Dubrovin Sergey

From Saint Petersburg, Russia

EMA: 15990313

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Common russian riichi rating (CRR)

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

183 place (273.21).

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

p1 = (290.32 * 2.70 * 0.14 + 591.55 * 3.55 * 0.43 + 391.30 * 2.50 * 0.57 + 410.26 * 2.90 * 0.86 + 0) / (2.70 * 0.14 + 3.55 * 0.43 + 2.50 * 0.57 + 2.90 * 0.86 + 1) = 379.8004823021499

p2 = (410.26 * 2.90 * 0.86 + 591.55 * 3.55 * 0.43 + 391.30 * 2.50 * 0.57 + 290.32 * 2.70 * 0.14) / max_coefficients = 166.6102893890675

score = 379.8004823021499 * 0.5 + 166.6102893890675 * 0.5 = 273.2053858456087

Rating changes

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all results
Date Place Points Reason
2020-02-01 183 273.21

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 410 2018-12-23 24/40 86% 2.90 RR North Cup 2018
2 391 2018-09-23 15/24 57% 2.50 RR West cup 2018
3 592 2018-06-11 30/72 43% 3.55 EMA RCR Saint Petersburg South Cup 2018
4 290 2018-03-04 23/32 14% 2.70 RR East Cup 2018
5 410 2017-12-11 50/84 0% 3.40 EMA VI Russian Riichi Championship 2017
6 641 2017-06-03 15/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
7 209 2017-03-18 35/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
8 14 2016-12-04 71/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016