Grishina Olga
From Moscow, Russia
EMA: 15990379
Internal rating (RR)
Rating date March 6, 2023 (latest changes March 6, 2023).
14 place (586.59).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.71) = 14.214335
p1 = (706.67 * 3.45 * 0.71 + 106.38 * 3.10 * 0.71 + 701.49 * 3.50 * 1 + 936.94 * 4.05 * 1 + 200 * 4.20 * 1) / (3.45 * 0.71 + 3.10 * 0.71 + 3.50 * 1 + 4.05 * 1 + 4.20 * 1) = 551.891465313828
p2 = (936.94 * 4.05 * 1 + 701.49 * 3.50 * 1 + 706.67 * 3.45 * 0.71 + 200 * 4.20 * 1) / max_coefficients = 621.2932226516401
score = 551.891465313828 * 0.5 + 621.2932226516401 * 0.5 = 586.5923439827341
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-02-19 | 14 | 576.59 -> 586.59 |
Agari team tournament: 86% -> 71% |
| 2023-01-28 | 15 -> 14 | 584.54 -> 576.59 |
Saint Petersburg Open 2021: 86% -> 71% |
| 2022-12-19 | 16 -> 15 | 576.08 -> 584.54 |
Agari team tournament: 100% -> 86% |
| 2022-11-28 | 15 -> 16 | 582.75 -> 576.08 |
Saint Petersburg Open 2021: 100% -> 86% |
| 2022-11-06 | 11 -> 15 | 613.90 -> 582.75 |
IX Russian Riichi Championship: 0% -> 100% |
| 2022-10-14 | 82 -> 11 | 284.81 -> 613.90 | |
| 2021-02-01 | 125 -> 82 | 323.12 -> 284.81 | |
| 2020-02-01 | 125 | 323.12 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 200 |
|
61/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
| 2 | 937 |
|
8/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |
| 3 | 701 |
|
21/68 | 100% | 3.50 | RR | Tenpai can't buy happiness |
| 4 | 106 |
|
43/48 | 71% | 3.10 | RR | Agari team tournament |
| 5 | 707 |
|
23/76 | 71% | 3.45 | RR | Saint Petersburg Open 2021 |
| 6 | 323 |
|
22/32 | 0% | 2.70 | RR | The last chance: back to 2019 |
| 7 | 477 |
|
59/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
| 8 | 371 |
|
23/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
| 9 | 254 |
|
48/64 | 0% | 3.45 | EMA | White Dragon Tournament |