Grishina Olga

From Moscow, Russia

EMA: 15990379

Player page

Internal rating (RR)

Rating date Sept. 28, 2021 (latest changes Sept. 26, 2021).

61 place (184.41).

max_coefficients = (2.90 * 0.43 + 4.05 * 0.29 + 2.70 * 0.29 + 2.50 * 0.29) = 3.8856650000000004

p1 = (477.48 * 4.05 * 0.29 + 322.58 * 2.70 * 0.29 + 0 + 0 + 0) / (4.05 * 0.29 + 2.70 * 0.29 + 1 + 1 + 1) = 162.58984777238393

p2 = (477.48 * 4.05 * 0.29 + 322.58 * 2.70 * 0.29) / max_coefficients = 206.2246745409087

score = 162.58984777238393 * 0.5 + 206.2246745409087 * 0.5 = 184.4072611566463

Rating changes

Show

Date Place Points Reason
2021-09-26 57 -> 61 195.47 -> 184.41

The last chance: back to 2019: 43% -> 29%

2021-09-24 58 -> 57 189.00 -> 195.47
2021-09-08 67 -> 58 180.48 -> 189.00
2021-09-05 69 -> 67 180.48
2021-09-04 72 -> 69 178.38 -> 180.48
2021-08-25 76 -> 72 178.38
2021-08-15 69 -> 76 208.38 -> 178.38

VIII Russian Riichi Championship: 43% -> 29%

2021-08-03 71 -> 69 208.38
2021-07-26 70 -> 71 215.52 -> 208.38

The last chance: back to 2019: 57% -> 43%

2021-07-24 71 -> 70 209.04 -> 215.52

Tournaments

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