Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Internal rating (RR)

Rating date May 4, 2021 (latest changes May 4, 2021).

72 place (263.16).

max_coefficients = (2.90 * 0.86 + 4.05 * 0.57 + 3.45 * 0.57 + 2.70 * 0.71) = 8.6997

p1 = (371.43 * 3.20 * 0.29 + 477.48 * 4.05 * 0.57 + 322.58 * 2.70 * 0.71 + 0 + 0) / (3.20 * 0.29 + 4.05 * 0.57 + 2.70 * 0.71 + 1 + 1) = 288.75984697541713

p2 = (477.48 * 4.05 * 0.57 + 322.58 * 2.70 * 0.71 + 371.43 * 3.20 * 0.29) / max_coefficients = 237.55531799947127

score = 288.75984697541713 * 0.5 + 237.55531799947127 * 0.5 = 263.1575824874442

Rating changes

Show

Date Place Points Reason
2021-05-04 81 -> 72 259.57 -> 263.16
2021-04-25 82 -> 81 259.57
2021-04-15 79 -> 82 274.11 -> 259.57

VIII Russian Riichi Championship: 71% -> 57%

2021-03-26 78 -> 79 276.62 -> 274.11

The last chance: back to 2019: 86% -> 71%

2021-03-24 80 -> 78 273.37 -> 276.62
2021-03-21 77 -> 80 283.53 -> 273.37

Moscow Open Riichi Marathon 2019: 43% -> 29%

2021-03-17 78 -> 77 283.53
2021-03-08 82 -> 78 278.44 -> 283.53
2021-03-04 84 -> 82 273.50 -> 278.44
2021-02-25 85 -> 84 273.50

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 323 2020-01-26 22/32 71% 2.70 RR The last chance: back to 2019
2 477 2019-12-15 59/112 57% 4.05 EMA VIII Russian Riichi Championship
3 371 2019-07-21 23/36 29% 3.20 RR Moscow Open Riichi Marathon 2019
4 254 2018-12-16 48/64 0% 3.45 EMA White Dragon Tournament