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 7 07:52:17 AM EDT 2025


Average wins by position in AL East:  94.1 90.5 87.1 80.8 70.8
AL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Blue Jays         68   48   .556   92.6   69.4   57.80510   38.86420   96.66930        1.84810   2.47710
Red Sox           64   52   .560   89.2   72.8   19.35100   64.98540   84.33640       -4.36430   9.65520
Yankees           61   54   .596   89.6   72.4   22.50290   64.20760   86.71050        2.72160  -7.75230
Rays              57   59   .532   81.0   81.0     .34100   10.41380   10.75480        1.28540 -10.77170
Orioles           52   63   .423   70.9   91.1     .00000     .01390     .01390         .00430  -0.05230

Average wins by position in AL Central:  91.4 83.7 80.1 75.9 62.0
AL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Tigers            66   50   .542   91.2   70.8   91.76960    3.61060   95.38020       -1.80740  -2.64760
Guardians         59   55   .464   81.0   81.0    2.99560    9.10650   12.10210        3.16800   6.81760
Royals            57   58   .510   81.8   80.2    4.79980   10.44790   15.24770        3.84290   2.00510
Twins             54   60   .483   77.1   84.9     .43500    1.49170    1.92670         .52940  -0.74710
White Sox         42   72   .419   62.0  100.0     .00000     .00000     .00000         .00000    .00000

Average wins by position in AL west:  91.0 87.3 83.4 75.8 70.4
AL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Astros            64   51   .527   88.9   73.1   47.40240   34.17930   81.58170       -3.31200  -3.83089
Mariners          62   53   .545   88.2   73.8   42.08060   35.31660   77.39720        2.69240  16.66860
Rangers           60   56   .534   84.5   77.5   10.44360   26.98840   37.43200       -6.35210 -10.14910
Angels            55   60   .438   75.1   86.9     .07300     .36260     .43560       -0.23760  -1.63550
Athletics         50   66   .460   71.2   90.8     .00040     .01150     .01190       -0.01870  -0.03710

Average wins by AL Wild Card:  90.9 88.5 88.3

Average wins by position in NL East:  92.2 86.7 79.7 71.3 63.6
NL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Phillies          65   49   .547   91.4   70.6   78.72120   15.30830   94.02950       -1.24990   3.89000
Mets              63   52   .524   87.1   74.9   20.24160   47.12210   67.36370       -5.71420 -21.02460
Marlins           56   57   .478   79.8   82.2    1.03510    5.30960    6.34470        2.12550   3.23750
Braves            47   66   .487   71.2   90.8     .00210     .01970     .02180       -0.01990  -0.06250
Nationals         45   68   .394   63.9   98.1     .00000     .00000     .00000         .00000  -0.00050

Average wins by position in NL Central:  97.6 93.0 84.1 79.3 70.8
NL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Brewers           70   44   .555   96.1   65.9   60.78410   38.70100   99.48510         .37050   3.99880
Cubs              66   48   .581   94.5   67.5   38.98540   59.80930   98.79470         .89390  -0.07110
Reds              60   55   .507   83.0   79.0     .19940   22.23740   22.43680       -4.90630  -0.84320
Cardinals         58   58   .492   80.3   81.7     .03110    6.92700    6.95810        2.16880  -1.26630
Pirates           49   66   .467   70.9   91.1     .00000     .00850     .00850       -0.00500  -0.12190

Average wins by position in NL West:  93.7 89.2 82.7 77.3 44.4
NL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs      1D Change 7D Change
Dodgers           66   49   .536   92.2   69.8   61.92710   34.18570   96.11280       -0.69350    .95190
Padres            64   51   .536   90.4   71.6   36.60540   53.63140   90.23680        4.00260   5.32110
Giants            58   57   .495   82.3   79.7    1.40980   14.92600   16.33580        3.54690   7.29790
Diamondbacks      54   61   .500   78.0   84.0     .05770    1.81400    1.87170       -0.51940  -1.30710
Rockies           30   84   .309   44.4  117.6     .00000     .00000     .00000         .00000    .00000

Average wins by NL Wild Card:  93.5 89.6 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) 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.