Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Internal rating (RR)

Rating date May 6, 2024 (latest changes May 6, 2024).

11 place (586.50).

max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.10 * 1) = 12.9

p1 = (936.94 * 4.05 * 0.14 + 200 * 4.20 * 0.43 + 701.15 * 3.75 * 1 + 869.16 * 4 * 1 + 0) / (4.05 * 0.14 + 4.20 * 0.43 + 3.75 * 1 + 4 * 1 + 1) = 629.7335801988792

p2 = (869.16 * 4 * 1 + 701.15 * 3.75 * 1 + 936.94 * 4.05 * 0.14 + 200 * 4.20 * 0.43) / max_coefficients = 543.2728682170542

score = 629.7335801988792 * 0.5 + 543.2728682170542 * 0.5 = 586.5032242079667

Rating changes

Show

all results
Date Place Points Reason
2024-05-06 13 -> 11 573.89 -> 586.50

IX Russian Riichi Championship: 57% -> 43%
2024-04-12 9 -> 13 602.15 -> 573.89

Moscow Riichi 2022: 29% -> 14%
2024-03-30 8 -> 9 602.15
2024-03-20 7 -> 8 630.20 -> 602.15

Tenpai can't buy happiness: 14% -> 0%
2024-03-10 4 -> 7 678.84 -> 630.20
2024-03-06 4 655.19 -> 678.84

IX Russian Riichi Championship: 71% -> 57%
2024-02-12 4 668.00 -> 655.19

Moscow Riichi 2022: 43% -> 29%
2024-01-20 4 672.67 -> 668.00

Tenpai can't buy happiness: 29% -> 14%
2024-01-06 5 -> 4 647.89 -> 672.67

IX Russian Riichi Championship: 86% -> 71%
2023-12-19 6 -> 5 639.61 -> 647.89

Agari team tournament: 14% -> 0%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 869 2023-09-03 15/108 100% 4.00 RR SPB Riichi Open 2023
2 701 2023-06-11 27/88 100% 3.75 RR Money can not buy tenpai
3 200 2022-11-06 61/76 43% 4.20 RR IX Russian Riichi Championship
4 937 2022-06-12 8/112 14% 4.05 RR Moscow Riichi 2022
5 701 2022-03-20 21/68 0% 3.50 RR Tenpai can't buy happiness
6 106 2021-12-19 43/48 0% 3.10 RR Agari team tournament
7 707 2021-11-28 23/76 0% 3.45 RR Saint Petersburg Open 2021
8 323 2020-01-26 22/32 0% 2.70 RR The last chance: back to 2019
9 477 2019-12-15 59/112 0% 4.05 EMA VIII Russian Riichi Championship
10 371 2019-07-21 23/36 0% 3.20 RR Moscow Open Riichi Marathon 2019
11 254 2018-12-16 48/64 0% 3.45 EMA White Dragon Tournament