Bogatikov Aleksander

From Moscow, Russia

EMA: 15990107

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Common russian riichi rating (CRR)

Rating date Feb. 1, 2020 (latest changes Feb. 1, 2020).

117 place (378.88).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.85 * 1 + 3.45 * 1) = 15.55

p1 = (523.81 * 3.45 * 0.86 + 756.76 * 4.05 * 1 + 0 + 0 + 0) / (3.45 * 0.86 + 4.05 * 1 + 1 + 1 + 1) = 461.05349308158947

p2 = (756.76 * 4.05 * 1 + 523.81 * 3.45 * 0.86) / max_coefficients = 296.7048231511254

score = 461.05349308158947 * 0.5 + 296.7048231511254 * 0.5 = 378.8791581163574

Rating changes

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all results
Date Place Points Reason
2020-02-01 117 378.88

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 757 2019-12-15 28/112 100% 4.05 EMA VIII Russian Riichi Championship
2 524 2018-12-16 31/64 86% 3.45 EMA White Dragon Tournament
3 218 2016-09-11 69/88 0% 3.45 EMA V Russian Riichi Championship 2016
4 788 2016-03-13 22/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
5 373 2015-10-18 33/52 0% 2.90 EMA Russian Open Riichi Championship 2015
6 257 2015-08-22 27/36 0% 1.70 EMA Nizhny Novgorod Riichi Championship 2015
7 512 2015-03-08 22/44 0% 2.50 EMA Moscow Riichi Championship 2015
8 455 2015-01-25 7/12 0% 0.90 CRR "Haku no Ten" winter riichi mahjong tournament 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 EMA Russian Riichi Championship 2013
15 545 2013-05-19 26/56 0% 3.00 RR "Japanese House" riichi mahjong cup 2013