It's about as fast as Flo-Jo.
(at the Seoul Olympics, 1998) (a.k.a. Florence Griffith-Joyner, a.k.a. Florence Delorez Griffith) (swimmer; 1959-1998)
Setting a world record in 1988, Flo-Jo ran a 200 m in 0:21.34 for an average speed of 0.02827 mach. Known as a 200 m runner, Joyner also set a record time in a 100 m race at in 1987.
It's about nine-tenths as fast as Usain Bolt.
In other words, 0.02827 mach is 0.910 times the speed of Usain Bolt, and the speed of Usain Bolt is 1.10 times that amount.(at the Beijing Olympics, 2008) (a.k.a. Usain St. Leo Bolt, OJ, C.D.) (sprinter; 1986-)
Setting a world record, Usain Bolt ran a 100 m in 0:09.69 for an average speed of 0.0312 mach at the 2008 Olympics. Furthermore, Bolt's margin of record breaking — 0.03 s — is the largest margin of victory in the history of digital measurements.
It's about nine-tenths as fast as Michael Johnson.
In other words, 0.02827 mach is 0.90560 times the speed of Michael Johnson, and the speed of Michael Johnson is 1.1040 times that amount.(a.k.a. Michael Duane Johnson) (sprinter; 1967-) (at the Atlanta Olympics, 1996)
Setting a record that stood for 12 years, Michael Johnson ran a 200 m in 0:19.32 for an average speed of 0.03123 mach at the 1996 Olympics. Johnson was nicknamed "the Man with the Golden shoes" in recognition of the custom footwear worn during these races — a pair of Nikes with a left size of 10.5 and a right size of 11.
It's about one-and-one-fourth times as fast as Noah Ngeny.
In other words, 0.02827 mach is 1.2370 times the speed of Noah Ngeny, and the speed of Noah Ngeny is 0.80840 times that amount.(in Rieti, Italy; 1999) (sprinter; 1978-)
Setting a world record at the Rieti Grand Prix in 1999, Noah Ngeny ran 1,000 m in 2:11.96 for an average speed of 0.02286 mach. According to some reports, Ngeny did not begin running competitively until just three years before setting the record.
It's about one-and-two-fifths times as fast as a Bull.
In other words, the speed of a Bull is 0.710 times 0.02827 mach.(for animals involved in the Running of the Bulls, a.k.a. Encierro, San Fermin, Pamplona, Spain) (herd average speed)
The herd of the annual Encierro in Pamplona, Spain runs at an average speed of 0.02 mach. The Encierro is run annually from July 7th through July 14th and involves 42 bulls, 77 oxen, and an estimated 17,000 runners over the course of the event.
It's about three-fifths as fast as Secretariat.
In other words, 0.02827 mach is 0.5580 times the speed of Secretariat, and the speed of Secretariat is 1.790 times that amount.(at Belmont Stakes, 1973)
Setting a record finish, Secretariat ran the Belmont Stakes — a 12 furlong race length — in 2:24, for an average speed of 0.0506 mach in 1973. His margin of victory in the race, also a record-setter, was 31 lengths.
It's about half as fast as a Gazelle.
In other words, the speed of a Gazelle is 2 times 0.02827 mach.(for Thomson's Gazelle, a.k.a. Eudorcas thomsoni, a.k.a. "Tommie", a.k.a. "Tommy")
A Thomson's gazelle can reach speeds of up to 0.07 mach. The gazelle's speed doesn't match that of its chief predator, the cheetah, but a gazelle's endurance usually ensures an escape in distances greater than 500 m (0.3 mi).