Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Internal rating (RR)

Rating date Dec. 18, 2023 (latest changes Dec. 18, 2023).

6 place (639.61).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.43) = 13.085650000000001

p1 = (106.38 * 3.10 * 0.14 + 701.49 * 3.50 * 0.29 + 936.94 * 4.05 * 0.43 + 200 * 4.20 * 0.86 + 701.15 * 3.75 * 1 + 869.16 * 4 * 1) / (3.10 * 0.14 + 3.50 * 0.29 + 4.05 * 0.43 + 4.20 * 0.86 + 3.75 * 1 + 4 * 1) = 633.293389103829

p2 = (869.16 * 4 * 1 + 701.15 * 3.75 * 1 + 936.94 * 4.05 * 0.43 + 200 * 4.20 * 0.86) / max_coefficients = 645.9190028771975

score = 633.293389103829 * 0.5 + 645.9190028771975 * 0.5 = 639.6061959905132

Rating changes

Show

all results
Date Place Points Reason
2023-12-12 5 -> 6 651.58 -> 639.61

Moscow Riichi 2022: 57% -> 43%
2023-12-09 79 -> 5 284.81 -> 651.58
2021-02-01 122 -> 79 323.12 -> 284.81
2020-02-01 122 323.12

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 869 2023-09-03 15/108 100% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
2 701 2023-06-11 27/88 100% 3.75 RR Money can not buy tenpai Perm
3 200 2022-11-06 61/76 86% 4.20 RR IX Russian Riichi Championship Perm
4 937 2022-06-12 8/112 43% 4.05 RR Moscow Riichi 2022 Moscow
5 701 2022-03-20 21/68 29% 3.50 RR Tenpai can't buy happiness Perm
6 106 2021-12-19 43/48 14% 3.10 RR Agari team tournament Moscow
7 707 2021-11-28 23/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
8 323 2020-01-26 22/32 0% 2.70 RR The last chance: back to 2019 Moscow
9 477 2019-12-15 59/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
10 371 2019-07-21 23/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
11 254 2018-12-16 48/64 0% 3.45 EMA White Dragon Tournament Moscow