Octave John Claes (; 11 August 1916 – 3 February 1956) was a British-born racing driver who competed for Belgium. Before his fame as a racing driver, Claes was also a jazz trumpeter and successful bandleader in Britain.
In April 1951 Claes crashed into a crowd while practicing at San Remo Grand Prix in Sanremo, Italy. He was uninjured but an observer was killed and three onlookers were seriously injured. In 1952 he exchanged his outdated Talbot for a Gordini, and later for a Connaught, always with the Écurie Belge colours, but he also raced occasionally for works teams, including Gordini and Maserati. He also won the 1953 Liège–Rome–Liège Rally and took a class win at the 1954 24 Hours of Le Mans. Claes teamed with Pierre Stasse to finish 12th in the 1954 24 Hours of Le Mans. They drove a Porsche. Together with compatriot Jacques Swaters, Claes finished third in the 1955 24 Hours of Le Mans.
Later in 1955 Claes's health problems worsened, as he had contracted tuberculosis. Claes sold his outfit to Swaters, who merged it with his own Écurie Francorchamps to form Écurie Nationale Belge. Claes entered occasional events until the end of the year, but finally succumbed to the disease in Brussels in 1956, aged 39.
1950 ! Écurie Belge ! Talbot-Lago T26C ! Talbot L6 | GBR | MON | 500 | SUI | BEL | FRA | ITA | ! NC ! 0 | |||
1951 ! Écurie Belge ! Talbot-Lago T26C-DA ! Talbot L6 | SUI | 500 | BEL | FRA | GBR | GER | ITA | ESP | ! NC ! 0 | ||
1952 ! Gordini ! Gordini T16 ! Gordini L6 | SUI | 500 | BEL | !rowspan="4" NC !rowspan="4" | 0 | ||||||
1953 ! Écurie Belge ! Connaught Type A ! Lea-Francis L4 | ARG | 500 | NED | FRA | GBR | GER | SUI | ITA !rowspan="2" | NC !rowspan="2" | 0 | |
1955 ! Stirling Moss ! Maserati 250F ! Maserati L6 | ARG | MON | 500 | BEL | !rowspan="2" NC !rowspan="2" | 0 | |||||
1950 ! Johnny Claes ! Talbot-Lago T26C ! Talbot L6 | PAU | RIC | SRM | PAR DNA | EMP | BAR | JER | ALB | NED | NAT | NOT | ULS | PES | STT | INT | GOO | PEN | |||||||||||||||||||
1951 ! Johnny Claes ! Talbot-Lago T26C-DA ! Talbot L6 | SYR | PAU | RIC | SRM | BOR | INT | PAR | ULS | SCO | NED | ALB | PES | BAR | GOO | ||||||||||||||||||||||
1952 !rowspan=3 | Johnny Claes ! Talbot-Lago T26C-DA ! Talbot L6 | RIO | SYR | VAL | RIC | LAV | PAU | IBS | ULS DNA | |||||||||||||||||||||||||||
1953 ! Johny Claes ! Connaught Type A ! Lea-Francis L4 | SYR | PAU | LAV | AST | BOR | INT | ELÄ | NAP | ULS | WIN | FRO | COR | EIF | ALB | PRI | ESS | MID | ROU | CRY | AVU | USF | LAC | BRI | CHE | SAB | NEW | CAD | RED | SKA | LON | MOD | MAD | JOE | CUR | ||
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