[genewitch]

one of the only long speedruns i ever watched was the ~28 hour Red Dead Redemption 2 speedrun. these are called like no-glitch any% runs, meaning no sidestepping content in a way that isn't intended (eg in gta using an ambulance to get over the gated walls). So "the fastest a game can be played from beginning to end credits, normally."

These are different than the glitch any% runs, which, for example, Fallout 4 is something like 34 seconds, you do something to fall through the ground and then run to a specific place and it triggers the <no spoilers>, end credits roll.