Dubrovin Sergey

From Saint Petersburg, Russia

EMA: 15990313

Player page

Common russian riichi rating (CRR)

Rating date Sept. 3, 2024 (latest changes Sept. 3, 2024).

194 place (75.25).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284

p1 = (347.83 * 1.40 * 0.57 + 173.91 * 2.10 * 1 + 0 + 0 + 0) / (1.40 * 0.57 + 2.10 * 1 + 1 + 1 + 1) = 109.06345127763578

p2 = (173.91 * 2.10 * 1 + 347.83 * 1.40 * 0.57) / max_coefficients = 41.43826794776024

score = 109.06345127763578 * 0.5 + 41.43826794776024 * 0.5 = 75.25085961269801

Rating changes

Show

all results
Date Place Points Reason
2024-09-03 194 74.52 -> 75.25
2024-09-01 184 -> 194 75.56 -> 74.52
2024-08-26 190 -> 184 75.56
2024-08-22 190 81.75 -> 75.56

Fire cup 2023: 71% -> 57%
2024-08-20 192 -> 190 81.75
2024-08-11 192 81.50 -> 81.75
2024-08-04 189 -> 192 82.43 -> 81.50
2024-07-14 184 -> 189 82.43
2024-07-09 185 -> 184 82.43
2024-07-06 186 -> 185 82.43

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 57% 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