Bogachkov Dmitry

From Saint Petersburg, Russia

EMA: 15990117

Player page

Internal rating (RR)

Rating date Sept. 9, 2026 (latest changes Sept. 7, 2026).

168 place (278.49).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (108.11 * 3.40 * 1 + 873.24 * 3.40 * 1 + 0 + 0 + 0) / (3.40 * 1 + 3.40 * 1 + 1 + 1 + 1) = 340.4673469387755

p2 = (873.24 * 3.40 * 1 + 108.11 * 3.40 * 1) / max_coefficients = 216.52044127190138

score = 340.4673469387755 * 0.5 + 216.52044127190138 * 0.5 = 278.4938941053384

Rating changes

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all results
Date Place Points Reason
2026-09-06 168 278.49

Sunset Wolf Cup 2026: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 873 2026-09-06 10/72 100% 3.40 RR Sunset Wolf Cup 2026 Saint Petersburg
2 108 2026-02-23 67/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
3 289 2017-12-11 60/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
4 698 2017-10-22 20/64 0% 3.45 EMA Moscow Riichi Open 2017 Moscow
5 590 2017-10-01 17/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017 Saint Petersburg
6 549 2016-12-04 33/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016 Saint Petersburg
7 770 2016-09-11 21/88 0% 3.45 EMA V Russian Riichi Championship 2016 Moscow
8 535 2015-03-08 21/44 0% 2.50 EMA Moscow Riichi Championship 2015 Moscow
9 444 2014-10-18 16/28 0% 1.50 EMA Vologda Riichi Championship 2014 Vologda
10 365 2014-09-21 41/64 0% 3.15 RR "Japanese House" riichi mahjong cup 2014 Moscow
11 400 2014-03-23 10/16 0% 1.20 EMA Riichi Baden Open 2014 Baden
12 457 2014-03-16 20/36 0% 1.70 EMA Tri Nitro Tournament: Third Detonation ! Puteaux
13 240 2014-02-15 58/76 0% 2.50 RR Moscow Riichi 2014 Moscow
14 437 2013-12-08 41/72 0% 3.25 EMA Russian Riichi Championship 2013 Moscow
15 161 2013-11-17 27/32 0% 1.60 EMA Vienna Riichi Tournament Vienna
16 73 2013-05-19 52/56 0% 3.00 RR "Japanese House" riichi mahjong cup 2013 Moscow
17 815 2013-02-17 6/28 0% 2.30 EMA Saint Petersburg Riichi tournament Saint Petersburg