Postseason Odds, Forecast version

Playing the rest of the season a million times

with some help from my forecasts

by Clay Davenport

See the original version of this report, based entirely on real data (no projections).

*** Now with ** 3 ** wild cards per league ***

Generated Tue Aug 25 07:53:21 AM EDT 2026


Average wins by position in AL East:  95.0 91.7 88.0 80.1 76.5
AL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Rays              78   53   .541   94.0   68.0   64.31570   35.68250   99.99820
Yankees           74   56   .554   92.0   70.0   30.29670   69.65730   99.95400
Red Sox           72   59   .551   88.7   73.3    5.38750   93.42630   98.81380
Blue Jays         64   68   .492   79.0   83.0     .00000   13.06640   13.06640
Orioles           63   68   .482   77.7   84.3     .00010    5.82940    5.82950

Average wins by position in AL Central:  84.6 81.8 79.1 76.1 70.8
AL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
White Sox         68   63   .487   83.0   79.0   49.21930   16.96180   66.18110
Guardians         66   66   .528   82.5   79.5   40.05260   19.79050   59.84310
Twins             64   68   .496   79.1   82.9    8.49280    7.43820   15.93100
Tigers            61   70   .517   76.9   85.1    2.22880    2.31440    4.54320
Royals            58   74   .446   71.0   91.0     .00650     .00730     .01380

Average wins by position in AL west:  83.8 81.4 78.9 65.3 62.2
AL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Rangers           66   66   .535   81.7   80.3   37.61810   12.38560   50.00370
Astros            65   66   .549   81.6   80.4   36.20310   12.68140   48.88450
Mariners          63   69   .573   80.8   81.2   26.17880   10.75890   36.93770
Angels            52   80   .428   64.0   98.0     .00000     .00000     .00000
Athletics         51   81   .437   63.5   98.5     .00000     .00000     .00000

Average wins by AL First Wild Card:  91.7
Average wins by AL Second Wild Card:  88.1
Average wins by AL Third Wild Card:  82.9

Average wins by position in NL East:  92.4 88.7 81.0 75.8 72.4
NL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Braves            76   55   .517   91.3   70.7   63.76940   34.75050   98.51990
Phillies          73   59   .574   89.7   72.3   36.16540   58.90170   95.06710
Marlins           67   65   .475   80.9   81.1     .06520    5.88010    5.94530
Nationals         62   71   .441   75.1   86.9     .00000     .02700     .02700
Mets              59   72   .480   73.4   88.6     .00000     .00420     .00420

Average wins by position in NL Central:  98.0 91.4 81.8 78.7 74.5
NL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Brewers           81   50   .562   97.8   64.2   92.17960    7.81930   99.99890
Cubs              76   56   .531   91.5   70.5    7.82040   90.81290   98.63330
Cardinals         66   66   .470   80.1   81.9     .00000    2.66420    2.66420
Pirates           64   69   .543   80.2   81.8     .00000    2.89560    2.89560
Reds              62   70   .474   74.7   87.3     .00000     .02040     .02040

Average wins by position in NL West:  99.8 86.9 83.2 67.1 63.0
NL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Dodgers           80   51   .620   99.8   62.2   99.95260     .04720   99.99980
Padres            71   61   .507   86.1   75.9     .04490   65.58510   65.63000
Diamondbacks      69   63   .507   84.0   78.0     .00250   30.59180   30.59430
Giants            53   78   .450   66.6   95.4     .00000     .00000     .00000
Rockies           50   81   .439   63.5   98.5     .00000     .00000     .00000

Average wins by NL First Wild Card:  91.9
Average wins by NL Second Wild Card:  88.9
Average wins by NL Third Wild Card:  86.4

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) is being driven entirely by the projections of player performance on our depth charts. The performances of every player on a team are combined to derive total team runs scored and allowed, which are averaged and normalized on a league basis, and used to calculate a won/lost record. The disadvantage of this approach is that the team's rating is entirely based on a projection of player performance. The advantage is that it can immediately respond to changes in the team's lineup, due to injury or trade. However, we still allow for uncertainty in the EWP by sampling a normal distribution centered on the EWP for each "seasonal" run. 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.