| Temporada | Equipo | Competición | PJ | G | A | Nota | ||
|---|---|---|---|---|---|---|---|---|
| 2022/2023 | Faroe Islands | UEFA Nations League | 4 | 0 | 0 | 0 | 0 | 6.3 |
| 2022 | Faroe Islands | Friendly International | 2 | 0 | 0 | 0 | 0 | – |
| 2022 | Faroe Islands | World Cup - Qualification | 5 | 0 | 0 | 0 | 0 | – |
| 2020/2021 | Faroe Islands | UEFA Nations League | 1 | 0 | 0 | 0 | 0 | 6.9 |
| 2020 | Faroe Islands | Friendly International | 1 | 0 | 0 | 0 | 0 | – |
| 2020 | Faroe Islands | Euro - Qualification | 8 | 0 | 0 | 0 | 0 | 6.4 |
| 2018/2019 | Faroe Islands | UEFA Nations League | 6 | 0 | 0 | 1 | 0 | – |
| 2018 | Faroe Islands | World Cup - Qualification | 10 | 0 | 0 | 0 | 0 | – |
| 2016 | Faroe Islands | Euro - Qualification | 10 | 0 | 0 | 0 | 0 | – |
| 2014 | Faroe Islands | World Cup - Qualification | 5 | 0 | 0 | 0 | 0 | – |
| 2013 | Faroe Islands | Friendly International | 1 | 0 | 0 | 0 | 0 | – |
| 2012 | Faroe Islands | Euro - Qualification | 2 | 0 | 0 | 1 | 0 | – |
| Total | 55 | 0 | 0 | 2 | 0 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| - | Hafnarfjordur | HB Torshavn | ||
| 01 ene 2016 | Stjarnan | Hafnarfjordur | Free agent | |
| 04 abr 2015 | Motherwell | Stjarnan | ||
| 07 feb 2013 | Silkeborg | Motherwell | Free agent | |
| 04 abr 2013 | Manchester City | Silkeborg | ||
| 01 ene 2011 | Tranmere | Manchester City | Return from loan | |
| - | Manchester City | Tranmere | Loan | |
| 05 ene 2009 | Wrexham | Manchester City | Return from loan | |
| 03 ene 2009 | Manchester City | Wrexham | Loan | |
| 01 ene 2009 | Blackburn | Manchester City | Free agent | |
| - | Motherwell | Blackburn | Return from loan | |
| 08 ago 2008 | Blackburn | Motherwell | Loan | |
| 07 feb 2007 | BK Frem | Blackburn | ||
| 07 ene 2004 | HB Torshavn | BK Frem | Free agent |
G. Nielsen career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.