Fast52

Fast52 was a Twitch global emote for Fast 52, a 52-hour video game speedrunning charity marathon held from September 26 to 28, 2025 at Thunder Studios in Long Beach, California. The event followed Fast 50 and mixed conventional speedruns with creator challenges while viewers donated to charity. The "52" in the command was literal: the marathon ran continuously for 52 hours.

The venue admitted a live audience around the clock, and the fundraiser ultimately passed $250,000 across four nonprofit causes. "Fast" referred to the speedrunning format, while "52" referred to the duration of the marathon.

When this emote was active, viewers typed Fast52 in Twitch chat to use it. Viewers used Fast52 during the marathon for fast finishes, personal-best pace, difficult skips, race-style challenges, donation milestones and moments when a runner was beating the clock.