Name: Frederik Nielsen
Country: Denmark
Birthdate: 27.08.83, 40 years
Height: 190 cm
Weight: 76 kg
Profi since: 2001
Right-handed
ATP ranking: 616
TOP ranking's position: 190 (15.08.11, 274 points)
Points: 3
Prize money: 1368011 $
Matches total: 929
Win: 564
%: 60.71 %
Country: Denmark
Birthdate: 27.08.83, 40 years
Height: 190 cm
Weight: 76 kg
Profi since: 2001
Right-handed
ATP ranking: 616
TOP ranking's position: 190 (15.08.11, 274 points)
Points: 3
Prize money: 1368011 $
Matches total: 929
Win: 564
%: 60.71 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2021 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2020 | 3/1 | 0/0 | 2/0 | 1/1 | 0/0 | 0/0 | 0/0 |
| 2019 | 1/2 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2018 | 29/19 | 14/11 | 0/0 | 12/7 | 0/0 | 3/1 | 0/0 |
| 2017 | 40/24 | 26/16 | 0/0 | 12/8 | 2/0 | 0/0 | 0/0 |
| 2016 | 47/21 | 29/14 | 0/0 | 14/4 | 3/2 | 1/1 | 0/0 |
| 2015 | 31/29 | 17/13 | 0/0 | 7/10 | 0/1 | 7/5 | 0/0 |
| 2014 | 45/19 | 23/9 | 0/0 | 18/5 | 4/4 | 0/1 | 0/0 |
| 2013 | 22/20 | 10/7 | 0/4 | 9/6 | 0/0 | 3/3 | 0/0 |
| 2012 | 20/20 | 13/9 | 0/1 | 1/6 | 1/1 | 5/3 | 0/0 |
| 2011 | 37/28 | 9/10 | 12/7 | 9/8 | 2/1 | 5/2 | 0/0 |
| 2010 | 46/26 | 14/10 | 18/10 | 8/3 | 6/3 | 0/0 | 0/0 |
| 2009 | 44/27 | 23/12 | 1/1 | 16/10 | 3/2 | 1/2 | 0/0 |
| 2008 | 37/26 | 12/6 | 2/5 | 12/8 | 8/4 | 3/3 | 0/0 |
| 2007 | 41/24 | 5/4 | 7/6 | 23/8 | 0/3 | 6/3 | 0/0 |
| 2006 | 48/26 | 10/5 | 7/2 | 18/10 | 6/5 | 3/3 | 4/1 |
| 2005 | 42/23 | 14/6 | 6/3 | 13/5 | 0/1 | 9/7 | 0/1 |
| 2004 | 29/24 | 2/3 | 7/7 | 13/8 | 7/6 | 0/0 | 0/0 |
| 2003 | 1/3 | 0/0 | 1/1 | 0/1 | 0/1 | 0/0 | 0/0 |
| 2002 | 1/1 | 0/0 | 0/0 | 1/1 | 0/0 | 0/0 | 0/0 |
| 2001 | 0/1 | 0/0 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 |
| TOTAL | 564/365 | 222/138 | 63/47 | 187/110 | 42/34 | 46/34 | 4/2 |
| perc. % | 60.71 % | 61.67 % | 57.27 % | 62.96 % | 55.26 % | 57.5 % | 66.67 % |
Frederik Nielsen / scheduled / last
| no matches found |
Frederik Nielsen form / year 2013 / surface: Hard
Frederik Nielsen / year 2013 / surface: Hard
| 19.08.13 | 1st round | Roberto Bautista Agut | Frederik Nielsen | 6-1, 6-3 |  | match details |  Winston-Salem | Hard |
| 18.08.13 | qual. | Frederik Nielsen | Denis Kudla | 4-6, 6-2, 6-0 |  | match details | ||
| 17.08.13 | q 2 | Frederik Nielsen | James Duckworth | 7-5, 6-2 | | match details | ||
| 17.08.13 | q 1 | Frederik Nielsen | Keith-Patrick Crowley | 6-3, 6-4 | | match details | ||
| 03.08.13 | q 1 | Alexander Sarkissian | Frederik Nielsen | 6-1, 6-4 | | match details | Aptos Challenger | Hard |
| 27.07.13 | q 2 | Erik Chvojka | Frederik Nielsen | 6-4, 7-5 | | match details |  Vancouver Challenger | Hard |
| 27.07.13 | q 1 | Frederik Nielsen | George Jecminek | 3-6, 6-3, 6-4 | | match details | ||
| 20.07.13 | q 1 | Bjorn Fratangelo | Frederik Nielsen | 6-4, 6-4 | | match details | Lexington Challenger | Hard |
| 18.07.13 | 2nd round | Takanyi Garanganga | Frederik Nielsen | 6-2, 6-4 | | match details | Binghamton Challenger | Hard |
| 16.07.13 | 1st round | Frederik Nielsen | Farrukh Dustov | 3-6, 6-4, 3-0, Farrukh Dustov - retired | | match details | ||
| 15.07.13 | qual. | Frederik Nielsen | Bjorn Fratangelo | 6-1, 6-3 | | match details | ||
| 14.07.13 | q 2 | Frederik Nielsen | Michael Redlicki | 6-4, 6-2 | | match details | ||
| 13.07.13 | q 1 | Frederik Nielsen | Janis Podzus | 6-3, 6-1 | | match details | ||
| 07.01.13 | qual. | Jesse Levine | Frederik Nielsen | 6-4, 6-1 | | match details |  Auckland | Hard |
| 06.01.13 | q 2 | Frederik Nielsen | Daniel Gimeno-Traver | 5-7, 6-2, 7-61 | | match details | ||
| 05.01.13 | q 1 | Frederik Nielsen | Frantisek Cermak | 7-5, 6-0 | | match details | ||
| 31.12.12 | 1st round | Jonathan Dasnieres de Veigy | Frederik Nielsen | 0-6, 6-4, 6-3 | | match details |  Noumea Challenger | Hard |