Postseason Odds

Playing the rest of the season a million times

by Clay Davenport

See the Forecast-adjusted version of this report.

Generated Sun Jul 6 07:52:12 AM EDT 2025


Average wins by position in AL East:  94.6 90.0 86.2 81.7 69.0
AL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Blue Jays         51   38   .521   88.7   73.3   22.94090   55.80430   78.74520        1.67340  27.58270
Rays              48   41   .547   87.5   74.5   16.91520   54.50620   71.42140       -5.30600 -19.11320
Yankees           48   41   .609   92.3   69.7   54.96360   37.89080   92.85440       -2.24490  -5.35630
Red Sox           45   45   .546   83.9   78.1    5.17620   37.68750   42.86370        3.41360   8.35140
Orioles           39   49   .417   69.1   92.9     .00410     .18230     .18640         .03470    .01250

Average wins by position in AL Central:  96.8 81.9 77.1 72.0 58.8
AL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Tigers            56   34   .560   96.8   65.2   98.38680     .99210   99.37890         .10430    .49830
Twins             43   46   .487   79.2   82.8    1.02660   12.90470   13.93130         .99460  -7.62060
Royals            42   48   .484   77.8   84.2     .49680    7.74150    8.23830       -4.08970  -9.75980
Guardians         40   47   .437   73.9   88.1     .08980    2.02840    2.11820       -0.80690  -5.83470
White Sox         30   59   .395   58.8  103.2     .00000     .00000     .00000         .00000  -0.00020

Average wins by position in AL west:  95.3 87.0 81.5 74.2 65.8
AL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Astros            54   35   .548   94.8   67.2   84.68540   12.48580   97.17120         .24261   2.55210
Mariners          47   42   .525   85.8   76.2   11.33710   47.36760   58.70470        4.11670  17.25680
Rangers           44   45   .525   82.5   79.5    3.84110   27.92490   31.76600        2.92620  -6.78070
Angels            43   45   .426   74.4   87.6     .13600    2.45460    2.59060       -1.02990  -1.78770
Athletics         37   54   .415   66.4   95.6     .00040     .02930     .02970       -0.02870  -0.00060

Average wins by AL Wild Card:  90.8 88.0 87.8

Average wins by position in NL East:  94.8 88.9 78.0 72.5 66.1
NL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Phillies          52   37   .538   91.3   70.7   46.76530   39.09480   85.86010        1.72730  15.21210
Mets              52   38   .558   92.3   69.7   52.90940   36.66980   89.57920        3.11450   4.36280
Marlins           40   47   .456   73.7   88.3     .09120     .92340    1.01460         .16890    .64550
Braves            39   49   .502   75.8   86.2     .23210    2.07110    2.30320       -1.00540  -6.67720
Nationals         37   52   .424   67.2   94.8     .00200     .01810     .02010       -0.01000    .00170

Average wins by position in NL Central:  96.6 89.1 84.9 80.7 73.9
NL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Cubs              53   36   .588   96.0   66.0   83.17210   14.03400   97.20610       -0.52210   4.20350
Brewers           49   40   .520   86.0   76.0    7.52150   42.04840   49.56990       -5.47870  -3.44790
Cardinals         48   42   .526   86.0   76.0    6.99010   42.12150   49.11160        5.19080  -6.34820
Reds              46   43   .510   82.7   79.3    2.27440   22.22040   24.49480       -3.04840  -0.92030
Pirates           38   52   .503   74.7   87.3     .04190    1.27100    1.31290       -0.70510    .70630

Average wins by position in NL West:  95.8 88.3 83.9 79.3 45.3
NL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Dodgers           56   34   .543   95.2   66.8   83.82900   12.33860   96.16760       -0.58290   1.89080
Giants            48   42   .500   83.9   78.1    5.08760   27.55170   32.63930        3.77820  -3.42180
Padres            47   41   .514   85.8   76.2    8.70430   39.37140   48.07570       -6.89020  -4.31890
Diamondbacks      44   45   .523   82.4   79.6    2.37910   20.26580   22.64490        4.26310  -1.88840
Rockies           20   69   .351   45.3  116.7     .00000     .00000     .00000         .00000    .00000

Average wins by NL Wild Card:  91.8 89.0 86.6

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.