Info
| Last name | Castelijns |
| First name | Twan |
| Nationality |  Netherlands |
| Date of birth | 23-01-1989 |
| Age | 36 |
Monuments
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
| 06-10 | 112 |  Tour of Almaty (1.2) | |||||
| 15-09 | 32 | Rabo Baronie Breda Classic (1.2) | |||||
| 08-09 | 107 | Kernen Omloop Echt-Susteren (1.2) | |||||
| 01-09 | 104 | Rabo Ronde van Midden-Nederland (1.2) | |||||
| 19-05 | 70 | Simac Omloop der Kempen (1.2) | |||||
| Royal Smilde Olympia's Tour (2.2) | |||||||
| 23 |  Standings | ||||||
| 18-05 | 41 | Stage 6Reuver - Reuver (79.0km) | |||||
| 18-05 | 38 | Stage 5Reuver - Reuver (13.0km) | |||||
| 17-05 | 23 | Stage 4Bocholtz - Voerendaal (192.0km) | |||||
| 16-05 | 21 | Stage 3Ulft - Gendringen (157.0km) | |||||
| 15-05 | 27 | Stage 2Rhenen - Alkmaar (173.0km) | |||||
| 14-05 | 71 | Stage 1Noordwijk - Hoofddorp (180.0km) | |||||
| 13-05 | 28 | PrologueKatwijk - Katwijk (3.0km) | |||||
| 04-05 | 54 | Ronde van Overijssel (1.2) | |||||
| 28-04 | 14 | Zuid Oost Drenthe Classic II (1.2) | |||||
| 27-04 | 31 | Zuid Oost Drenthe Classic (2.2) | |||||
| 21-04 | 41 | Int. Ronde van Noord-Holland (1.2) | |||||
| 20-04 | 24 | Arno Wallaard Memorial (1.2) | |||||
| 10-03 | 26 | Rabobank Dorpenomloop Rucphen (1.2) | |||||
| 02-03 | 31 | Ster van Zwolle (1.2) | |||||
| 23-02 | 52 |  Beverbeek Classic (1.2) | |||||
Teams
| Year | Team |
|---|---|
| 2017 | Team LottoNL - Jumbo |
| 2016 | TEAMLottoNL - Jumbo |
| 2015 | TEAMLottoNL - Jumbo |
| 2015 | Babydump Cycling Team |
| 2014 | Koga Cycling Team |
Victories
| This year | 0 |
| Total | 0 |