Bykov Dmitriy

From Saint Petersburg, Russia

EMA: 15990236

Player page

Common russian riichi rating (CRR)

Rating date April 4, 2026 (latest changes April 4, 2026).

164 place (314.12).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (578.95 * 1.50 * 0.14 + 810.81 * 3.40 * 1 + 0 + 0 + 0) / (1.50 * 0.14 + 3.40 * 1 + 1 + 1 + 1) = 435.5469547272219

p2 = (810.81 * 3.40 * 1 + 578.95 * 1.50 * 0.14) / max_coefficients = 192.69966555183947

score = 435.5469547272219 * 0.5 + 192.69966555183947 * 0.5 = 314.12331013953064

Rating changes

Show

all results
Date Place Points Reason
2026-04-04 165 -> 164 314.12
2026-03-30 167 -> 165 314.12
2026-03-25 164 -> 167 320.52 -> 314.12

Duplicate riichi mahjong tournament 2024: 29% -> 14%
2026-03-19 166 -> 164 320.52
2026-03-14 160 -> 166 320.52
2026-03-12 161 -> 160 320.52
2026-03-07 159 -> 161 320.52
2026-03-01 162 -> 159 320.52
2026-02-23 270 -> 162 111.94 -> 320.52

White Wolf Cup 2026: 0% -> 100%
2025-09-01 270 111.24 -> 111.94

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 811 2026-02-23 15/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
2 579 2024-05-25 9/20 14% 1.50 CRR Duplicate riichi mahjong tournament 2024 Moscow
3 299 2023-09-03 76/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
4 747 2021-11-28 20/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
5 635 2019-11-24 24/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
6 692 2018-12-23 13/40 0% 2.90 RR North Cup 2018 Saint Petersburg
7 873 2018-06-11 10/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
8 742 2018-03-04 9/32 0% 2.70 RR East Cup 2018 Saint Petersburg
9 506 2017-12-11 42/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
10 103 2017-10-01 36/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017 Saint Petersburg
11 282 2017-06-03 29/40 0% 1.80 RR Saint Petersburg championship. West cup 2017 Saint Petersburg
12 860 2017-03-18 7/44 0% 1.90 RR Saint Petersburg championship. South cup 2017 Saint Petersburg
13 183 2016-12-04 59/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016 Saint Petersburg
14 0 2016-10-16 32/32 0% 1.60 RR Tournament of 4 winds. West cup 2016 Saint Petersburg
15 770 2016-09-11 21/88 0% 3.45 EMA V Russian Riichi Championship 2016 Moscow
16 1000 2016-07-03 🥇 1/24 0% 1.40 RR Tournament of 4 winds. South cup 2016 Saint Petersburg
17 596 2016-03-13 41/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016 Moscow
18 282 2016-02-22 29/40 0% 2.60 EMA Ivanovo Region Riichi Championship 2016 Ivanovo
19 158 2015-11-15 17/20 0% 1.30 RR Tournament of Saint Petersburg riichi mahjong league Saint Petersburg
20 451 2015-10-18 29/52 0% 2.90 EMA Russian Open Riichi Championship 2015 Vologda
21 886 2015-08-22 5/36 0% 1.70 EMA Nizhny Novgorod Riichi Championship 2015 Nizhny Novgorod
22 684 2015-03-15 7/20 0% 2.10 RR Nizhny Novgorod riichi mahjong tournament Nizhny Novgorod