There's no need to be reckless and let him try and complete the game, but I'd imagine he could go 1 more. Letting him pitch 8 and 9 probably isn't smart though regardless of situation. Assuming he doesn't have like a 10 or less pitch 7th and 8th. you realize he's throwing a no hitter right? just making sure because the way you worded it makes it seem like you randomly were wondering if they'll let him throw a complete game or something Yes I am aware, there's no reason to make him throw 120+ pitches Go eat a sandwich by yourself