Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Internal rating (RR)

Rating date Sept. 20, 2023 (latest changes Sept. 20, 2023).

9 place (648.11).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915

p1 = (106.38 * 3.10 * 0.29 + 706.67 * 3.45 * 0.29 + 701.49 * 3.50 * 0.43 + 936.94 * 4.05 * 0.71 + 200 * 4.20 * 1 + 701.15 * 3.75 * 1 + 869.16 * 4 * 1) / (3.10 * 0.29 + 3.45 * 0.29 + 3.50 * 0.43 + 4.05 * 0.71 + 4.20 * 1 + 3.75 * 1 + 4 * 1) = 631.3428697702635

p2 = (869.16 * 4 * 1 + 936.94 * 4.05 * 0.71 + 701.15 * 3.75 * 1 + 701.49 * 3.50 * 0.43) / max_coefficients = 664.8788327629715

score = 631.3428697702635 * 0.5 + 664.8788327629715 * 0.5 = 648.1108512666175

Rating changes

Show

all results
Date Place Points Reason
2023-09-20 9 660.86 -> 648.11

Tenpai can't buy happiness: 57% -> 43%
2023-09-03 14 -> 9 579.75 -> 660.86

SPB Riichi Open 2023: 0% -> 100%
2023-08-19 15 -> 14 572.99 -> 579.75

Agari team tournament: 43% -> 29%
2023-08-12 13 -> 15 587.46 -> 572.99

Moscow Riichi 2022: 86% -> 71%
2023-07-28 14 -> 13 597.18 -> 587.46

Saint Petersburg Open 2021: 43% -> 29%
2023-07-20 11 -> 14 600.54 -> 597.18

Tenpai can't buy happiness: 71% -> 57%
2023-07-06 13 -> 11 600.54
2023-06-19 13 594.47 -> 600.54

Agari team tournament: 57% -> 43%
2023-06-12 11 -> 13 606.78 -> 594.47

Moscow Riichi 2022: 100% -> 86%
2023-06-11 13 -> 11 569.03 -> 606.78

Money can not buy tenpai: 0% -> 100%

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 61/76 100% 4.20 RR IX Russian Riichi Championship
4 937 2022-06-12 8/112 71% 4.05 RR Moscow Riichi 2022
5 701 2022-03-20 21/68 43% 3.50 RR Tenpai can't buy happiness
6 106 2021-12-19 43/48 29% 3.10 RR Agari team tournament
7 707 2021-11-28 23/76 29% 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