Dubrovin Sergey

From Saint Petersburg, Russia

EMA: 15990313

Player page

Common russian riichi rating (CRR)

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

214 place (61.76).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (173.91 * 2.10 * 1 + 347.83 * 1.40 * 0.29 + 0 + 0 + 0) / (2.10 * 1 + 1.40 * 0.29 + 1 + 1 + 1) = 91.69851526732825

p2 = (173.91 * 2.10 * 1 + 347.83 * 1.40 * 0.29) / max_coefficients = 31.819558359621453

score = 91.69851526732825 * 0.5 + 31.819558359621453 * 0.5 = 61.75903681347485

Rating changes

Show

all results
Date Place Points Reason
2024-12-22 213 -> 214 68.45 -> 61.76

Fire cup 2023: 43% -> 29%
2024-12-11 214 -> 213 68.45
2024-11-14 215 -> 214 68.45
2024-11-05 218 -> 215 68.45
2024-11-04 213 -> 218 68.45
2024-11-01 214 -> 213 68.45
2024-10-27 213 -> 214 68.45
2024-10-22 211 -> 213 74.83 -> 68.45

Fire cup 2023: 57% -> 43%
2024-10-13 197 -> 211 75.25 -> 74.83
2024-09-15 193 -> 197 75.25

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 29% 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