Postseason Odds

Playing the rest of the season a million times

by Clay Davenport

See the Forecast-adjusted version of this report.

Generated Wed Oct 8 07:52:35 AM EDT 2025


Average wins by position in AL East:  94.0 94.0 89.0 77.0 75.0
AL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Blue Jays         94   68   .554   94.0   68.0  100.00000     .00000  100.00000         .00000    .00000
Yankees           94   68   .618   94.0   68.0     .00000  100.00000  100.00000         .00000    .00000
Red Sox           89   73   .566   89.0   73.0     .00000  100.00000  100.00000         .00000    .00000
Rays              77   85   .529   77.0   85.0     .00000     .00000     .00000         .00000    .00000
Orioles           75   87   .439   75.0   87.0     .00000     .00000     .00000         .00000    .00000

Average wins by position in AL Central:  88.0 87.0 82.0 70.0 60.0
AL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Guardians         88   74   .466   88.0   74.0  100.00000     .00000  100.00000         .00000    .00000
Tigers            87   75   .522   87.0   75.0     .00000  100.00000  100.00000         .00000    .00000
Royals            82   80   .512   82.0   80.0     .00000     .00000     .00000         .00000    .00000
Twins             70   92   .462   70.0   92.0     .00000     .00000     .00000         .00000    .00000
White Sox         60  102   .414   60.0  102.0     .00000     .00000     .00000         .00000    .00000

Average wins by position in AL west:  90.0 87.0 81.0 76.0 72.0
AL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Mariners          90   72   .547   90.0   72.0  100.00000     .00000  100.00000         .00000    .00000
Astros            87   75   .502   87.0   75.0     .00000     .00000     .00000         .00000    .00000
Rangers           81   81   .521   81.0   81.0     .00000     .00000     .00000         .00000    .00000
Athletics         76   86   .471   76.0   86.0     .00000     .00000     .00000         .00000    .00000
Angels            72   90   .400   72.0   90.0     .00000     .00000     .00000         .00000    .00000

Average wins by AL Wild Card:  94.0 89.0 88.8

Average wins by position in NL East:  96.0 83.0 79.0 76.0 66.0
NL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Phillies          96   66   .573   96.0   66.0  100.00000     .00000  100.00000         .00000    .00000
Mets              83   79   .558   83.0   79.0     .00000     .00000     .00000         .00000    .00000
Marlins           79   83   .462   79.0   83.0     .00000     .00000     .00000         .00000    .00000
Braves            76   86   .488   76.0   86.0     .00000     .00000     .00000         .00000    .00000
Nationals         66   96   .383   66.0   96.0     .00000     .00000     .00000         .00000    .00000

Average wins by position in NL Central:  97.0 92.0 83.0 78.0 71.0
NL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Brewers           97   65   .585   97.0   65.0  100.00000     .00000  100.00000         .00000    .00000
Cubs              92   70   .587   92.0   70.0     .00000  100.00000  100.00000         .00000    .00000
Reds              83   79   .510   83.0   79.0     .00000  100.00000  100.00000         .00000    .00000
Cardinals         78   84   .457   78.0   84.0     .00000     .00000     .00000         .00000    .00000
Pirates           71   91   .474   71.0   91.0     .00000     .00000     .00000         .00000    .00000

Average wins by position in NL West:  93.0 90.0 81.0 80.0 43.0
NL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Dodgers           93   69   .569   93.0   69.0  100.00000     .00000  100.00000         .00000    .00000
Padres            90   72   .543   90.0   72.0     .00000  100.00000  100.00000         .00000    .00000
Giants            81   81   .484   81.0   81.0     .00000     .00000     .00000         .00000    .00000
Diamondbacks      80   82   .515   80.0   82.0     .00000     .00000     .00000         .00000    .00000
Rockies           43  119   .291   43.0  119.0     .00000     .00000     .00000         .00000    .00000

Average wins by NL Wild Card:  92.0 90.0 82.9

As the title says, the post-season odds report was compiled by running a Monte Carlo simulation of the rest of the season one million times. Current wins, losses and expected winning percentages are taken from the Adjusted Standings Report.

Expected winning percentages (EWP) for each team starts with their W3 and L3 from the Adjusted Standings. A regression is applied to derive the EWP for the rest of the season, which is going to be between the current winning percentage and .500. To allow for uncertainty in the EWP, a normal distribution centered on the EWP is randomly sampled, and that value is used for the remainder of the season in that iteration. To simulate the normal 4% home-field advantage, the home team gets a .020 point bonus, while the visitors take a 0.020 penalty. The likelihood of winning each game is determined by the log5 method. W and L are the team's wins and losses through yesterday's games.

Pct3 is the expected winning percentage, taken from W3 and L3, with the regression-to-mean component.

Avg W and Avg L are the average number of wins and losses each team finishes over the million season iterations.

Champions is how often, in percentage terms, this team won the championship of their division. Ties are not broken, but credited as 0.5 championships apiece (for a two-way tie), .333 apiece for a three-way tie, .25 for four-way, etc. This is why the final decimal place is not an error!

Wild Card is how often, in percentage terms, this team won the wild card. As with championships, ties are not broken, but apportioned among the tied teams.

Playoffs is how often, in percentage terms, the team either wins the division or the wild card.