Tuesday, March 11, 2008
Forecasting Standings
Please put in your own links. Here’s what I’ve found:
CHONE:
http://lanaheimangelfan.blogspot.com/2008/02/al-projected-standings.html
http://lanaheimangelfan.blogspot.com/2008/02/national-league-projected-2008.html
NL East
Mets 92-70
Phillies 87-75
Braves 83-79
Nationals 70-92
Marlins 70-92
Central
Cubs 87-75
Brewers 84-78
Reds 78-84
Astros 75-87
Pirates 75-87
Cardinals 75-87
West
Diamondbacks 85-77
Dodgers 84-78
Padres 84-78
Rockies 77-85
Giants 72-90
AL East
Red Sox 92-70
Yankees 92-70
Rays 89-73
Blue Jays 83-79
Orioles 65-97
AL Central
Indians 92-70
Tigers 91-71
White Sox 76-86
Twins 76-86
Royals 70-92
AL West
Angels 91-71
Mariners 83-79
Athletics 75-87
Rangers 72-90
PECOTA (via some other site):
AL East
New York Yankees 96-66
Boston Red Sox 93-69
Toronto Blue Jays 83-79
Tampa Bay Rays 82-80
Baltimore Orioles 69-93
AL Central
Cleveland Indians 89-73
Detroit Tigers 89-73
Chicago White Sox 77-85
Minnesota Twins 74-88
Kansas City Royals 71-91
AL West
Los Angeles Angels 89-73
Oakland Athletics 78-84
Texas Rangers 74-88
Seattle Mariners 73-89
NL East
New York Mets 96-66
Atlanta Braves 86-76
Philadelphia Phillies 84-78
Florida Marlins 76-86
Washington Nationals 72-90
NL Central
Chicago Cubs 89-73
Milwaukee Brewers 87-75
Cincinnati Reds 79-83
Houston Astros 74-88
St. Louis Cardinals 72-90
Pittsburgh Pirates 71-91
NL West
Arizona Diamondbacks 86-76
Los Angeles Dodgers 86-76
San Diego Padres 83-79
Colorado Rockies 82-80
San Francisco Giants 72-90
CAIRO:
AL East W L
Bos07 97 65
NYA07 96 66
Tor07 87 75
Tam07 78 84
Bal07 69 93
AL Central W L
Cle07 91 71
Det07 90 72
KC07 75 87
Min07 74 88
ChA07 68 94
AL West W L
LAA07 89 73
Oak07 78 84
Sea07 77 86
Tex07 75 87
NL East W L
NYN07 92 70
Atl07 84 78
Phi07 83 79
Was07 75 87
Flo07 70 92
NL Central W L
Mil07 85 77
ChN07 84 78
Cin07 81 81
StL07 77 85
Hou07 74 88
Pit07 67 95
NL West W L
Ari07 85 77
LAN07 84 78
Col07 83 79
SD07 82 80
SF07 79 83


Nate tells us who the over and under achieving teams are:
http://baseballprospectus.com/unfiltered/?p=792
I’d like to see the whole list. After all, it could simply be noise. But, we can take a guess based on the numbers that have been reported. Over 5 seasons (810 games), 1 SD = 14.2 wins, if all was random. What is the SD of Nate’s list? I don’t know, but I’ll guess it is around 1 SD = 20 wins. So, the spread is about 1.4 times wider than random, meaning that the difference in forecast was not just by luck.
Among the reasons that Nate listed, I think fielding may probably be one, but it depends how he handles ERA for pitchers. After all, if a pitcher primarily pitchers with the same fielders behind him, year-to-year, then his forecast will include the fielders themselves.
Teams with alot of young players may be another source of uncertainty, since you have less playing time to forecast with them.
Righting-the-ship, meaning throwing money at the problem, or bringing up players faster than planned, might be another source, as he noted.
I don’t like his chart at the end, as it could very well be that *all* forecasting systems followed that “trend”. It’s not a trend so much as luck. That chart only makes sense in conjunction with other similar charts.