Kolpakov Denis

From Perm, Russia

EMA: 15020053

Player page

Common russian riichi rating (CRR)

Rating date Sept. 5, 2025 (latest changes Sept. 5, 2025).

36 place (650.66).

max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8

p1 = (635.51 * 4.60 * 0.71 + 234.04 * 2.80 * 0.86 + 810.13 * 3.65 * 0.86 + 342.86 * 3.50 * 1 + 985.07 * 4.10 * 1) / (4.60 * 0.71 + 2.80 * 0.86 + 3.65 * 0.86 + 3.50 * 1 + 4.10 * 1) = 635.0068462584703

p2 = (985.07 * 4.10 * 1 + 810.13 * 3.65 * 0.86 + 635.51 * 4.60 * 0.71 + 342.86 * 3.50 * 1) / max_coefficients = 666.3094594594594

score = 635.0068462584703 * 0.5 + 666.3094594594594 * 0.5 = 650.6581528589649

Rating changes

Show

all results
Date Place Points Reason
2025-09-03 37 -> 36 649.25 -> 650.66

SPB Riichi Open 2023: 14% -> 0%
2025-09-01 39 -> 37 640.48 -> 649.25
2025-08-31 36 -> 39 640.48
2025-08-04 35 -> 36 653.73 -> 640.48

Riichi over Volga: 100% -> 86%
2025-08-03 30 -> 35 653.73
2025-07-14 31 -> 30 649.22 -> 653.73

Guardian of the Winds: 100% -> 86%
2025-07-12 30 -> 31 656.42 -> 649.22

X Russian Championship: 86% -> 71%
2025-07-03 30 655.27 -> 656.42

SPB Riichi Open 2023: 29% -> 14%
2025-06-15 67 -> 30 505.15 -> 655.27

13 bloody tiles: 0% -> 100%
2025-06-14 66 -> 67 505.15

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 985 2025-06-15 🥈 2/68 100% 4.10 RR 13 bloody tiles Perm
2 343 2025-05-03 47/71 100% 3.50 RR Riichi over The Volga 2025 Samara
3 810 2024-08-04 16/80 86% 3.65 RR Riichi over Volga Samara
4 234 2024-07-14 37/48 86% 2.80 RR Guardian of the Winds Yekaterinburg
5 636 2024-05-12 40/108 71% 4.60 RR X Russian Championship Perm
6 551 2023-09-03 49/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
7 989 2023-06-11 🥈 2/88 0% 3.75 RR Money can not buy tenpai Perm
8 147 2022-11-06 65/76 0% 4.20 RR IX Russian Riichi Championship Perm
9 180 2022-06-12 92/112 0% 4.05 RR Moscow Riichi 2022 Moscow
10 433 2022-03-20 39/68 0% 3.50 RR Tenpai can't buy happiness Perm
11 640 2021-11-28 28/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
12 568 2019-12-15 49/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
13 333 2019-11-04 43/64 0% 3.85 EMA Aki Shanten 2019 Perm
14 988 2019-05-04 🥈 2/84 0% 4.20 EMA Haru Shanten 2019 Perm
15 947 2019-02-10 🥈 2/20 0% 2.10 RR Fuyu Shanten 2019 Perm
16 560 2018-11-18 41/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
17 889 2018-08-11 4/28 0% 1.70 RR Natsu Shanten 2018 Perm
18 676 2018-05-01 24/72 0% 3.85 EMA Haru Shanten 2018 Perm
19 185 2018-02-17 23/28 0% 1.70 RR Fuyu Shanten Perm
20 324 2017-11-12 49/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
21 548 2017-06-03 15/32 0% 1.60 RR "Summer shanten" tournament, Perm 2017 Perm
22 548 2017-04-16 15/32 0% 2.20 RR Second riichi mahjong tournament, Chelyabinsk 2017 Chelyabinsk
23 444 2017-03-25 16/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017 Perm
24 579 2015-09-27 9/20 0% 1.70 RR Plitochka Tyumen
25 815 2015-02-22 6/28 0% 1.90 RR 2 winter riichi mahjong tournament 2015 Yekaterinburg
26 263 2014-10-25 15/20 0% 1.30 RR Autumn riichi mahjong tournament 2014 Yekaterinburg
27 455 2013-05-19 31/56 0% 3.00 RR "Japanese House" riichi mahjong cup 2013 Moscow