Dubrovin Sergey

From Saint Petersburg, Russia

EMA: 15990313

Player page

Common russian riichi rating (CRR)

Rating date May 25, 2024 (latest changes May 25, 2024).

189 place (87.52).

max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 1 + 3.05 * 1) = 15.399999999999999

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 = 50.81753246753247

score = 124.22181798556814 * 0.5 + 50.81753246753247 * 0.5 = 87.5196752265503

Rating changes

Show

all results
Date Place Points Reason
2024-05-25 185 -> 189 87.52
2024-05-19 182 -> 185 87.52
2024-05-12 169 -> 182 90.67 -> 87.52
2024-05-06 170 -> 169 90.67
2024-05-05 169 -> 170 90.67
2024-04-22 168 -> 169 96.65 -> 90.67

Fire cup 2023: 100% -> 86%
2024-04-17 169 -> 168 96.65
2024-03-30 182 -> 169 273.21 -> 96.65

Seihoku spring tournament 2024: 0% -> 100%
2020-02-01 182 273.21

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