Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Internal rating (RR)

Rating date Jan. 28, 2023 (latest changes Jan. 28, 2023).

14 place (576.59).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.10 * 0.86) = 14.40701

p1 = (706.67 * 3.45 * 0.71 + 106.38 * 3.10 * 0.86 + 701.49 * 3.50 * 1 + 936.94 * 4.05 * 1 + 200 * 4.20 * 1) / (3.45 * 0.71 + 3.10 * 0.86 + 3.50 * 1 + 4.05 * 1 + 4.20 * 1) = 540.2017444370915

p2 = (936.94 * 4.05 * 1 + 701.49 * 3.50 * 1 + 706.67 * 3.45 * 0.71 + 200 * 4.20 * 1) / max_coefficients = 612.9842347579408

score = 540.2017444370915 * 0.5 + 612.9842347579408 * 0.5 = 576.5929895975162

Rating changes

Show

all results
Date Place Points Reason
2023-01-28 15 -> 14 584.54 -> 576.59

Saint Petersburg Open 2021: 86% -> 71%
2022-12-19 16 -> 15 576.08 -> 584.54

Agari team tournament: 100% -> 86%
2022-11-28 15 -> 16 582.75 -> 576.08

Saint Petersburg Open 2021: 100% -> 86%
2022-11-06 11 -> 15 613.90 -> 582.75

IX Russian Riichi Championship: 0% -> 100%
2022-10-14 82 -> 11 284.81 -> 613.90
2021-02-01 125 -> 82 323.12 -> 284.81
2020-02-01 125 323.12

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 200 2022-11-06 61/76 100% 4.20 RR IX Russian Riichi Championship
2 937 2022-06-12 8/112 100% 4.05 RR Moscow Riichi 2022
3 701 2022-03-20 21/68 100% 3.50 RR Tenpai can't buy happiness
4 106 2021-12-19 43/48 86% 3.10 RR Agari team tournament
5 707 2021-11-28 23/76 71% 3.45 RR Saint Petersburg Open 2021
6 323 2020-01-26 22/32 0% 2.70 RR The last chance: back to 2019
7 477 2019-12-15 59/112 0% 4.05 EMA VIII Russian Riichi Championship
8 371 2019-07-21 23/36 0% 3.20 RR Moscow Open Riichi Marathon 2019
9 254 2018-12-16 48/64 0% 3.45 EMA White Dragon Tournament