * 2.70 * 0.86 + 0 + 0) / (3.20 * 0.43 + 4.05 * 0.86 + 2.70 * 0.86 + 1 + 1) = 318.16069660787525
p2 = (477.48 * 4.05 * 0.86 + 322.58 * 2.70 * 0.86 + 371.43 * 3.20 * 0.43) / max_coefficients = 251.46463576261831
score = 318.16069660787525 * 0.5 + 251.46463576261831 * 0.5 = 284.81266618524677
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | 323 |
|
22/32 | 86% | 2.70 | RR | The last chance: back to 2019 |
| 2 | 477 |
|
59/112 | 86% | 4.05 | EMA | VIII Russian Riichi Championship |
| 3 | 371 |
|
23/36 | 43% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
| 4 | 254 |
|
48/64 | 0% | 3.45 | EMA | White Dragon Tournament |