Korobeynikov Vladimir

Russian Champion 2019

From Moscow, Russia

EMA: 15990148

Player page

Internal rating (RR)

Rating date Oct. 31, 2025 (latest changes Oct. 13, 2025).

32 place (641.74).

max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835

p1 = (764.71 * 3.05 * 0.43 + 971.96 * 4.60 * 0.57 + 843.14 * 3.05 * 0.57 + 775.28 * 3.75 * 0.86 + 0) / (3.05 * 0.43 + 4.60 * 0.57 + 3.05 * 0.57 + 3.75 * 0.86 + 1) = 759.7261175438321

p2 = (971.96 * 4.60 * 0.57 + 775.28 * 3.75 * 0.86 + 843.14 * 3.05 * 0.57 + 764.71 * 3.05 * 0.43) / max_coefficients = 523.7440012376449

score = 759.7261175438321 * 0.5 + 523.7440012376449 * 0.5 = 641.7350593907385

Rating changes

Show

all results
Date Place Points Reason
2025-10-13 30 -> 32 648.20 -> 641.74

Moscow Riichi 2024: 100% -> 86%
2025-10-09 27 -> 30 662.28 -> 648.20

Agari Summer Tournament 2024: 71% -> 57%
2025-10-04 28 -> 27 662.28
2025-09-14 29 -> 28 662.28
2025-09-12 23 -> 29 689.80 -> 662.28

X Russian Championship: 71% -> 57%
2025-09-10 21 -> 23 700.85 -> 689.80

Agari Spring Tournament 2024: 57% -> 43%
2025-09-01 22 -> 21 692.61 -> 700.85
2025-08-31 17 -> 22 692.61
2025-08-09 14 -> 17 705.88 -> 692.61

Agari Summer Tournament 2024: 86% -> 71%
2025-08-04 16 -> 14 702.78 -> 705.88

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 775 2024-10-13 21/90 86% 3.75 RR Moscow Riichi 2024 Moscow
2 843 2024-06-09 9/52 57% 3.05 RR Agari Summer Tournament 2024 Moscow
3 972 2024-05-12 4/108 57% 4.60 RR X Russian Championship Perm
4 765 2024-03-10 13/52 43% 3.05 RR Agari Spring Tournament 2024 Moscow
5 627 2022-11-06 29/76 0% 4.20 RR IX Russian Riichi Championship Perm
6 946 2022-06-12 7/112 0% 4.05 RR Moscow Riichi 2022 Moscow
7 935 2020-01-26 🥉 3/32 0% 2.70 RR The last chance: back to 2019 Moscow
8 1000 2019-12-15 🥇 1/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
9 825 2019-11-24 12/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
10 574 2018-08-19 21/48 0% 3.10 RR Moscow Riichi Open 2018 Moscow
11 831 2017-12-11 15/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
12 889 2017-10-22 8/64 0% 3.45 EMA Moscow Riichi Open 2017 Moscow
13 436 2017-03-11 23/40 0% 2.00 RR Moscow championship 2017 (JPML-A rules) Moscow
14 419 2015-03-08 26/44 0% 2.50 EMA Moscow Riichi Championship 2015 Moscow
15 960 2014-02-15 4/76 0% 2.50 RR Moscow Riichi 2014 Moscow
16 746 2013-12-08 19/72 0% 3.25 EMA Russian Riichi Championship 2013 Moscow
17 509 2013-05-19 28/56 0% 3.00 RR "Japanese House" riichi mahjong cup 2013 Moscow