Heavyweights is a 1995 comedy film about a fat camp for kids that is taken over by a fitness guru named Tony Perkis (Ben Stiller, who would later play a similar role in 2004's ).
Refers to a horse racing bet of the racecard number ones in all of the races in a particular meeting. Points awarded are 25pts to the race winner, 10 for second and 5 for third