Postseason Odds

Playing the rest of the season a million times

by Clay Davenport

See the Forecast-adjusted version of this report.

Generated Thu Aug 28 07:52:20 AM EDT 2025


Average wins by position in AL East:  93.9 91.1 88.4 79.6 71.6
AL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Blue Jays         78   56   .553   92.7   69.3   56.09590   43.34370   99.43960         .03940    .31000
Red Sox           74   60   .567   89.7   72.3   15.37890   80.19330   95.57220         .25140  15.64030
Yankees           73   60   .610   91.0   71.0   28.52270   69.60960   98.13230         .11970  -0.59150
Rays              64   69   .533   79.5   82.5     .00250    2.10250    2.10500       -2.41040  -3.43240
Orioles           60   73   .436   71.6   90.4     .00000     .00010     .00010       -0.00180  -0.11800

Average wins by position in AL Central:  92.5 84.0 78.7 73.4 59.9
AL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Tigers            78   57   .542   92.5   69.5   97.74910    1.71960   99.46870       -0.34330  -0.33691
Royals            69   65   .513   83.8   78.2    2.18790   23.58590   25.77380        2.00680  -5.18410
Guardians         66   66   .433   78.7   83.3     .06290    1.43360    1.49650         .02530  -7.09870
Twins             60   73   .463   73.7   88.3     .00010     .00790     .00800       -0.01740  -0.31540
White Sox         48   85   .423   59.9  102.1     .00000     .00000     .00000         .00000    .00000

Average wins by position in AL west:  89.3 86.2 82.0 76.7 73.4
AL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Astros            73   60   .505   87.7   74.3   46.10680   37.41420   83.52100       -0.89760  -0.11110
Mariners          72   62   .525   87.5   74.5   51.02640   31.07680   82.10320         .98901   2.87830
Rangers           68   67   .530   82.2   79.8    2.85600    9.40910   12.26510         .34130  -0.89930
Athletics         63   72   .473   75.7   86.3     .00600     .06910     .07510         .00610  -0.00580
Angels            62   71   .423   74.5   87.5     .00480     .03460     .03940       -0.10850  -0.73540

Average wins by AL Wild Card:  91.2 88.8 88.7

Average wins by position in NL East:  92.2 87.4 77.2 74.0 64.6
NL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Phillies          76   57   .552   91.9   70.1   85.82040   13.70680   99.52720       -0.14440  -0.11810
Mets              72   61   .560   87.8   74.2   14.17610   76.21380   90.38990        4.79340  25.38770
Marlins           62   71   .471   76.0   86.0     .00300     .15750     .16050       -0.29410  -0.97800
Braves            61   72   .492   75.3   86.7     .00050     .03400     .03450         .00510  -0.19890
Nationals         53   80   .392   64.6   97.4     .00000     .00000     .00000         .00000    .00000

Average wins by position in NL Central:  99.0 93.4 82.0 77.3 71.8
NL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Brewers           83   51   .577   98.9   63.1   91.56690    8.43290   99.99980         .00000    .00150
Cubs              76   57   .577   93.5   68.5    8.43290   91.41070   99.84360       -0.05180    .17660
Reds              68   66   .504   81.5   80.5     .00020    6.93020    6.93040       -4.27150 -24.42520
Cardinals         65   69   .475   77.6   84.4     .00000     .35050     .35050       -0.54630  -2.75530
Pirates           59   75   .472   71.9   90.1     .00000     .00030     .00030       -0.00050  -0.00050

Average wins by position in NL West:  94.0 90.9 81.4 77.4 46.5
NL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Dodgers           77   57   .546   92.8   69.2   57.85190   41.89770   99.74960         .09610   1.58910
Padres            75   59   .555   92.1   69.9   42.12780   57.43430   99.56210       -0.08240   1.25771
Giants            65   68   .493   80.5   81.5     .01890    3.00680    3.02570         .46110   1.02530
Diamondbacks      65   69   .500   78.3   83.7     .00140     .42450     .42590         .03530  -0.96190
Rockies           38   95   .304   46.5  115.5     .00000     .00000     .00000         .00000    .00000

Average wins by NL Wild Card:  93.9 90.7 86.9

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.