| Joshua Lieberman |
|
As a crew in 2003 in the North American Championship on 7876 |
| Jotham Schwartz |
|
As a crew in 2023 in the Pre-Worlds & North American Championship on 8207 |
| Jouni Liljander |
|
As a helmsman in 2011 in the R1 – Lahti on 7956 |
| Jouni Valli |
|
As a helmsman in 2014 in the Nordic & Finnish Championship on 8430 |
| Jourquin Koen |
|
As a crew in 2014 in the Belgian Nationals on 9066 |
| Jørgen Bojsen-Møller |
|
As a helmsman in 2025 in the Internationale Deutsche Meisterschaft & Open Danish Championship on 9244 |
| Jørgen Holm-Nielsen |
|
As a helmsman in 1991 in the World Championship on 8108 |
| Jørgen Schönherr |
|
As a helmsman in 2001 in the Malmö – GUL on 8728 |
| Jude Beamers |
|
As a crew in 2022 in the Ovington Inland Championship on 9203 |
| Judith French |
|
As a helmsman in 1988 in the UK National Championship on 8117 |
| Judith Williamson |
|
As a helmsman in 2025 in the Open Regatta on 9180 |
| Juha Nurmela |
|
As a crew in 2025 in the Alfons Håkans HangöRegattan on 8912 |
| Juha Pietilä |
|
As a crew in 2014 in the World Championship on 8466 |
| Juhani Heimsch |
|
As a crew in 2025 in the Näsijärven Purjehdusseura/Näsijärvi Segelsällskap on 8053 |
| Jukka Hyvärinen |
|
As a crew in 2008 in the Pre-Worlds & EuroCup Finale on 8768 |