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 Fri Aug 28 07:53:16 AM EDT 2026


Average wins by position in AL East:  94.7 91.3 87.9 79.9 76.6
AL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Rays              79   54   .541   94.0   68.0   70.33730   29.66130   99.99860
Yankees           75   58   .554   91.4   70.6   24.29440   75.65730   99.95170
Red Sox           73   60   .551   88.6   73.4    5.36830   93.53450   98.90280
Orioles           65   69   .482   78.3   83.7     .00000    6.90430    6.90430
Blue Jays         65   70   .492   78.2   83.8     .00000    6.88000    6.88000

Average wins by position in AL Central:  85.3 82.4 78.9 75.9 71.5
AL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
White Sox         70   63   .487   84.0   78.0   54.07400   23.79950   77.87350
Guardians         68   66   .528   83.4   78.6   42.11220   28.86750   70.97970
Twins             64   70   .496   78.0   84.0    2.69050    4.51240    7.20290
Tigers            62   71   .517   76.9   85.1    1.11730    2.12320    3.24050
Royals            60   75   .446   71.7   90.3     .00600     .00920     .01520

Average wins by position in AL west:  83.6 81.2 78.8 65.5 62.2
AL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Astros            67   67   .549   82.2   79.8   49.80840    9.47070   59.27910
Rangers           66   68   .535   80.7   81.3   24.25260    9.53210   33.78470
Mariners          64   70   .573   80.7   81.3   25.93900    9.04800   34.98700
Athletics         53   81   .437   64.6   97.4     .00000     .00000     .00000
Angels            52   82   .428   63.1   98.9     .00000     .00000     .00000

Average wins by AL First Wild Card:  91.3
Average wins by AL Second Wild Card:  88.0
Average wins by AL Third Wild Card:  83.1

Average wins by position in NL East:  93.5 89.3 81.0 75.3 72.0
NL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Braves            79   55   .517   93.0   69.0   77.09070   22.63450   99.72520
Phillies          74   60   .574   89.8   72.2   22.89310   72.54260   95.43570
Marlins           68   66   .475   81.0   81.0     .01620    5.41010    5.42630
Nationals         63   73   .441   74.4   87.6     .00000     .00690     .00690
Mets              60   74   .480   73.0   89.0     .00000     .00060     .00060

Average wins by position in NL Central:  98.3 90.5 81.5 78.4 74.5
NL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Brewers           83   51   .562   98.2   63.8   96.32410    3.67550   99.99960
Cubs              76   58   .531   90.6   71.4    3.67590   93.82220   97.49810
Cardinals         67   68   .470   79.5   82.5     .00000    1.20890    1.20890
Pirates           65   70   .543   80.2   81.8     .00000    2.04510    2.04510
Reds              63   71   .474   74.8   87.2     .00000     .01400     .01400

Average wins by position in NL West:  98.1 87.0 83.6 67.5 63.7
NL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Dodgers           80   54   .620   98.1   63.9   99.87440     .12510   99.99950
Padres            72   62   .507   86.1   75.9     .11290   63.81000   63.92290
Diamondbacks      71   64   .507   84.5   77.5     .01270   34.70450   34.71720
Giants            55   79   .450   67.1   94.9     .00000     .00000     .00000
Rockies           52   82   .439   64.1   97.9     .00000     .00000     .00000

Average wins by NL First Wild Card:  91.5
Average wins by NL Second Wild Card:  89.0
Average wins by NL Third Wild Card:  86.5

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.