I've done some testing on the July 12/19th build(PS2/Xbox) with the final build and the main difference I am seeing for Speedrunning is the Alpha build outside of how buggy it can be with rain(Xbox only) on gives you the chance to skip the celebration/Negative reaction animations. The final build does not allow this as you are forced to watch it. I did not realize this sooner due to never touching the Final Build because I hate 2006 and figured to just run the prototype version. For any future runners that plan on running the game's Individual Courses, Stick to the PS2 July 12/19th or Xbox July 12th build. Edit: This applies to Real Time Event mode as well since there is no need to change your clock to the time frame needed. Good luck maxing your character though. As I am typing this, I notice that you cannot skip the animations in the final build even if you hole out from a chip shot and the like. I've made a video here for reference. All 18 holes. However, the PS2 version is still the slowest so stick to the Xbox.

I've made a Variable tag to seperate the 2 builds now. I'm also noticing that the final build does horribly with the Pressure Moments off as far as actually disabling pressure moments with a saved player and not that great in the Gamebreaker department.