Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Common russian riichi rating (CRR)

Rating date Aug. 3, 2025 (latest changes Aug. 3, 2025).

50 place (579.67).

max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35

p1 = (869.16 * 4 * 0.14 + 504.67 * 4.60 * 0.71 + 225.81 * 1.80 * 0.71 + 509.80 * 3.05 * 0.86 + 947.37 * 3.85 * 1 + 617.98 * 3.75 * 1 + 217.39 * 2.80 * 1 + 509.80 * 3.05 * 1) / (4 * 0.14 + 4.60 * 0.71 + 1.80 * 0.71 + 3.05 * 0.86 + 3.85 * 1 + 3.75 * 1 + 2.80 * 1 + 3.05 * 1) = 561.4337532757038

p2 = (947.37 * 3.85 * 1 + 617.98 * 3.75 * 1 + 504.67 * 4.60 * 0.71 + 509.80 * 3.05 * 1) / max_coefficients = 597.9107491856678

score = 561.4337532757038 * 0.5 + 597.9107491856678 * 0.5 = 579.6722512306858

Rating changes

Show

all results
Date Place Points Reason
2025-08-03 49 -> 50 579.67
2025-07-30 50 -> 49 579.67
2025-07-19 51 -> 50 577.66 -> 579.67

"Green Dragon" in the Secret Chamber: 86% -> 71%
2025-07-13 48 -> 51 577.66
2025-07-12 50 -> 48 581.88 -> 577.66

X Russian Championship: 86% -> 71%
2025-07-10 51 -> 50 581.88
2025-07-05 52 -> 51 581.88
2025-07-03 50 -> 52 585.83 -> 581.88

SPB Riichi Open 2023: 29% -> 14%
2025-06-25 49 -> 50 585.83
2025-06-15 44 -> 49 594.83 -> 585.83

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 510 2025-02-02 26/52 100% 3.05 RR Agari Winter Tournament 2025 Moscow
2 217 2024-12-01 19/24 100% 2.80 CRR Riichi never changing Moscow
3 618 2024-10-13 35/90 100% 3.75 RR Moscow Riichi 2024 Moscow
4 947 2024-09-01 6/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 510 2024-06-09 26/52 86% 3.05 RR Agari Summer Tournament 2024 Moscow
6 226 2024-05-19 25/32 71% 1.80 CRR "Green Dragon" in the Secret Chamber Korolyov
7 505 2024-05-12 54/108 71% 4.60 RR X Russian Championship Perm
8 869 2023-09-03 15/108 14% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 701 2023-06-11 27/88 0% 3.75 RR Money can not buy tenpai Perm
10 652 2022-12-18 9/24 0% 2.80 CRR Meeting in the billiard room Moscow
11 200 2022-11-06 61/76 0% 4.20 RR IX Russian Riichi Championship Perm
12 937 2022-06-12 8/112 0% 4.05 RR Moscow Riichi 2022 Moscow
13 701 2022-03-20 21/68 0% 3.50 RR Tenpai can't buy happiness Perm
14 106 2021-12-19 43/48 0% 3.10 RR Agari team tournament Moscow
15 707 2021-11-28 23/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
16 323 2020-01-26 22/32 0% 2.70 RR The last chance: back to 2019 Moscow
17 477 2019-12-15 59/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
18 371 2019-07-21 23/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
19 254 2018-12-16 48/64 0% 3.45 EMA White Dragon Tournament Moscow