Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Common russian riichi rating (CRR)

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

14 place (623.96).

max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.90 * 1) = 13.700000000000001

p1 = (652.17 * 2.80 * 0.57 + 936.94 * 4.05 * 0.14 + 200 * 4.20 * 0.43 + 701.15 * 3.75 * 1 + 869.16 * 4 * 1) / (2.80 * 0.57 + 4.05 * 0.14 + 4.20 * 0.43 + 3.75 * 1 + 4 * 1) = 686.4862814008441

p2 = (869.16 * 4 * 1 + 701.15 * 3.75 * 1 + 652.17 * 2.80 * 0.57 + 936.94 * 4.05 * 0.14) / max_coefficients = 561.4328467153284

score = 686.4862814008441 * 0.5 + 561.4328467153284 * 0.5 = 623.9595640580862

Rating changes

Show

all results
Date Place Points Reason
2024-05-06 18 -> 14 612.13 -> 623.96

IX Russian Riichi Championship: 57% -> 43%
2024-04-18 17 -> 18 621.48 -> 612.13

Meeting in the billiard room: 71% -> 57%
2024-04-12 12 -> 17 647.22 -> 621.48

Moscow Riichi 2022: 29% -> 14%
2024-03-30 10 -> 12 647.22
2024-03-20 11 -> 10 647.71 -> 647.22

Tenpai can't buy happiness: 14% -> 0%
2024-03-10 6 -> 11 663.16 -> 647.71
2024-03-06 10 -> 6 638.95 -> 663.16

IX Russian Riichi Championship: 71% -> 57%
2024-02-25 11 -> 10 638.95
2024-02-18 10 -> 11 648.45 -> 638.95

Meeting in the billiard room: 86% -> 71%
2024-02-12 6 -> 10 673.61 -> 648.45

Moscow Riichi 2022: 43% -> 29%

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
3 652 2022-12-18 9/24 57% 2.80 CRR Meeting in the billiard room
4 200 2022-11-06 61/76 43% 4.20 RR IX Russian Riichi Championship
5 937 2022-06-12 8/112 14% 4.05 RR Moscow Riichi 2022
6 701 2022-03-20 21/68 0% 3.50 RR Tenpai can't buy happiness
7 106 2021-12-19 43/48 0% 3.10 RR Agari team tournament
8 707 2021-11-28 23/76 0% 3.45 RR Saint Petersburg Open 2021
9 323 2020-01-26 22/32 0% 2.70 RR The last chance: back to 2019
10 477 2019-12-15 59/112 0% 4.05 EMA VIII Russian Riichi Championship
11 371 2019-07-21 23/36 0% 3.20 RR Moscow Open Riichi Marathon 2019
12 254 2018-12-16 48/64 0% 3.45 EMA White Dragon Tournament