Dubrovin Sergey

From Saint Petersburg, Russia

EMA: 15990313

Player page

Common russian riichi rating (CRR)

Rating date April 22, 2024 (latest changes April 22, 2024).

170 place (90.67).

max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.90 * 1) = 13.700000000000001

p1 = (347.83 * 1.40 * 0.86 + 173.91 * 2.10 * 1 + 0 + 0 + 0) / (1.40 * 0.86 + 2.10 * 1 + 1 + 1 + 1) = 124.22181798556814

p2 = (347.83 * 1.40 * 0.86 + 173.91 * 2.10 * 1) / max_coefficients = 57.12335766423357

score = 124.22181798556814 * 0.5 + 57.12335766423357 * 0.5 = 90.67258782490086

Rating changes

Show

all results
Date Place Points Reason
2024-04-22 169 -> 170 96.65 -> 90.67

Fire cup 2023: 100% -> 86%
2024-04-17 170 -> 169 96.65
2024-03-30 183 -> 170 273.21 -> 96.65

Seihoku spring tournament 2024: 0% -> 100%
2020-02-01 183 273.21

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 174 2024-03-30 39/47 100% 2.10 RR Seihoku spring tournament 2024
2 348 2023-04-22 16/24 86% 1.40 CRR Fire cup 2023
3 410 2018-12-23 24/40 0% 2.90 RR North Cup 2018
4 391 2018-09-23 15/24 0% 2.50 RR West cup 2018
5 592 2018-06-11 30/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
6 290 2018-03-04 23/32 0% 2.70 RR East Cup 2018
7 410 2017-12-11 50/84 0% 3.40 EMA VI Russian Riichi Championship 2017
8 641 2017-06-03 15/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
9 209 2017-03-18 35/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
10 14 2016-12-04 71/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016