Grishina Olga
From Moscow, Russia
EMA: 15990379
Internal rating (RR)
Rating date Feb. 5, 2025 (latest changes Feb. 3, 2025).
24 place (650.96).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (701.15 * 3.75 * 0.43 + 869.16 * 4 * 0.57 + 504.67 * 4.60 * 1 + 509.80 * 3.05 * 1 + 947.37 * 3.85 * 1 + 617.98 * 3.75 * 1 + 509.80 * 3.05 * 1) / (3.75 * 0.43 + 4 * 0.57 + 4.60 * 1 + 3.05 * 1 + 3.85 * 1 + 3.75 * 1 + 3.05 * 1) = 653.7943526856623
p2 = (947.37 * 3.85 * 1 + 504.67 * 4.60 * 1 + 617.98 * 3.75 * 1 + 869.16 * 4 * 0.57) / max_coefficients = 648.1287066246057
score = 653.7943526856623 * 0.5 + 648.1287066246057 * 0.5 = 650.961529655134
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-02-02 | 20 -> 24 | 662.43 -> 650.96 |
Agari Winter Tournament 2025: 0% -> 100% |
| 2025-01-26 | 19 -> 20 | 662.43 | |
| 2025-01-07 | 16 -> 19 | 662.43 | |
| 2025-01-03 | 16 | 680.89 -> 662.43 |
SPB Riichi Open 2023: 71% -> 57% |
| 2024-12-11 | 16 | 681.14 -> 680.89 |
Money can not buy tenpai: 57% -> 43% |
| 2024-11-06 | 16 | 674.19 -> 681.14 |
IX Russian Riichi Championship: 14% -> 0% |
| 2024-11-03 | 14 -> 16 | 692.53 -> 674.19 |
SPB Riichi Open 2023: 86% -> 71% |
| 2024-10-13 | 14 | 681.30 -> 692.53 |
Moscow Riichi 2024: 0% -> 100% |
| 2024-10-11 | 15 -> 14 | 691.93 -> 681.30 |
Money can not buy tenpai: 71% -> 57% |
| 2024-09-06 | 16 -> 15 | 684.17 -> 691.93 |
IX Russian Riichi Championship: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 510 |
|
26/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 |
| 2 | 618 |
|
35/90 | 100% | 3.75 | RR | Moscow Riichi 2024 |
| 3 | 947 |
|
6/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 4 | 510 |
|
26/52 | 100% | 3.05 | RR | Agari Summer Tournament 2024 |
| 5 | 505 |
|
54/108 | 100% | 4.60 | RR | X Russian Championship |
| 6 | 869 |
|
15/108 | 57% | 4.00 | RR | SPB Riichi Open 2023 |
| 7 | 701 |
|
27/88 | 43% | 3.75 | RR | Money can not buy tenpai |
| 8 | 200 |
|
61/76 | 0% | 4.20 | RR | IX Russian Riichi Championship |
| 9 | 937 |
|
8/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |
| 10 | 701 |
|
21/68 | 0% | 3.50 | RR | Tenpai can't buy happiness |
| 11 | 106 |
|
43/48 | 0% | 3.10 | RR | Agari team tournament |
| 12 | 707 |
|
23/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |
| 13 | 323 |
|
22/32 | 0% | 2.70 | RR | The last chance: back to 2019 |
| 14 | 477 |
|
59/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
| 15 | 371 |
|
23/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
| 16 | 254 |
|
48/64 | 0% | 3.45 | EMA | White Dragon Tournament |