Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Internal rating (RR)

Rating date Oct. 19, 2026 (latest changes Oct. 16, 2026).

238 place (117.32).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (509.80 * 3.05 * 0.29 + 220 * 3.10 * 1 + 0 + 0 + 0) / (3.05 * 0.29 + 3.10 * 1 + 1 + 1 + 1) = 161.5518293710647

p2 = (220 * 3.10 * 1 + 509.80 * 3.05 * 0.29) / max_coefficients = 73.085009733939

score = 161.5518293710647 * 0.5 + 73.085009733939 * 0.5 = 117.31841955250187

Rating changes

Show

all results
Date Place Points Reason
2026-10-16 240 -> 238 117.32
2026-10-13 224 -> 240 159.27 -> 117.32

Moscow Riichi 2024: 14% -> 0%
2026-10-03 225 -> 224 159.27
2026-10-02 219 -> 225 175.45 -> 159.27

Agari Winter Tournament 2025: 43% -> 29%
2026-09-06 213 -> 219 175.45
2026-09-01 180 -> 213 240.88 -> 175.45

SPB Riichi Open 2024: 14% -> 0%
2026-08-31 180 240.65 -> 240.88
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

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 29% 3.05 RR Agari Winter Tournament 2025 Moscow
3 618 2024-10-13 35/90 0% 3.75 RR Moscow Riichi 2024 Moscow
4 947 2024-09-01 6/96 0% 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