I just did a test run to see if a League Play WR would be viable. I set the following options:
• Swing Spot → Pitch Locator • Difficulty: Medium (opponents throw ball quicker, don't hold on to it) • Innings: 6 • Errors: Off
I did the initial setup plus four games, using a predetermined "ideal" lineup I'd come up with. These are the times I got:
Set Team: 0:37 Game 1: 16:43 (unlucky with two opponent HRs) Game 2: 30:00 Game 3: 45:05 Game 4: 59:24
Average Game Time (minus setup): 14:42 Expected Finish Time (14 season, 7 playoff): 5:08:37
Five hours is definitely not outside the realm of possibility for a speedrun. I, at least, would consider going for this record.
I would do it as well. This summer I won't be working for about a month which will allow me to red educate myself to this game.