Kolpakov Denis
From Perm, Russia
EMA: 15020053
Common russian riichi rating (CRR)
Rating date Aug. 9, 2025 (latest changes Aug. 9, 2025).
36 place (640.48).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (551.40 * 4 * 0.14 + 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 * 0.14 + 4.60 * 0.71 + 2.80 * 0.86 + 3.65 * 0.86 + 3.50 * 1 + 4.10 * 1) = 632.1933040635712
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 = 648.775
score = 632.1933040635712 * 0.5 + 648.775 * 0.5 = 640.4841520317856
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2025-06-11 | 67 -> 66 | 513.06 -> 505.15 |
Money can not buy tenpai: 14% -> 0% |
| 2025-06-09 | 68 -> 67 | 513.06 | |
| 2025-06-08 | 66 -> 68 | 513.06 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 985 |
|
🥈 | 2/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm |
| 2 | 343 |
|
47/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 3 | 810 |
|
16/80 | 86% | 3.65 | RR | Riichi over Volga | Samara | |
| 4 | 234 |
|
37/48 | 86% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 5 | 636 |
|
40/108 | 71% | 4.60 | RR | X Russian Championship | Perm | |
| 6 | 551 |
|
49/108 | 14% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 7 | 989 |
|
🥈 | 2/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm |
| 8 | 147 |
|
65/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 9 | 180 |
|
92/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 10 | 433 |
|
39/68 | 0% | 3.50 | RR | Tenpai can't buy happiness | Perm | |
| 11 | 640 |
|
28/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg | |
| 12 | 568 |
|
49/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
| 13 | 333 |
|
43/64 | 0% | 3.85 | EMA | Aki Shanten 2019 | Perm | |
| 14 | 988 |
|
🥈 | 2/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm |
| 15 | 947 |
|
🥈 | 2/20 | 0% | 2.10 | RR | Fuyu Shanten 2019 | Perm |
| 16 | 560 |
|
41/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" | Perm | |
| 17 | 889 |
|
4/28 | 0% | 1.70 | RR | Natsu Shanten 2018 | Perm | |
| 18 | 676 |
|
24/72 | 0% | 3.85 | EMA | Haru Shanten 2018 | Perm | |
| 19 | 185 |
|
23/28 | 0% | 1.70 | RR | Fuyu Shanten | Perm | |
| 20 | 324 |
|
49/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten | Perm | |
| 21 | 548 |
|
15/32 | 0% | 1.60 | RR | "Summer shanten" tournament, Perm 2017 | Perm | |
| 22 | 548 |
|
15/32 | 0% | 2.20 | RR | Second riichi mahjong tournament, Chelyabinsk 2017 | Chelyabinsk | |
| 23 | 444 |
|
16/28 | 0% | 1.50 | RR | "Spring shanten" tournament, Perm 2017 | Perm | |
| 24 | 579 |
|
9/20 | 0% | 1.70 | RR | Plitochka | Tyumen | |
| 25 | 815 |
|
6/28 | 0% | 1.90 | RR | 2 winter riichi mahjong tournament 2015 | Yekaterinburg | |
| 26 | 263 |
|
15/20 | 0% | 1.30 | RR | Autumn riichi mahjong tournament 2014 | Yekaterinburg | |
| 27 | 455 |
|
31/56 | 0% | 3.00 | RR | "Japanese House" riichi mahjong cup 2013 | Moscow |