That year he won the World Professional individual pursuit title beating Francesco Moser in the final.

As a professional Oosterbosch was especially successful in time trials; he won 14 stage race prologues, including three in the Tour de France.

Oosterbosch also won stages in the Vuelta a España and the Tour de Suisse.

Five days later he died, aged thirty-two years old, after an acute cardiac arrest.

[2] Willy Voet, the disgraced former soigneur, talks about Oosterbosch riding the 1982 Grand Prix des Nations.