All available race results William Heffernan
| Date | Race | Rank |
| New Zealand Cycle Classic | ||
| 11/01 | Stage 1 | 11 |
| 12/01 | Stage 2 | 33 |
| 13/01 | Stage 3 | 20 |
| 14/01 | Stage 4 | 27 |
| 15/01 | Stage 5 | 42 |
| General Classification | 21 | |
| 21/01 | Gravel and Tar Classic | 4 |
| Tour de Taiwan | ||
| 12/03 | Stage 1 | 77 |
| 13/03 | Stage 2 | 59 |
| 01/04 | Oceania Continental Championships Road Race | 9 |
Rider information for 2023
| Rank | 3627 |
| Score | 3 |
| Name | William HEFFERNAN |
| Country | Australia |
| Team | Ccache x Par Küp |
| Date | Race | Rank |
| New Zealand Cycle Classic | ||
| 10/01 | Stage 1 | 4 |
| 11/01 | Stage 2 | 27 |
| 12/01 | Stage 3 | 15 |
| 13/01 | Stage 4 | 14 |
| 14/01 | Stage 5 | 19 |
| General Classification | 15 | |
| 20/01 | Gravel and Tar Classic | 18 |
| Tour de Taiwan | ||
| 10/03 | Stage 1 | 37 |
| 11/03 | Stage 2 | 51 |
| 12/03 | Stage 3 | 13 |
| 13/03 | Stage 4 | 18 |
| 14/03 | Stage 5 | 49 |
| General Classification | 32 | |
| 12/04 | Oceania Continental Championships Road Race | 43 |
| Czech Tour | ||
| 28/07 | General Classification | 107 |
| Tour of Taihu Lake | ||
| 09/10 | Stage 1 | 17 |
| 10/10 | Stage 2 | 44 |
| 11/10 | Stage 3 | 57 |
| 12/10 | Stage 4 | 15 |
| 13/10 | Stage 5 | 32 |
| General Classification | 34 |
Rider information for 2024
| Rank | 1772 |
| Score | 7 |
| Name | William HEFFERNAN |
| Country | Australia |
| Team | Ccache x Par Küp |
| Date | Race | Rank |
| Tour de Taiwan | ||
| 16/03 | Stage 1 | 37 |
| 17/03 | Stage 2 | 11 |
| 18/03 | Stage 3 | 6 |
| 19/03 | Stage 4 | 31 |
| 20/03 | Stage 5 | 56 |
| General Classification | 10 | |
| Tour of Hainan | ||
| 07/04 | Stage 1 | 18 |
| 08/04 | Stage 2 | 30 |
| 09/04 | Stage 3 | 66 |
| 10/04 | Stage 4 | 15 |
| 11/04 | Stage 5 | 67 |
| General Classification | 46 |
Rider information for 2025
| Rank | 1931 |
| Score | 0 |
| Name | William HEFFERNAN |
| Country | Australia |
| Team | Ccache x Bodywrap |