Tkachenko Nikita

From Moscow, Russia

EMA: 15990049

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Internal rating (RR)

Rating date May 24, 2026 (latest changes May 17, 2026).

38 place (624.60).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85

p1 = (988.76 * 3.75 * 0.43 + 612.90 * 3.10 * 0.57 + 477.61 * 4.10 * 1 + 526.32 * 3.90 * 1 + 666.67 * 3 * 1 + 900 * 3.10 * 1) / (3.75 * 0.43 + 3.10 * 0.57 + 4.10 * 1 + 3.90 * 1 + 3 * 1 + 3.10 * 1) = 656.5569648352641

p2 = (900 * 3.10 * 1 + 526.32 * 3.90 * 1 + 666.67 * 3 * 1 + 477.61 * 4.10 * 1) / max_coefficients = 592.6491582491583

score = 656.5569648352641 * 0.5 + 592.6491582491583 * 0.5 = 624.6030615422112

Rating changes

Show

all results
Date Place Points Reason
2026-05-17 37 -> 38 624.60
2026-05-07 38 -> 37 624.06 -> 624.60

Moscow Open Riichi Marathon: 71% -> 57%
2026-05-03 36 -> 38 622.08 -> 624.06
2026-04-13 33 -> 36 632.28 -> 622.08

Moscow Riichi 2024: 57% -> 43%
2026-04-11 31 -> 33 632.28
2026-04-05 43 -> 31 580.76 -> 632.28

Moscow Riichi 2026: 0% -> 100%
2026-03-30 44 -> 43 580.76
2026-03-07 45 -> 44 580.69 -> 580.76

Moscow Open Riichi Marathon: 86% -> 71%
2026-03-01 48 -> 45 580.69
2026-02-23 40 -> 48 580.69

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 900 2026-04-05 6/51 100% 3.10 RR Moscow Riichi 2026 Moscow
2 667 2026-01-07 11/31 100% 3.00 RR Moscow Open Riichi Marathon 2026 Moscow
3 526 2025-11-04 28/58 100% 3.90 RR XI Russian Championship Moscow
4 478 2025-06-15 36/68 100% 4.10 RR 13 bloody tiles Perm
5 613 2025-01-07 13/32 57% 3.10 RR Moscow Open Riichi Marathon Moscow
6 989 2024-10-13 🥈 2/90 43% 3.75 RR Moscow Riichi 2024 Moscow
7 523 2022-06-12 54/112 0% 4.05 RR Moscow Riichi 2022 Moscow
8 613 2019-12-15 44/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
9 171 2019-07-21 30/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
10 85 2019-01-13 44/48 0% 3.10 RR Agari team tournament 2019 Moscow
11 619 2018-12-16 25/64 0% 3.45 EMA White Dragon Tournament Moscow
12 830 2018-08-19 9/48 0% 3.10 RR Moscow Riichi Open 2018 Moscow
13 852 2018-07-15 5/28 0% 3.00 RR Moscow Open Riichi Marathon Moscow
14 662 2018-06-11 25/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
15 988 2017-12-11 🥈 2/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
16 254 2017-10-22 48/64 0% 3.45 EMA Moscow Riichi Open 2017 Moscow
17 67 2017-10-07 15/16 0% 1.40 RR Red Dragon tournament 2017 Moscow
18 971 2017-07-09 🥈 2/36 0% 3.20 RR Moscow Open Riichi Marathon 2017 Moscow
19 641 2017-03-11 15/40 0% 2.00 RR Moscow championship 2017 (JPML-A rules) Moscow
20 803 2016-12-04 15/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016 Saint Petersburg
21 793 2016-09-11 19/88 0% 3.45 EMA V Russian Riichi Championship 2016 Moscow
22 333 2016-04-17 11/16 0% 1.20 RR Riichi mahjong league tournament 2016 (JPML-A rules) Moscow
23 990 2016-03-13 🥈 2/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016 Moscow
24 200 2016-02-06 13/16 0% 1.40 RR February tournament glhf; 2016 Moscow
25 196 2015-10-18 42/52 0% 2.90 EMA Russian Open Riichi Championship 2015 Vologda
26 791 2015-03-08 10/44 0% 2.50 EMA Moscow Riichi Championship 2015 Moscow
27 952 2014-12-07 4/64 0% 3.15 EMA Russian Open Riichi Championship 2014 Moscow
28 1000 2014-09-21 🥇 1/64 0% 3.15 RR "Japanese House" riichi mahjong cup 2014 Moscow
29 707 2014-02-15 23/76 0% 2.50 RR Moscow Riichi 2014 Moscow
30 775 2013-12-08 17/72 0% 3.25 EMA Russian Riichi Championship 2013 Moscow
31 618 2013-05-19 22/56 0% 3.00 RR "Japanese House" riichi mahjong cup 2013 Moscow
32 800 2011-04-23 8/36 0% 0.90 EMA Moscow Riichi 2011 Moscow