First Class Challenge Participants
| Reunion Year | Winning Class | Participating Classes |
|---|---|---|
| 2023 | 1960 | 58, '61, '68, 73, '78, '83, '93, '03 |
| 2022 | 2001 | 58, '61, '68, 73, '78, '83, '93, '03 |
| 2021 | 1998 | 58, '61, '68, 73, '78, '83, '93, '03 |
| 2020 | 1987 | 58, '61, '68, 73, '78, '83, '93, '03 |
| 2019 | 2019 | 58, '61, '68, 73, '78, '83, '93, '03 |
| 2018 | 1988 | 58, '61, '68, 73, '78, '83, '93, '03 |
| 2017 | 1956 | 58, '61, '68, 73, '78, '83, '93, '03 |
| 2016 | 2006 | 58, '61, '68, 73, '78, '83, '93, '03 |
| 2015 | 2015 | 58, '61, '68, 73, '78, '83, '93, '03 |