Grishina Olga
From Moscow, Russia
EMA: 15990379
Common russian riichi rating (CRR)
Rating date March 15, 2026 (latest changes March 15, 2026).
103 place (421.41).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (504.67 * 4.60 * 0.14 + 225.81 * 1.80 * 0.29 + 509.80 * 3.05 * 0.29 + 947.37 * 3.85 * 0.43 + 617.98 * 3.75 * 0.57 + 217.39 * 2.80 * 0.71 + 509.80 * 3.05 * 0.86) / (4.60 * 0.14 + 1.80 * 0.29 + 3.05 * 0.29 + 3.85 * 0.43 + 3.75 * 0.57 + 2.80 * 0.71 + 3.05 * 0.86) = 530.8142361177565
p2 = (947.37 * 3.85 * 0.43 + 509.80 * 3.05 * 0.86 + 617.98 * 3.75 * 0.57 + 509.80 * 3.05 * 0.29) / max_coefficients = 311.9986622073579
score = 530.8142361177565 * 0.5 + 311.9986622073579 * 0.5 = 421.40644916255724
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-03-12 | 104 -> 103 | 427.96 -> 421.41 |
X Russian Championship: 29% -> 14% |
| 2026-03-10 | 105 -> 104 | 427.96 | |
| 2026-03-07 | 106 -> 105 | 427.96 | |
| 2026-03-02 | 105 -> 106 | 427.96 | |
| 2026-03-01 | 97 -> 105 | 455.24 -> 427.96 |
SPB Riichi Open 2024: 57% -> 43% |
| 2026-02-23 | 91 -> 97 | 455.24 | |
| 2026-02-16 | 92 -> 91 | 455.24 | |
| 2026-02-13 | 91 -> 92 | 467.83 -> 455.24 |
Moscow Riichi 2024: 71% -> 57% |
| 2026-02-09 | 91 | 467.21 -> 467.83 |
Agari Summer Tournament 2024: 43% -> 29% |
| 2026-02-08 | 89 -> 91 | 467.21 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 510 |
|
26/52 | 86% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 2 | 217 |
|
19/24 | 71% | 2.80 | CRR | Riichi never changing | Moscow | |
| 3 | 618 |
|
35/90 | 57% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 4 | 947 |
|
6/96 | 43% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 5 | 510 |
|
26/52 | 29% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 6 | 226 |
|
25/32 | 29% | 1.80 | CRR | "Green Dragon" in the Secret Chamber | Korolyov | |
| 7 | 505 |
|
54/108 | 14% | 4.60 | RR | X Russian Championship | Perm | |
| 8 | 869 |
|
15/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 9 | 701 |
|
27/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 10 | 652 |
|
9/24 | 0% | 2.80 | CRR | Meeting in the billiard room | Moscow | |
| 11 | 200 |
|
61/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 12 | 937 |
|
8/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 13 | 697 |
|
21/67 | 0% | 3.45 | RR | Tenpai can't buy happiness | Perm | |
| 14 | 106 |
|
43/48 | 0% | 3.10 | RR | Agari team tournament | Moscow | |
| 15 | 707 |
|
23/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg | |
| 16 | 323 |
|
22/32 | 0% | 2.70 | RR | The last chance: back to 2019 | Moscow | |
| 17 | 477 |
|
59/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
| 18 | 371 |
|
23/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 | Moscow | |
| 19 | 254 |
|
48/64 | 0% | 3.45 | EMA | White Dragon Tournament | Moscow |