Postseason Odds

Playing the rest of the season a million times

by Clay Davenport

See the Forecast-adjusted version of this report.

Generated Wed May 20 07:52:22 AM EDT 2026


Average wins by position in AL East:  101.1 92.8 81.3 74.6 67.2
AL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Rays              32   15   .553   96.0   66.0   44.69040   52.50250   97.19290         .44830   1.92370
Yankees           30   19   .590   97.3   64.7   53.79360   44.32370   98.11730         .25980  -0.28950
Blue Jays         21   27   .486   76.5   85.5     .66440   25.16010   25.82450       -2.09310   6.45400
Red Sox           21   27   .494   76.9   85.1     .77980   25.99220   26.77200        6.18510  14.08650
Orioles           21   28   .440   70.3   91.7     .07180    6.88800    6.95980       -1.31110  -0.06820

Average wins by position in AL Central:  89.0 82.9 78.5 74.3 68.7
AL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Guardians         28   22   .501   84.9   77.1   48.48190   20.62590   69.10780         .43111  16.63170
White Sox         25   23   .482   80.1   81.9   22.26710   21.50070   43.76780        1.99000  12.34850
Twins             22   27   .482   76.3   85.7   10.33500   14.96320   25.29820       -1.64430   3.91870
Royals            20   29   .477   74.5   87.5    6.15830   11.69330   17.85160       -6.49190 -19.52320
Tigers            20   29   .501   77.5   84.5   12.75770   17.27990   30.03760       -0.61810 -14.07430

Average wins by position in AL west:  88.2 81.5 76.2 70.7 64.0
AL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Athletics         24   24   .467   78.1   83.9   17.54260   17.21890   34.76150        3.57980  -3.84190
Rangers           23   25   .530   85.1   76.9   56.38310   16.02300   72.40610        8.32339   4.04140
Mariners          23   27   .496   79.2   82.8   21.14330   19.21960   40.36290       -5.66980 -10.09660
Astros            20   30   .431   68.2   93.8    1.67050    2.53330    4.20380       -0.16030    .30640
Angels            17   32   .464   70.0   92.0    3.26050    4.07570    7.33620       -3.22890 -11.81720

Average wins by AL Wild Card:  93.1 85.6 85.3

Average wins by position in NL East:  100.2 85.9 80.1 75.2 69.0
NL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Braves            33   16   .590   99.9   62.1   92.81090    4.82690   97.63780         .73110  -0.22290
Phillies          25   24   .475   77.8   84.2    1.50060   14.17890   15.67950       -4.77970   3.20390
Nationals         24   25   .480   78.3   83.7    1.82850   15.36340   17.19190        1.26300 -11.52500
Marlins           22   27   .523   80.8   81.2    3.27400   23.86600   27.14000       -2.36540    .70700
Mets              21   27   .472   73.5   88.5     .58600    5.32860    5.91460       -0.69000   2.61580

Average wins by position in NL Central:  98.6 91.6 85.7 79.8 70.9
NL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Cubs              29   20   .559   92.1   69.9   34.93720   47.54690   82.48410       -2.45530  -6.10480
Brewers           28   18   .573   94.5   67.5   50.17010   38.47410   88.64420        3.89910  13.11951
Cardinals         28   19   .500   84.8   77.2    9.12420   38.13480   47.25900        5.01100   2.98630
Reds              25   24   .436   72.4   89.6     .30970    4.38500    4.69470        1.08010  -1.91060
Pirates           24   24   .527   82.7   79.3    5.45880   30.94440   36.40320       -3.50420 -28.27240

Average wins by position in NL West:  99.8 87.2 79.9 72.0 63.2
NL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Dodgers           30   19   .608   99.1   62.9   88.13770    8.87640   97.01410         .46870   5.64550
Padres            29   19   .485   83.5   78.5    6.15140   34.20990   40.36130       -0.31250   9.24140
Diamondbacks      24   23   .508   82.5   79.5    5.48000   30.24630   35.72630        2.66990  14.45890
Giants            20   29   .456   71.7   90.3     .20810    3.22090    3.42900       -0.60850  -2.72870
Rockies           19   30   .417   65.2   96.8     .02280     .39750     .42030       -0.40730  -1.21390

Average wins by NL Wild Card:  93.2 89.3 86.2

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.