Erentsov Oleg

From Serpukhov, Russia

EMA: 15990062

Player page

Internal rating (RR)

Rating date Oct. 9, 2025 (latest changes Oct. 9, 2025).

168 place (210.27).

max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8

p1 = (463.16 * 3.85 * 0.86 + 253.73 * 4.10 * 1 + 0 + 0 + 0) / (3.85 * 0.86 + 4.10 * 1 + 1 + 1 + 1) = 246.98853395270214

p2 = (463.16 * 3.85 * 0.86 + 253.73 * 4.10 * 1) / max_coefficients = 173.55675675675673

score = 246.98853395270214 * 0.5 + 173.55675675675673 * 0.5 = 210.27264535472943

Rating changes

Show

all results
Date Place Points Reason
2025-09-30 170 -> 168 210.27
2025-09-10 171 -> 170 210.27
2025-09-03 176 -> 171 210.27
2025-09-01 175 -> 176 221.80 -> 210.27

SPB Riichi Open 2024: 100% -> 86%
2025-08-31 172 -> 175 221.80
2025-08-09 173 -> 172 221.80
2025-08-04 173 220.89 -> 221.80
2025-08-03 167 -> 173 220.89
2025-07-30 168 -> 167 220.89
2025-07-13 165 -> 168 220.89

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 254 2025-06-15 51/68 100% 4.10 RR 13 bloody tiles Perm
2 463 2024-09-01 52/96 86% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
3 613 2022-06-12 44/112 0% 4.05 RR Moscow Riichi 2022 Moscow
4 252 2019-12-15 84/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
5 937 2019-11-24 5/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
6 651 2018-12-16 23/64 0% 3.45 EMA White Dragon Tournament Moscow
7 651 2017-10-22 23/64 0% 3.45 EMA Moscow Riichi Open 2017 Moscow
8 402 2016-09-11 53/88 0% 3.45 EMA V Russian Riichi Championship 2016 Moscow
9 636 2016-03-13 37/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016 Moscow
10 209 2015-03-08 35/44 0% 2.50 EMA Moscow Riichi Championship 2015 Moscow
11 810 2014-12-07 13/64 0% 3.15 EMA Russian Open Riichi Championship 2014 Moscow
12 127 2014-09-21 56/64 0% 3.15 RR "Japanese House" riichi mahjong cup 2014 Moscow
13 627 2014-02-15 29/76 0% 2.50 RR Moscow Riichi 2014 Moscow
14 873 2013-12-08 10/72 0% 3.25 EMA Russian Riichi Championship 2013 Moscow
15 200 2013-05-19 45/56 0% 3.00 RR "Japanese House" riichi mahjong cup 2013 Moscow
16 947 2012-08-12 🥈 2/20 0% 1.30 EMA Russian Open Riichi Championship 2012 Moscow
17 286 2011-04-23 26/36 0% 0.90 EMA Moscow Riichi 2011 Moscow