Tkachenko Nikita

From Moscow, Russia

EMA: 15990049

Player page

Internal rating (RR)

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

59 place (528.56).

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

p1 = (988.76 * 3.75 * 0.86 + 612.90 * 3.10 * 1 + 477.61 * 4.10 * 1 + 0 + 0) / (3.75 * 0.86 + 3.10 * 1 + 4.10 * 1 + 1 + 1) = 566.7914573117316

p2 = (988.76 * 3.75 * 0.86 + 477.61 * 4.10 * 1 + 612.90 * 3.10 * 1) / max_coefficients = 490.33455785380113

score = 566.7914573117316 * 0.5 + 490.33455785380113 * 0.5 = 528.5630075827664

Rating changes

Show

all results
Date Place Points Reason
2025-10-13 56 -> 59 547.74 -> 528.56

Moscow Riichi 2024: 100% -> 86%
2025-09-12 57 -> 56 547.74
2025-09-03 58 -> 57 547.74
2025-09-01 58 541.01 -> 547.74
2025-08-31 53 -> 58 541.01
2025-08-09 54 -> 53 541.01
2025-08-04 55 -> 54 538.58 -> 541.01
2025-08-03 54 -> 55 538.58
2025-07-14 56 -> 54 538.58
2025-07-12 58 -> 56 533.97 -> 538.58

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 478 2025-06-15 36/68 100% 4.10 RR 13 bloody tiles Perm
2 613 2025-01-07 13/32 100% 3.10 RR Moscow Open Riichi Marathon Moscow
3 989 2024-10-13 🥈 2/90 86% 3.75 RR Moscow Riichi 2024 Moscow
4 523 2022-06-12 54/112 0% 4.05 RR Moscow Riichi 2022 Moscow
5 613 2019-12-15 44/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
6 171 2019-07-21 30/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
7 85 2019-01-13 44/48 0% 3.10 RR Agari team tournament 2019 Moscow
8 619 2018-12-16 25/64 0% 3.45 EMA White Dragon Tournament Moscow
9 830 2018-08-19 9/48 0% 3.10 RR Moscow Riichi Open 2018 Moscow
10 852 2018-07-15 5/28 0% 3.00 RR Moscow Open Riichi Marathon Moscow
11 662 2018-06-11 25/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
12 988 2017-12-11 🥈 2/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
13 254 2017-10-22 48/64 0% 3.45 EMA Moscow Riichi Open 2017 Moscow
14 67 2017-10-07 15/16 0% 1.40 RR Red Dragon tournament 2017 Moscow
15 971 2017-07-09 🥈 2/36 0% 3.20 RR Moscow Open Riichi Marathon 2017 Moscow
16 641 2017-03-11 15/40 0% 2.00 RR Moscow championship 2017 (JPML-A rules) Moscow
17 803 2016-12-04 15/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016 Saint Petersburg
18 793 2016-09-11 19/88 0% 3.45 EMA V Russian Riichi Championship 2016 Moscow
19 333 2016-04-17 11/16 0% 1.20 RR Riichi mahjong league tournament 2016 (JPML-A rules) Moscow
20 990 2016-03-13 🥈 2/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016 Moscow
21 200 2016-02-06 13/16 0% 1.40 RR February tournament glhf; 2016 Moscow
22 196 2015-10-18 42/52 0% 2.90 EMA Russian Open Riichi Championship 2015 Vologda
23 791 2015-03-08 10/44 0% 2.50 EMA Moscow Riichi Championship 2015 Moscow
24 952 2014-12-07 4/64 0% 3.15 EMA Russian Open Riichi Championship 2014 Moscow
25 1000 2014-09-21 🥇 1/64 0% 3.15 RR "Japanese House" riichi mahjong cup 2014 Moscow
26 707 2014-02-15 23/76 0% 2.50 RR Moscow Riichi 2014 Moscow
27 775 2013-12-08 17/72 0% 3.25 EMA Russian Riichi Championship 2013 Moscow
28 618 2013-05-19 22/56 0% 3.00 RR "Japanese House" riichi mahjong cup 2013 Moscow
29 800 2011-04-23 8/36 0% 0.90 EMA Moscow Riichi 2011 Moscow