Grishina Olga
From Moscow, Russia
EMA: 15990379
Internal rating (RR)
Rating date May 8, 2026 (latest changes May 7, 2026).
112 place (370.21).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (504.67 * 4.60 * 0.14 + 509.80 * 3.05 * 0.14 + 947.37 * 3.85 * 0.29 + 617.98 * 3.75 * 0.43 + 509.80 * 3.05 * 0.71 + 220 * 3.10 * 1) / (4.60 * 0.14 + 3.05 * 0.14 + 3.85 * 0.29 + 3.75 * 0.43 + 3.05 * 0.71 + 3.10 * 1) = 482.64152585170496
p2 = (509.80 * 3.05 * 0.71 + 947.37 * 3.85 * 0.29 + 617.98 * 3.75 * 0.43 + 220 * 3.10 * 1) / max_coefficients = 257.7750841750842
score = 482.64152585170496 * 0.5 + 257.7750841750842 * 0.5 = 370.2083050133946
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-03 | 110 -> 112 | 369.35 -> 370.21 | |
| 2026-05-02 | 109 -> 110 | 369.35 | |
| 2026-05-01 | 99 -> 109 | 400.05 -> 369.35 |
SPB Riichi Open 2024: 43% -> 29% |
| 2026-04-27 | 100 -> 99 | 400.05 | |
| 2026-04-19 | 99 -> 100 | 400.05 | |
| 2026-04-13 | 92 -> 99 | 413.99 -> 400.05 |
Moscow Riichi 2024: 57% -> 43% |
| 2026-04-09 | 92 | 413.88 -> 413.99 |
Agari Summer Tournament 2024: 29% -> 14% |
| 2026-04-05 | 82 -> 92 | 466.84 -> 413.88 |
Moscow Riichi 2026: 0% -> 100% |
| 2026-04-02 | 81 -> 82 | 470.79 -> 466.84 |
Agari Winter Tournament 2025: 86% -> 71% |
| 2026-03-14 | 83 -> 81 | 470.79 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 220 |
|
40/51 | 100% | 3.10 | RR | Moscow Riichi 2026 | Moscow | |
| 2 | 510 |
|
26/52 | 71% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 3 | 618 |
|
35/90 | 43% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 4 | 947 |
|
6/96 | 29% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 5 | 510 |
|
26/52 | 14% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 6 | 505 |
|
54/108 | 14% | 4.60 | RR | X Russian Championship | Perm | |
| 7 | 869 |
|
15/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 8 | 701 |
|
27/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 9 | 200 |
|
61/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 10 | 937 |
|
8/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 11 | 697 |
|
21/67 | 0% | 3.45 | RR | Tenpai can't buy happiness | Perm | |
| 12 | 106 |
|
43/48 | 0% | 3.10 | RR | Agari team tournament | Moscow | |
| 13 | 707 |
|
23/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg | |
| 14 | 323 |
|
22/32 | 0% | 2.70 | RR | The last chance: back to 2019 | Moscow | |
| 15 | 477 |
|
59/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
| 16 | 371 |
|
23/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 | Moscow | |
| 17 | 254 |
|
48/64 | 0% | 3.45 | EMA | White Dragon Tournament | Moscow |