Superhuman Speed – The ability to move, run, fly, react, think, and sense at speeds much faster than a normal human. Those with this ability also have accelerated brain activity which allows them to process sensory information so fast that everything seems to be moving in slow motion while the user moves at normal speed. Examples of characters with this power include Quicksilver (Marvel) and the Flash (DC).
In the series DC vs. Marvel, the Flash beat Quicksilver decisively.
Superman and the Flash have raced several times including: Superman #199 (tie), Superman #199 (undetermined), Flash #175 (undetermined), World’s Finest #198–199 (Flash wins), DC Comics Presents #1–2 (undetermined), Adventures of Superman #463 (Flash wins), Flash (second series) #136–138 (Flash wins), DC First: Flash/Superman (undetermined) and Flash (second series) #209 (Flash wins). The Flash does have more control of his speed at the micro level and can run on water and vibrate through walls unlike Superman.
There was a Galactic Marathon in the Marvel Universe. The tryouts included the Black Racer, Captain Marvel (Monica Rambeau), Makkari, Quicksilver, Speed Demon, Super Sabre, and the Whizzer. The actual Galactic Marathon included many one shot aliens. The fastest being in the Milky Way Galaxy was Makkari.
Johnny Quick (DC) is a Golden Age speedster (DC Who’s Who #11).
Quicksilver (Marvel) was a speed of sound rather than speed of light speedster during most of his career (DC Who’s Who #19).
Red Rush (Image) is the Invincible Universe’s resident speedster (Official Handbook of the Invincible Universe #2).
Zyklon (DC) was a Nazi speedster (DC Who’s Who #26).
Tony Langton aka The Excelerator is a speedster that is part of The Chimera Brigade (Titan).
Zip-Zap is a speedster in the Ultraverse (1993 SkyBox Ultraverse).
The Ben 10 Universe has three speedsters including:
Fastrack (Ben 10)
Jetray (Ben 10)
XLR8 (Ben 10)
Captain Sprocket is fooled by Speedo in Archie’s MadHouse #60.
Cheetara (Thundercats) is so fast that she can even take on Skeletor in He-Man-Thundercats #3.
Chun Li has super-fast kicks in Street Fighter 2 Turbo.
Edmond Honda has super-fast slaps in Street Fighter 2 Turbo.
In MPH #2 (Image), super speed is just a pill away.
The Purple Man (Archie) is so fast that he can fence himself in Madhouse #118.
Quickling – D&D 4th Edition – Monster Manual 1
Shamrock Man (Archie) can out race a bullet in Madhouse #118.
The Slowdown Punishment means that normal citizens seem like speedsters compared to the criminals in Superman V1 #181.
Velocity (Wildstorm) in the Cyberforce-Sourcebook #2.
Moonstalker (Marvel) is a Young God and appears in Spectacular Spider-Man Annual V1 #8.
The Speed Boys (DC) use radioactive sneakers to flee from Batman and the Flash in The Brave and the Bold V1 #67.
Jimmy Olsen (DC) gains super speed in Jimmy Olsen #15.
Lightning uses a suit to achieve superhuman speeds in T.H.U.N.D.E.R. Agents #5 (Tower).
The Tornado Twins (DC) are ancestors of the Flash as shown in Adventure Comics #373.
The Zephyrs use their super speed in a very logical manner in Uber Invasion #7 (Avatar).