Bogatikov Aleksander

From Moscow, Russia

EMA: 15990107

Player page

Internal rating (RR)

Rating date May 19, 2022 (latest changes April 30, 2022).

112 place (336.25).

max_coefficients = (4.05 * 1 + 3.85 * 1 + 3.50 * 1 + 3.45 * 1) = 14.850000000000001

p1 = (523.81 * 3.45 * 0.29 + 756.76 * 4.05 * 1 + 160 * 3.45 * 1 + 0 + 0) / (3.45 * 0.29 + 4.05 * 1 + 3.45 * 1 + 1 + 1) = 394.1724249248855

p2 = (756.76 * 4.05 * 1 + 160 * 3.45 * 1 + 523.81 * 3.45 * 0.29) / max_coefficients = 278.3272727272727

score = 394.1724249248855 * 0.5 + 278.3272727272727 * 0.5 = 336.2498488260791

Rating changes

Show

Date Place Points Reason
2022-04-30 121 -> 112 336.25
2022-03-30 124 -> 121 347.86 -> 336.25

White Dragon Tournament: 43% -> 29%

2022-03-20 118 -> 124 348.36 -> 347.86
2022-02-28 122 -> 118 346.87 -> 348.36
2022-01-30 121 -> 122 358.16 -> 346.87

White Dragon Tournament: 57% -> 43%

2021-12-30 124 -> 121 352.16 -> 358.16
2021-12-19 123 -> 124 352.16
2021-11-30 125 -> 123 362.90 -> 352.16

White Dragon Tournament: 71% -> 57%

2021-11-28 113 -> 125 368.96 -> 362.90

Saint Petersburg Open 2021: 0% -> 100%

2021-11-06 109 -> 113 368.96

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 160 2021-11-28 64/76 100% 3.45 RR Saint Petersburg Open 2021
2 757 2019-12-15 28/112 100% 4.05 EMA VIII Russian Riichi Championship
3 524 2018-12-16 31/64 29% 3.45 EMA White Dragon Tournament
4 218 2016-09-11 69/88 0% 3.45 EMA V Russian Riichi Championship 2016
5 788 2016-03-13 22/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
6 373 2015-10-18 33/52 0% 2.90 EMA Russian Open Riichi Championship 2015
7 257 2015-08-22 27/36 0% 1.70 EMA Nizhny Novgorod Riichi Championship 2015
8 512 2015-03-08 22/44 0% 2.50 EMA Moscow Riichi Championship 2015
9 0 2014-12-07 64/64 0% 3.15 EMA Russian Open Riichi Championship 2014
10 130 2014-10-18 21/24 0% 1.40 EMA Vologda Riichi Championship 2014
11 206 2014-09-21 51/64 0% 3.15 RR "Japanese House" riichi mahjong cup 2014
12 533 2014-06-29 8/16 0% 1.20 RR "Haku no Ten" summer riichi mahjong tournament 2014
13 493 2014-02-15 39/76 0% 2.50 RR Moscow Riichi 2014
14 254 2013-12-08 54/72 0% 3.25 RR Russian Riichi Championship 2013
15 545 2013-05-19 26/56 0% 3.00 RR "Japanese House" riichi mahjong cup 2013