Erentsov Oleg

From Serpukhov, Russia

EMA: 15990062

Player page

Internal rating (RR)

Rating date June 10, 2023 (latest changes May 30, 2023).

75 place (340.19).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.71 + 3.10 * 0.57) = 12.52139

p1 = (936.51 * 3.45 * 0.14 + 252.25 * 4.05 * 0.14 + 612.61 * 4.05 * 1 + 0 + 0) / (3.45 * 0.14 + 4.05 * 0.14 + 4.05 * 1 + 1 + 1) = 433.7094113104223

p2 = (612.61 * 4.05 * 1 + 936.51 * 3.45 * 0.14 + 252.25 * 4.05 * 0.14) / max_coefficients = 246.6794820702813

score = 433.7094113104223 * 0.5 + 246.6794820702813 * 0.5 = 340.1944466903518

Rating changes

Show

all results
Date Place Points Reason
2023-05-30 69 -> 75 373.16 -> 340.19

VIII Russian Riichi Championship: 29% -> 14%

Saint Petersburg Open 2019: 29% -> 14%
2023-05-28 70 -> 69 370.84 -> 373.16
2023-05-20 71 -> 70 365.34 -> 370.84
2023-04-30 74 -> 71 365.34
2023-04-19 74 362.82 -> 365.34
2023-03-30 68 -> 74 392.09 -> 362.82

VIII Russian Riichi Championship: 43% -> 29%

Saint Petersburg Open 2019: 43% -> 29%
2023-03-28 69 -> 68 389.18 -> 392.09
2023-03-20 71 -> 69 383.66 -> 389.18
2023-03-06 74 -> 71 383.66
2023-02-19 75 -> 74 381.63 -> 383.66

Tournaments

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