Sonic is fast, but speed runs of Sonic games really show you just how fast he can be. Especially if you pull off the right moves, the speed is your biggest reward. And a new world record, if you’re really good. Well, Sonic speed runners will be back in force for a two-day event: Sonic Speed Marathon 2017. The stream will begin April 29th at 9:00am Eastern/2pm UK time. The team uploaded a trailer to their official channel. You can check it out down below. A schedule of the games that will be played will be released soon.