| John Loveday |
|
As a helmsman in 1993 in the World Championship on 8423 |
| John Macarthur-King |
|
As a crew in 2020 in the Australian National Championships on 9074 |
| John Maddocks |
|
As a crew in 1980 in the World Championship on 6844 |
| John Marshall |
|
As a helmsman in 1967 in the North American Championship on 2662 |
| John McLaren |
|
As a helmsman in 1990 in the UK National Championship on 8080 |
| John McLean |
|
As a crew in 2023 in the Riva del Garda on 9225 |
| John McLeman |
|
As a helmsman in 1987 in the UK National Championship on 6790 |
| John Meade |
|
As a helmsman in 2001 in the Pre-Worlds on 7069 |
| John Mellnik |
|
As a crew in 2024 in the Santa Cruz Summer Regatta on 8266 |
| John Mildred |
|
As a crew in 2000 in the Cavalaire on 8701 |
| John Moss |
|
As a helmsman in 1990 in the World Championship on 7687 |
| John Murphy |
|
As a helmsman in 1986 in the UK National Championship on 7018 |
| John Norheim |
|
As a helmsman in 1968 in the North American Championship on 0 |