All available race results Thomas Ongena
| Date | Race | Rank |
| Tour of Belgium | ||
| 25/04 | Stage 1 | 24 |
| 26/04 | Stage 2 | 84 |
| 27/04 | Stage 3a | 22 |
| 27/04 | Stage 3b | 92 |
| 28/04 | Stage 4 | 17 |
| 29/04 | Stage 5 | 13 |
| General Classification | 51 | |
| 24/08 | Druivenkoers - Overijse | 37 |
| 07/09 | Memorial Rik Van Steenbergen | 16 |
| 21/09 | Omloop van het Houtland Lichtervelde | 11 |
| 11/10 | Nationale Sluitingsprijs Putte-Kapellen | 23 |
Rider information for 2005
| Rank | 1654 |
| Score | 6 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Profel Cycling Team |
| Date | Race | Rank |
| 06/04 | G.P. Pino Cerami | 31 |
| Tour of Belgium | ||
| 24/05 | Stage 1 | 30 |
| 25/05 | Stage 2 | 24 |
| 26/05 | Stage 3a | 75 |
| 26/05 | Stage 3b | 63 |
| 27/05 | Stage 4 | 64 |
| 28/05 | Stage 5 | 14 |
| General Classification | 43 | |
| 17/10 | Nationale Sluitingsprijs Putte-Kapellen | 20 |
Rider information for 2006
| Rank | 3339 |
| Score | 0 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Profel Ziegler Continental Team |
| Date | Race | Rank |
| 07/03 | Memorial Samyn - Fayt-le-Franc | 43 |
| Driedaagse van West-Vlaanderen | ||
| 09/03 | Stage 1 | 16 |
| 10/03 | Stage 2 | 110 |
| 28/03 | Dwars door België | 69 |
| 18/04 | Scheldeprijs - Schoten | 31 |
| 01/05 | Grote Prijs 1 Mei - Ereprijs Victor de Bruyne | 87 |
| Vuelta Ciclista Comunidad de Madrid | ||
| 18/07 | Stage 1 | 77 |
| 19/07 | Stage 2 | 90 |
| 20/07 | Stage 3 | 11 |
| 21/07 | Stage 4 | 96 |
| 22/07 | Stage 5 | 5 |
| General Classification | 87 | |
| 21/08 | G.P. Stad Zottegem | 31 |
| 21/09 | Kampioenschap van Vlaanderen - Koolskamp | 11 |
| 16/10 | Nationale Sluitingsprijs Putte-Kapellen | 20 |
Rider information for 2007
| Rank | 1797 |
| Score | 6 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Yawadoo - ABM - TV - Vlaanderen |
| Date | Race | Rank |
| 01/05 | Grote Prijs 1 Mei - Ereprijs Victor de Bruyne | 20 |
| Tour of Belgium | ||
| 28/05 | Stage 1 | 89 |
| 29/05 | Stage 2 | 17 |
| 30/05 | Stage 3 | 57 |
| 31/05 | Stage 4 | 97 |
| 01/06 | Stage 5 | 116 |
| General Classification | 84 | |
| 19/09 | Kampioenschap van Vlaanderen - Koolskamp | 61 |
| 24/09 | Omloop van het Houtland Lichtervelde | 62 |
Rider information for 2008
| Rank | 1914 |
| Score | 5 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Profel Prorace Continental Team |
| Date | Race | Rank |
| 01/05 | Grote Prijs 1 Mei - Ereprijs Victor de Bruyne | 4 |
| 18/08 | G.P. Stad Zottegem | 24 |
| 26/08 | Druivenkoers - Overijse | 27 |
| 06/09 | G.P. Jef Scherens - Leuven | 26 |
| 18/09 | Kampioenschap van Vlaanderen - Koolskamp | 33 |
| 13/10 | Nationale Sluitingsprijs Putte-Kapellen | 8 |
Rider information for 2009
| Rank | 1607 |
| Score | 8 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Profel Continental Team |
| Date | Race | Rank |
| 01/05 | Grote Prijs 1 Mei - Ereprijs Victor de Bruyne | 7 |
Rider information for 2010
| Rank | 1529 |
| Score | 11 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Elite without contract |
No results available in season 2011.
Rider information for 2011
| Rank | 2658 |
| Score | 3 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Elite without contract |
| Date | Race | Rank |
| 23/09 | Gooikse Pijl | 121 |
Rider information for 2012
| Rank | 4990 |
| Score | 0 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Elite without contract |
| Date | Race | Rank |
| 11/05 | Circuit de Wallonie Ville de Fleurus | 56 |
| Baloise Belgium Tour | ||
| 28/05 | Stage 1 | 142 |
| 29/05 | Stage 2 | 78 |
| 30/05 | Stage 3 | 133 |
| 31/05 | Stage 4 | 94 |
| 01/06 | Stage 5 | 103 |
| General Classification | 113 | |
| 19/08 | G.P. Stad Zottegem | 67 |
| 28/09 | Gooikse Pijl | 76 |
| 14/10 | Nationale Sluitingsprijs Putte-Kapellen | 55 |
Rider information for 2014
| Rank | 1427 |
| Score | 15 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Cibel |
| Date | Race | Rank |
| Baloise Belgium Tour | ||
| 27/05 | Prologue | 153 |
| 28/05 | Stage 1 | 120 |
| 29/05 | Stage 2 | 131 |
| 30/05 | Stage 3 | 135 |
| 05/09 | Brussels Cycling Classic | 154 |
Rider information for 2015
| Rank | 2305 |
| Score | 5 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Cibel |
No results available in season 2016.
Rider information for 2016
| Rank | 2740 |
| Score | 4 |
| Name | Thomas ONGENA |
| Country | Belgium |
| Team | Cibel - Cebon |