Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Internal rating (RR)

Rating date Aug. 17, 2026 (latest changes Aug. 16, 2026).

179 place (240.65).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 15.459999999999999

p1 = (947.37 * 3.85 * 0.14 + 617.98 * 3.75 * 0.14 + 509.80 * 3.05 * 0.43 + 220 * 3.10 * 1 + 0) / (3.85 * 0.14 + 3.75 * 0.14 + 3.05 * 0.43 + 3.10 * 1 + 1) = 338.93554403251363

p2 = (220 * 3.10 * 1 + 509.80 * 3.05 * 0.43 + 947.37 * 3.85 * 0.14 + 617.98 * 3.75 * 0.14) / max_coefficients = 142.35446313065975

score = 338.93554403251363 * 0.5 + 142.35446313065975 * 0.5 = 240.6450035815867

Rating changes

Show

all results
Date Place Points Reason
2026-08-16 180 -> 179 240.65
2026-08-15 182 -> 180 240.12 -> 240.65
2026-08-13 173 -> 182 261.38 -> 240.12

Moscow Riichi 2024: 29% -> 14%
2026-08-04 175 -> 173 261.38
2026-08-03 176 -> 175 261.38
2026-08-02 172 -> 176 272.87 -> 261.38

Agari Winter Tournament 2025: 57% -> 43%
2026-07-26 173 -> 172 272.87
2026-07-25 172 -> 173 272.87
2026-07-18 171 -> 172 272.87
2026-07-12 167 -> 171 272.87

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 220 2026-04-05 40/51 100% 3.10 RR Moscow Riichi 2026 Moscow
2 510 2025-02-02 26/52 43% 3.05 RR Agari Winter Tournament 2025 Moscow
3 618 2024-10-13 35/90 14% 3.75 RR Moscow Riichi 2024 Moscow
4 947 2024-09-01 6/96 14% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 510 2024-06-09 26/52 0% 3.05 RR Agari Summer Tournament 2024 Moscow
6 505 2024-05-12 54/108 0% 4.60 RR X Russian Championship Perm
7 869 2023-09-03 15/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
8 701 2023-06-11 27/88 0% 3.75 RR Money can not buy tenpai Perm
9 200 2022-11-06 61/76 0% 4.20 RR IX Russian Riichi Championship Perm
10 937 2022-06-12 8/112 0% 4.05 RR Moscow Riichi 2022 Moscow
11 697 2022-03-20 21/67 0% 3.45 RR Tenpai can't buy happiness Perm
12 106 2021-12-19 43/48 0% 3.10 RR Agari team tournament Moscow
13 707 2021-11-28 23/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
14 323 2020-01-26 22/32 0% 2.70 RR The last chance: back to 2019 Moscow
15 477 2019-12-15 59/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
16 371 2019-07-21 23/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
17 254 2018-12-16 48/64 0% 3.45 EMA White Dragon Tournament Moscow