Bogatikov Aleksander

From Moscow, Russia

EMA: 15990107

Player page

Common russian riichi rating (CRR)

Rating date Feb. 17, 2024 (latest changes Feb. 17, 2024).

96 place (288.41).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 2.90 * 1) = 13.650060000000002

p1 = (27.03 * 4.05 * 0.29 + 813.33 * 4.20 * 0.71 + 230.77 * 2.90 * 1 + 0 + 0) / (4.05 * 0.29 + 4.20 * 0.71 + 2.90 * 1 + 1 + 1) = 346.7483406746828

p2 = (813.33 * 4.20 * 0.71 + 230.77 * 2.90 * 1 + 27.03 * 4.05 * 0.29) / max_coefficients = 230.07591175423403

score = 346.7483406746828 * 0.5 + 230.07591175423403 * 0.5 = 288.41212621445845

Rating changes

Show

all results
Date Place Points Reason
2024-02-12 99 -> 96 279.38 -> 288.41

Moscow Riichi 2022: 43% -> 29%
2024-01-20 101 -> 99 279.38
2024-01-09 102 -> 101 279.38
2024-01-06 96 -> 102 305.87 -> 279.38

IX Russian Riichi Championship: 86% -> 71%
2024-01-05 98 -> 96 305.87
2024-01-03 99 -> 98 305.87
2023-12-27 100 -> 99 305.87
2023-12-19 102 -> 100 305.87
2023-12-12 104 -> 102 297.62 -> 305.87

Moscow Riichi 2022: 57% -> 43%
2023-11-28 107 -> 104 312.54 -> 297.62

Saint Petersburg Open 2021: 14% -> 0%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 231 2023-11-26 31/40 100% 2.90 CRR Autumn Agari tournament
2 813 2022-11-06 15/76 71% 4.20 RR IX Russian Riichi Championship
3 27 2022-06-12 109/112 29% 4.05 RR Moscow Riichi 2022
4 160 2021-11-28 64/76 0% 3.45 RR Saint Petersburg Open 2021
5 421 2020-02-02 12/20 0% 2.40 CRR double-burning-2020
6 757 2019-12-15 28/112 0% 4.05 EMA VIII Russian Riichi Championship
7 524 2018-12-16 31/64 0% 3.45 EMA White Dragon Tournament
8 218 2016-09-11 69/88 0% 3.45 EMA V Russian Riichi Championship 2016
9 788 2016-03-13 22/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
10 373 2015-10-18 33/52 0% 2.90 EMA Russian Open Riichi Championship 2015
11 257 2015-08-22 27/36 0% 1.70 EMA Nizhny Novgorod Riichi Championship 2015
12 512 2015-03-08 22/44 0% 2.50 EMA Moscow Riichi Championship 2015
13 455 2015-01-25 7/12 0% 0.90 CRR "Haku no Ten" winter riichi mahjong tournament 2015
14 0 2014-12-07 64/64 0% 3.15 EMA Russian Open Riichi Championship 2014
15 130 2014-10-18 21/24 0% 1.40 EMA Vologda Riichi Championship 2014
16 206 2014-09-21 51/64 0% 3.15 RR "Japanese House" riichi mahjong cup 2014
17 533 2014-06-29 8/16 0% 1.20 RR "Haku no Ten" summer riichi mahjong tournament 2014
18 493 2014-02-15 39/76 0% 2.50 RR Moscow Riichi 2014
19 254 2013-12-08 54/72 0% 3.25 EMA Russian Riichi Championship 2013
20 545 2013-05-19 26/56 0% 3.00 RR "Japanese House" riichi mahjong cup 2013