Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Common russian riichi rating (CRR)

Rating date Dec. 11, 2024 (latest changes Dec. 11, 2024).

24 place (637.69).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (701.15 * 3.75 * 0.43 + 869.16 * 4 * 0.71 + 504.67 * 4.60 * 1 + 652.17 * 2.80 * 0.14 + 225.81 * 1.80 * 1 + 509.80 * 3.05 * 1 + 947.37 * 3.85 * 1 + 617.98 * 3.75 * 1 + 217.39 * 2.80 * 1) / (3.75 * 0.43 + 4 * 0.71 + 4.60 * 1 + 2.80 * 0.14 + 1.80 * 1 + 3.05 * 1 + 3.85 * 1 + 3.75 * 1 + 2.80 * 1) = 595.9063823485499

p2 = (947.37 * 3.85 * 1 + 869.16 * 4 * 0.71 + 504.67 * 4.60 * 1 + 617.98 * 3.75 * 1) / max_coefficients = 679.4731861198738

score = 595.9063823485499 * 0.5 + 679.4731861198738 * 0.5 = 637.6897842342119

Rating changes

Show

Date Place Points Reason
2024-12-11 25 -> 24 638.81 -> 637.69

Money can not buy tenpai: 57% -> 43%

2024-12-01 21 -> 25 662.55 -> 638.81

Riichi never changing: 0% -> 100%

2024-11-26 20 -> 21 662.55
2024-11-05 22 -> 20 656.75 -> 662.55
2024-11-03 20 -> 22 675.25 -> 656.75

SPB Riichi Open 2023: 86% -> 71%

2024-10-18 20 675.36 -> 675.25

Meeting in the billiard room: 29% -> 14%

2024-10-13 21 -> 20 660.19 -> 675.36

Moscow Riichi 2024: 0% -> 100%

2024-10-11 20 -> 21 671.34 -> 660.19

Money can not buy tenpai: 71% -> 57%

2024-09-06 21 -> 20 665.10 -> 671.34

IX Russian Riichi Championship: 29% -> 14%

2024-09-03 20 -> 21 671.22 -> 665.10

SPB Riichi Open 2023: 100% -> 86%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 217 2024-12-01 19/24 100% 2.80 CRR Riichi never changing
2 618 2024-10-13 35/90 100% 3.75 RR Moscow Riichi 2024
3 947 2024-09-01 6/96 100% 3.85 RR SPB Riichi Open 2024
4 510 2024-06-09 26/52 100% 3.05 RR Agari Summer Tournament 2024
5 226 2024-05-19 25/32 100% 1.80 CRR "Green Dragon" in the Secret Chamber
6 505 2024-05-12 54/108 100% 4.60 RR X Russian Championship
7 869 2023-09-03 15/108 71% 4.00 RR SPB Riichi Open 2023
8 701 2023-06-11 27/88 43% 3.75 RR Money can not buy tenpai
9 652 2022-12-18 9/24 14% 2.80 CRR Meeting in the billiard room
10 200 2022-11-06 61/76 0% 4.20 RR IX Russian Riichi Championship
11 937 2022-06-12 8/112 0% 4.05 RR Moscow Riichi 2022
12 701 2022-03-20 21/68 0% 3.50 RR Tenpai can't buy happiness
13 106 2021-12-19 43/48 0% 3.10 RR Agari team tournament
14 707 2021-11-28 23/76 0% 3.45 RR Saint Petersburg Open 2021
15 323 2020-01-26 22/32 0% 2.70 RR The last chance: back to 2019
16 477 2019-12-15 59/112 0% 4.05 EMA VIII Russian Riichi Championship
17 371 2019-07-21 23/36 0% 3.20 RR Moscow Open Riichi Marathon 2019
18 254 2018-12-16 48/64 0% 3.45 EMA White Dragon Tournament