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Rollout or rollout allowance is an adjustment in timed acceleration runs used by North-American drag racing and enthusiast magazines [citation needed] to create approximate parity over time between historic 0 to 60 mph and 1/4 mile acceleration times and those measured today using the Global Positioning System (GPS).
One of the most noted runners in the United States, Steve Prefontaine used negative splits to train and compete in high school. In one example, Prefontaine's goal was to run a 9:44 two-mile, requiring a 73-second pace per lap. Instead of running a flat pace, Prefontaine's coach, Walt McClure, had him run the first six laps at 75 seconds per lap.
On 24 April 2021, he set both the 100-mile and the 12-hour world records during the Centurion Running Track 100 Mile in England (official record ratifiable splits are also taken there at the 50 km, 5 mile, 100 km, 6 hrs and 12 hrs en route). His 100-mile (160.934 kilometers) world record was a time of 11:14:56, and his 12-hour world record was ...
Pacemakers are also used in horse racing, where in "classic" distance races (over 1 mile or 8 furlongs or 1.5 kilometres) horses that are better at sprint distances (roughly 5– 6 + 1 ⁄ 2 furlongs or 1.0–1.3 kilometres) may be entered into major races specifically to set the pace for the top horses from the same stable.
Drivers 13-18 are restricted to 7.90 in the eighth mile, with an absolute limit of 7.50 (or 4.10) and 85.00 MPH. Drivers in Jr Comp are restricted to 6.90 in the eighth mile, with an absolute limit of 6.70 and 110.00 MPH. Drivers who exceed the absolute limit are subject to further NHRA discipline. Examples:
A race on a special stage is coordinated such that each competing racer begins after a set interval, to reduce the chance of impedance by other competitors. Each special stage is usually between 10 kilometres (6.2 mi) and 30 kilometres (19 mi) in length. Some stages may be as long as 50 kilometres (31 miles) in length.
The track is billed as the "World's Fastest Quarter Mile Oval." The current track record was set by Jeff Bloom in a 410 extreme winged sprint car on August 21, 2010 at a time of 9.908 seconds. [1] This is the first lap record under 10 seconds on a quarter mile oval track of any type, breaking Anderson Speedway's 10.28 second lap record. [1]
A Suzuki GSX-R1000 at a drag strip – a 2006 model once recorded a 0 to 60 mph time of 2.35 seconds. This is a list of street legal production motorcycles ranked by acceleration from a standing start, limited to 0 to 60 mph times of under 3.5 seconds, and 1 ⁄ 4-mile times of under 12 seconds.