Korobeynikov Vladimir

Russian Champion 2019

From Moscow, Russia

EMA: 15990148

Player page

Internal rating (RR)

Rating date April 19, 2021 (latest changes April 16, 2021).

11 place (669.96).

max_coefficients = (2.90 * 0.86 + 4.05 * 0.57 + 3.85 * 0.57 + 3.45 * 0.57) = 8.970979999999999

p1 = (825.40 * 3.45 * 0.57 + 1000 * 4.05 * 0.57 + 935.48 * 2.70 * 0.71 + 0 + 0) / (3.45 * 0.57 + 4.05 * 0.57 + 2.70 * 0.71 + 1 + 1) = 699.4647015927471

p2 = (1000 * 4.05 * 0.57 + 935.48 * 2.70 * 0.71 + 825.40 * 3.45 * 0.57) / max_coefficients = 640.4517678113207

score = 699.4647015927471 * 0.5 + 640.4517678113207 * 0.5 = 669.9582347020339

Rating changes

Show

Date Place Points Reason
2021-04-15 8 -> 11 690.74 -> 669.96

VIII Russian Riichi Championship: 71% -> 57%

2021-04-02 7 -> 8 690.74
2021-03-26 6 -> 7 702.04 -> 690.74

The last chance: back to 2019: 86% -> 71%

2021-03-24 6 715.75 -> 702.04

Saint Petersburg Open 2019: 71% -> 57%

2021-03-08 6 702.06 -> 715.75
2021-03-04 8 -> 6 688.78 -> 702.06
2021-02-20 10 -> 8 688.78
2021-02-15 5 -> 10 705.18 -> 688.78

VIII Russian Riichi Championship: 86% -> 71%

2021-01-26 5 717.25 -> 705.18

The last chance: back to 2019: 100% -> 86%

2021-01-24 6 -> 5 728.41 -> 717.25

Saint Petersburg Open 2019: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 935 2020-01-26 3/32 71% 2.70 RR The last chance: back to 2019
2 1000 2019-12-15 1/112 57% 4.05 EMA VIII Russian Riichi Championship
3 825 2019-11-24 12/64 57% 3.45 EMA Saint Petersburg Open 2019
4 574 2018-08-19 21/48 0% 3.10 RR Moscow Riichi Open 2018
5 831 2017-12-11 15/84 0% 3.40 EMA VI Russian Riichi Championship 2017
6 889 2017-10-22 8/64 0% 3.45 EMA Moscow Riichi Open 2017
7 436 2017-03-11 23/40 0% 2.00 RR Moscow championship 2017 (JPML-A rules)
8 419 2015-03-08 26/44 0% 2.50 EMA Moscow Riichi Championship 2015
9 960 2014-02-15 4/76 0% 2.50 RR Moscow Riichi 2014
10 746 2013-12-08 19/72 0% 3.25 RR Russian Riichi Championship 2013
11 509 2013-05-19 28/56 0% 3.00 RR "Japanese House" riichi mahjong cup 2013