at least 1750 with the largest being lucas' 2000 something. All you gotta do throw the bat a few times and hit the bag around the tip of the bat and you will get at least 1600.
ps. the game comes with a replay of lucas hitting a home run around 2300.

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Super Smash Bros. Brawl: 3952-6694-1082(TOMMR)
Mario Kart: 1676 4068 4900
(Record as of 4/28:5560 W:77 L:31)