Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Common russian riichi rating (CRR)

Rating date March 15, 2026 (latest changes March 15, 2026).

103 place (421.41).

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

Show

all results
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 2025-02-02 26/52 86% 3.05 RR Agari Winter Tournament 2025 Moscow
2 217 2024-12-01 19/24 71% 2.80 CRR Riichi never changing Moscow
3 618 2024-10-13 35/90 57% 3.75 RR Moscow Riichi 2024 Moscow
4 947 2024-09-01 6/96 43% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 510 2024-06-09 26/52 29% 3.05 RR Agari Summer Tournament 2024 Moscow
6 226 2024-05-19 25/32 29% 1.80 CRR "Green Dragon" in the Secret Chamber Korolyov
7 505 2024-05-12 54/108 14% 4.60 RR X Russian Championship Perm
8 869 2023-09-03 15/108 0% 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
13 697 2022-03-20 21/67 0% 3.45 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