Grishina Olga
From Moscow, Russia
EMA: 15990379
Internal rating (RR)
Rating date Jan. 6, 2024 (latest changes Jan. 6, 2024).
4 place (672.67).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.43) = 12.485890000000001
p1 = (701.49 * 3.50 * 0.29 + 936.94 * 4.05 * 0.43 + 200 * 4.20 * 0.71 + 701.15 * 3.75 * 1 + 869.16 * 4 * 1) / (3.50 * 0.29 + 4.05 * 0.43 + 4.20 * 0.71 + 3.75 * 1 + 4 * 1) = 669.8715096723674
p2 = (869.16 * 4 * 1 + 701.15 * 3.75 * 1 + 936.94 * 4.05 * 0.43 + 701.49 * 3.50 * 0.29) / max_coefficients = 675.4640638352572
score = 669.8715096723674 * 0.5 + 675.4640638352572 * 0.5 = 672.6677867538124
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-01-06 | 5 -> 4 | 647.89 -> 672.67 |
IX Russian Riichi Championship: 86% -> 71% |
2023-12-19 | 6 -> 5 | 639.61 -> 647.89 |
Agari team tournament: 14% -> 0% |
2023-12-12 | 5 -> 6 | 651.58 -> 639.61 |
Moscow Riichi 2022: 57% -> 43% |
2023-11-28 | 6 -> 5 | 652.55 -> 651.58 |
Saint Petersburg Open 2021: 14% -> 0% |
2023-11-20 | 6 | 665.56 -> 652.55 |
Tenpai can't buy happiness: 43% -> 29% |
2023-11-06 | 9 -> 6 | 643.14 -> 665.56 |
IX Russian Riichi Championship: 100% -> 86% |
2023-10-19 | 10 -> 9 | 636.35 -> 643.14 |
Agari team tournament: 29% -> 14% |
2023-10-12 | 9 -> 10 | 647.06 -> 636.35 |
Moscow Riichi 2022: 71% -> 57% |
2023-09-28 | 9 | 648.11 -> 647.06 |
Saint Petersburg Open 2021: 29% -> 14% |
2023-09-20 | 9 | 660.86 -> 648.11 |
Tenpai can't buy happiness: 57% -> 43% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 869 |
|
15/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
2 | 701 |
|
27/88 | 100% | 3.75 | RR | Money can not buy tenpai |
3 | 200 |
|
61/76 | 71% | 4.20 | RR | IX Russian Riichi Championship |
4 | 937 |
|
8/112 | 43% | 4.05 | RR | Moscow Riichi 2022 |
5 | 701 |
|
21/68 | 29% | 3.50 | RR | Tenpai can't buy happiness |
6 | 106 |
|
43/48 | 0% | 3.10 | RR | Agari team tournament |
7 | 707 |
|
23/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |
8 | 323 |
|
22/32 | 0% | 2.70 | RR | The last chance: back to 2019 |
9 | 477 |
|
59/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
10 | 371 |
|
23/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
11 | 254 |
|
48/64 | 0% | 3.45 | EMA | White Dragon Tournament |