This is basically Spider-Man versus Flash, which turns out to be pretty fun.
Now a word about Speed Demon: He first appeared as The Whizzer from Squadron Sinister. Then came Squadron Supreme, with its own Whizzer, and the Invaders’ version of Whizzer (Earth 616’s) became an Avengers hanger-on. So finally, one of them blinked in this game of confusing same-name chicken.
This guy.
Spidey beats him with grease…