Prost–Senna rivalry

The Prost–Senna rivalry, or Senna–Prost rivalry, was a Formula One rivalry between French racing driver Alain Prost and Brazilian racing driver Ayrton Senna. Widely regarded as one of the fiercest rivalries in Formula One history, Prost and Senna together won seven of nine Formula One World Drivers' Championship titles between 1985 and 1993, including two whilst teammates at McLaren from 1988 to 1989.

The rivalry peaked during their two-year period as teammates, as well as Prost's first year at Ferrari in 1990, with the pair finishing 1–2 in each championship. Whilst teammates, Prost and Senna won 25 of 32 Grands Prix—including 11 consecutively from the start of 1988—with Senna winning the former title and Prost winning the latter. Senna led Prost 14–11 in race wins and 26–4 in pole positions; Prost held a 12–6 lead in fastest laps, 25–18 in podium finishes, and 163–150 in championship points. Their rivalry culminated in title-deciding collisions at Suzuka in 1989 and 1990, despite Prost's move to Ferrari in the latter, with Prost winning the former championship and Senna taking the following. They again finished 1–2 in the championship standings in 1993, with Prost winning the title for Williams.

Whilst competing together in Formula One, both drivers traded accusations of dishonourable conduct and of receiving preferential treatment from external sources. Nonetheless, they held mutual respect for their driving abilities, and both admitted that they used the rivalry as motivation for success. Prost retired at the end of the 1993 season, three races before Senna's death at the 1994 San Marino Grand Prix. At the end of their respective careers, Prost held the records for most wins (51), fastest laps (41), and podium finishes (106), whilst Senna held the record for most pole positions (65); Prost won four World Drivers' Championships—three with McLaren and one with Williams—and Senna won three, all with McLaren.