Just to add, Yankees reliever Duke was 11-1 with a 1.37 ERA, in 116 IP, 51 hits, 48 walks, 140 strikeouts.
He led the league in saves, strikeouts per inning, and hit batsmen. "This guy threw at his own kid at a father son game" lol

As far as hard stats, we really don't get much. All we know is:
-Dorn hit .271 with 86 RBI. This is revealed during the final game vs. the Yankees. Given his position as the team's #3 hitter, Dorn probably also had decent power in the 20 home run range.
-Hayes hit .291, also revealed during the final game vs. the Yankees, and stole a lot of bases. How many he actually stole is never revealed, though you can get a rough estimate by counting the number of batting gloves he's nailed to his wall.
For the other featured players, however, it's pure speculation:
-We know Harris won at least 9 games, as it's mentioned after a win over the Tigers that he has picked up his 9th win of the season. However, this is before the team goes on its 32-9 hot streak to finish the season, so how many wins he had when all was said and done is anyone's guess, though I will say that 13-15 wins seems about right.
-It's revealed during the opening of Major League II that Cerrano finished the year ranked among the league's Top 5 in home runs, RBI, and Slugging Percentage. We know that the Yankees' Haywood led the American League with 48 homers and 121 RBI (all the while winning the batting title with a .341 AVG thus winning the Triple Crown), but there's no way of knowing by how wide a margin he led in these categories it's possible that he completely blew everyone else away! Still, I think it's safe to assume that Cerrano hit at least 30 home runs (maybe even as many as 40, but definitely no more than 48) while driving in at least 100 runs. As for his average, I'll say that Cerrano doesn't come across as a .300 hitter, but as an all-or-nothing slugger with a high strikeout total (he either hits a home run or strikes out whenever we see him at bat), so his average probably falls somewhere around .260.
-Vaughn probably ranked among the league leaders in strikeouts, and I'm guessing that he had a 17-win season.
-As for Taylor, all Doyle says about him in the opening of Major League II is that he was a "team leader" who had a "fine season", which, inspiring as it may sound, is not much to go by. We can speculate that he had a relatively high on-base percentage and picked up more than his share of walks, as otherwise I can fathom no reason for his batting second in the order (40 year old, supposedly over-the-hill catchers aren't exactly your ideal #2 hitters). His batting average was probably around .280.