Postseason Odds

Playing the rest of the season a million times

by Clay Davenport

See the Forecast-adjusted version of this report.

Generated Thu Apr 17 07:51:46 AM EDT 2025


Average wins by position in AL East:  99.0 89.1 82.6 76.3 68.3
AL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Yankees           11    7   .582   95.6   66.4   62.90200   25.82080   88.72280        2.61610   9.89050
Blue Jays         11    8   .502   82.7   79.3   12.64900   35.99670   48.64570        3.82870  -1.63350
Red Sox           10   10   .517   83.7   78.3   14.38480   38.47130   52.85610        8.77790   5.19370
Rays               8   10   .489   77.6   84.4    5.89170   23.99750   29.88920       -3.32250  -7.03080
Orioles            7   10   .473   75.7   86.3    4.17250   19.56620   23.73870        3.61370  -7.60450

Average wins by position in AL Central:  92.5 82.4 75.8 69.5 61.3
AL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Tigers            10    8   .536   89.2   72.8   63.13010   13.04830   76.17840       -1.19680  -5.07160
Guardians          9    8   .464   77.2   84.8   15.49370   15.18590   30.67960       -7.32530   2.40290
Royals             8   11   .446   72.3   89.7    7.15730    8.55440   15.71170       -1.15940  -7.04500
Twins              7   12   .466   74.9   87.1   10.91940   12.27610   23.19550         .20390   4.84080
White Sox          4   13   .439   67.8   94.2    3.29950    4.83480    8.13430       -1.64080 -11.57970

Average wins by position in AL west:  93.1 85.8 80.3 74.7 67.1
AL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Rangers           11    7   .498   83.7   78.3   29.55680   23.70830   53.26510        4.07190  -2.64660
Angels             9    8   .489   80.7   81.3   20.27860   21.60190   41.88050       -7.59870  -0.70260
Mariners           9    9   .494   80.6   81.4   19.90000   21.27030   41.17030        4.89260  11.44470
Astros             8   10   .502   81.6   80.4   22.18550   22.82420   45.00970       -5.27570   7.23730
Athletics          8   10   .459   74.5   87.5    8.07910   12.84330   20.92240       -0.48560   2.30440

Average wins by AL Wild Card:  91.4 87.1 86.9

Average wins by position in NL East:  91.6 83.7 77.9 72.2 64.7
NL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Mets              11    7   .517   85.3   76.7   42.84470    9.74920   52.59390       -1.99380   3.91220
Phillies          10    8   .476   78.3   83.7   18.85230    7.62000   26.47230       -2.97440 -17.17940
Marlins            8    9   .473   76.3   85.7   13.39950    6.78540   20.18490       -1.84910  -1.57770
Nationals          7   11   .459   72.9   89.1    8.21380    4.12780   12.34160       -3.74050 -22.49570
Braves             5   13   .500   77.4   84.6   16.68970    6.97210   23.66180       -2.88420  -1.25400

Average wins by position in NL Central:  98.7 89.8 83.2 76.9 68.8
NL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Cubs              12    9   .580   94.1   67.9   53.69220   25.17190   78.86410       -0.48520  17.46680
Brewers           10    9   .494   79.5   82.5    7.63030   17.33290   24.96320        3.44500  -7.59780
Cardinals          9    9   .553   87.5   74.5   24.94490   29.99980   54.94470        5.25210  21.02350
Reds               9    9   .508   81.1   80.9   10.04550   20.23170   30.27720       -2.31380  -0.63430
Pirates            7   12   .487   75.4   86.6    3.68710   10.50850   14.19560        1.51830  -9.60380

Average wins by position in NL West:  102.3 94.0 87.2 79.2 61.8
NL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Padres            15    4   .565   95.1   66.9   39.84540   40.77200   80.61740        1.98590  22.41360
Dodgers           14    6   .506   84.6   77.4    9.71710   33.58820   43.30530       -4.45580 -23.59140
Giants            13    5   .551   92.3   69.7   28.71420   43.53040   72.24460        3.80250  19.93250
Diamondbacks      11    7   .553   90.1   71.9   21.65010   42.54300   64.19310        5.11270   6.25060
Rockies            3   15   .424   62.5   99.5     .07320    1.06710    1.14030       -0.41970  -7.06510

Average wins by NL Wild Card:  95.8 91.1 87.5

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) 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.