I was looking at building a new team and while drafting I came across a player I had recently used in another league and looked up his performance history to compare him to another player. Under his PH he has just one use and some of the stats match up perfectly with my recent use, but some of the stats are very different.

League #: MLB87023

I played in Riverfront: -2/2/0/1/1

1945 Les Webber for me:
Player SN T G GS CG SHO W L SV SVO IP H R ER HR BB SO OAV OBP SLG WHIP ERA

Webber, Les 1945 R 59 0 0 0 5 3 1 2 72.7 72 38 35 6 20 34 .258 .307 .380 1.27 4.33

From the PH:

Type # GP GS CG W L SV IP ER H HR SO BB HBP WP K/9 BB/9 WHIP OAV ERA 1B 2B 3B LF RF
Best 1 59 0 0 5 3 1 73 35 72 6 34 20 1 0 4.21 2.48 1.28 .248 4.33 -2 2 0 1 1

Stats that differ are in bold.

Actually, it looks like just the OAV and WHIP are different, all other stats match (even the BB/9 and K/9 which I looked up in the extended stats on my team page).

Does anyone know why this would be? I went ahead and sent in a ticket as well.

I've noticed that some stats look odd for players with low usage. my only guess is that partial seasons or seasons in progress may be included in some categories but not in others.

How much stock does everyone put in performance history?

What if there's a guy with really good stats, but in 20 uses, his average season in an average park is horrible? How do you tell if you should steer clear of him or if maybe the owners that have used him have just poorly managed or overused him?

admin responded to my ticket. It was an error that they've now fixed.

Doesn't make you all that confident in the performance histories, though. To answer your question Jtpsops, I sometimes glance at the performance history. In reality, though, the performance history is still a less effective tool than the stats and normalized stats. What opponents a player ran into in a given league can significantly impact his stats. Some OLs definitely trend toward offense while others trend toward pitching; some towards power teams and some more towards speed. This makes the performance history stats opponent-dependent, particularly for guys with only a few uses. This thread indicates that the numbers in the performance history may not even be reliable. If that significant of a discrepance occurred for every player season of a guy who's been used 40 times, it would make his performance look significantly different from how he's really performed but nobody would ever catch it. In short, the player stats are the exact numbers the sim engine uses when it calculates the results of each PA (along with the now-available yearly league statistics). There's not really any ambiguity with that and I tend to trust it much more.

Quote: Originally posted by Jtpsops on 1/06/2010How much stock does everyone put in performance history?

The only time I use it is when I'm stuck on a decision between two or three players.