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 |
| Tour de Kumano | ||
| 03/06 | Stage 1 | 36 |
Rider information for 2023
| Rank | 3659 |
| 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 |
| Tour de Kumano | ||
| 10/05 | Stage 1 | 36 |
| 11/05 | Stage 2 | 14 |
| 12/05 | Stage 3 | 11 |
| General Classification | 18 | |
| 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 | 1886 |
| Score | 8 |
| Name | William HEFFERNAN |
| Country | Australia |
| Team | Ccache x Par Küp |
| Date | Race | Rank |
| 08/02 | Melbourne - Warrnambool Classic | 32 |
| 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 | |
| Tour of Japan | ||
| 18/05 | Prologue | 20 |
| 19/05 | Stage 1 | 12 |
| 20/05 | Stage 2 | 14 |
| 21/05 | Stage 3 | 27 |
| 22/05 | Stage 4 | 4 |
| 23/05 | Stage 5 | 32 |
| 24/05 | Stage 6 | 14 |
| 25/05 | Stage 7 | 17 |
| General Classification | 21 | |
| Tour of Magnificent Qinghai | ||
| 06/07 | Stage 1 | 39 |
| 07/07 | Stage 2 | 87 |
| 08/07 | Stage 3 | 52 |
| 09/07 | Stage 4 | 53 |
| 10/07 | Stage 5 | 25 |
| 11/07 | Stage 6 | 52 |
| 12/07 | Stage 7 | 100 |
| 13/07 | Stage 8 | 78 |
| General Classification | 56 | |
| Czech Tour | ||
| 14/08 | Stage 1 | 71 |
| 15/08 | Stage 2 | 47 |
| 16/08 | Stage 3 | 62 |
| 17/08 | Stage 4 | 33 |
| General Classification | 35 | |
| Tour de Kyushu | ||
| 11/10 | Stage 1 | 36 |
| 12/10 | Stage 2 | 54 |
| 13/10 | Stage 3 | 62 |
| General Classification | 59 |
Rider information for 2025
| Rank | 4138 |
| Score | 1 |
| Name | William HEFFERNAN |
| Country | Australia |
| Team | Ccache x Bodywrap |
| Date | Race | Rank |
| 28/02 | Melbourne - Warrnambool Classic | 27 |
| Tour of Hainan | ||
| 19/04 | General Classification | 55 |
Rider information for 2026
| Rank | 2299 |
| Score | 0 |
| Name | William HEFFERNAN |
| Country | Australia |
| Team | Ccache x Bodywrap |