Karpov Alexandr

From Novosibirsk, Russia

EMA: 15020011

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Internal rating (RR)

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

50 place (562.36).

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

p1 = (304.35 * 2.20 * 0.57 + 191.49 * 3.10 * 0.57 + 241.76 * 3.80 * 0.71 + 836.36 * 3 * 0.86 + 578.31 * 4.20 * 1 + 962.96 * 2.30 * 1 + 789.47 * 2.10 * 1) / (2.20 * 0.57 + 3.10 * 0.57 + 3.80 * 0.71 + 3 * 0.86 + 4.20 * 1 + 2.30 * 1 + 2.10 * 1) = 581.1821644241535

p2 = (578.31 * 4.20 * 1 + 962.96 * 2.30 * 1 + 836.36 * 3 * 0.86 + 789.47 * 2.10 * 1) / max_coefficients = 543.5472668810289

score = 581.1821644241535 * 0.5 + 543.5472668810289 * 0.5 = 562.3647156525913

Rating changes

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all results
Date Place Points Reason
2020-02-01 50 562.36

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 789 2020-01-05 5/20 100% 2.10 EMA Snow Dragon Tournament
2 963 2019-08-25 2/28 100% 2.30 RR The Green dragon tournament
3 578 2019-05-04 36/84 100% 4.20 EMA Haru Shanten 2019
4 836 2019-01-05 10/56 86% 3.00 EMA Snow Dragon
5 242 2018-11-18 70/92 71% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
6 191 2018-08-19 39/48 57% 3.10 RR Moscow Riichi Open 2018
7 304 2018-08-12 17/24 57% 2.20 RR Siberian riichi
8 387 2018-01-05 20/32 0% 2.20 RR Russian riichi championship by JPML-B rules
9 739 2017-08-13 7/24 0% 2.20 EMA Siberia Cup 2017
10 457 2017-01-05 20/36 0% 2.50 RR Quick discard 2017
11 774 2016-05-03 8/32 0% 2.40 RR Siberia Cup 2016
12 977 2016-01-05 2/44 0% 1.90 RR Eighth winter tournament
13 600 2015-01-07 15/36 0% 1.70 RR Seventh winter tournament
14 739 2014-01-06 7/24 0% 1.40 RR Furiten tournament 2014
15 1000 2013-01-05 1/32 0% 2.00 RR Riichi tournament 2013