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 Jun 26 07:53:14 AM EDT 2026


Average wins by position in AL East:  94.4 86.4 81.3 77.7 73.5
AL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Yankees           48   32   .562   93.8   68.2   85.27410   14.08140   99.35550
Rays              45   33   .501   85.7   76.3   12.64610   68.59610   81.24220
Blue Jays         39   42   .503   78.6   83.4     .87880   27.62400   28.50280
Orioles           38   44   .513   78.6   83.4     .84280   26.76800   27.61080
Red Sox           33   46   .530   76.5   85.5     .35820   15.48390   15.84210

Average wins by position in AL Central:  84.7 80.4 77.2 74.2 70.1
AL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Guardians         42   39   .485   82.2   79.8   51.42220   11.78700   63.20920
White Sox         41   38   .469   79.6   82.4   27.18950   13.01270   40.20220
Twins             38   44   .473   75.5   86.5    7.86750    5.68770   13.55520
Tigers            34   47   .529   76.7   85.3   11.15800    8.11870   19.27670
Royals            34   48   .482   72.5   89.5    2.36280    2.08390    4.44670

Average wins by position in AL west:  88.0 83.3 79.8 76.1 69.0
AL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Mariners          41   41   .572   86.3   75.7   62.46260   23.23770   85.70030
Astros            40   43   .527   81.6   80.4   18.25850   34.12110   52.37960
Rangers           39   42   .504   79.7   82.3   10.63190   25.92080   36.55270
Athletics         39   42   .501   79.0   83.0    8.48950   22.73760   31.22710
Angels            34   48   .459   69.5   92.5     .15750     .73940     .89690

Average wins by AL First Wild Card:  87.2
Average wins by AL Second Wild Card:  83.9
Average wins by AL Third Wild Card:  82.1

Average wins by position in NL East:  92.7 87.1 81.2 77.2 72.9
NL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Braves            48   31   .524   91.1   70.9   65.02190   28.75250   93.77440
Phillies          45   36   .544   88.0   74.0   32.00330   50.91130   82.91460
Marlins           42   39   .469   79.3   82.7    1.86440   16.92320   18.78760
Nationals         41   41   .452   76.8   85.2     .58390    7.46870    8.05260
Mets              34   47   .533   76.0   86.0     .52650    5.56320    6.08970

Average wins by position in NL Central:  96.7 87.2 83.2 79.5 74.1
NL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Brewers           49   29   .572   96.4   65.6   91.76630    7.57660   99.34290
Cubs              44   37   .508   84.3   77.7    4.18250   52.74420   56.92670
Cardinals         42   36   .488   82.1   79.9    1.85550   36.57640   38.43190
Pirates           41   40   .526   82.5   79.5    2.10480   39.15950   41.26430
Reds              37   42   .480   75.3   86.7     .09090    5.09630    5.18720

Average wins by position in NL West:  101.6 83.3 78.2 73.6 65.7
NL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Dodgers           52   29   .611  101.6   60.4   99.73520     .24810   99.98330
Padres            42   37   .444   77.9   84.1     .05280   12.13320   12.18600
Diamondbacks      41   39   .495   81.4   80.6     .20390   32.30760   32.51150
Giants            33   47   .514   75.3   86.7     .00810    4.51330    4.52140
Rockies           32   49   .424   66.1   95.9     .00000     .02590     .02590

Average wins by NL First Wild Card:  89.4
Average wins by NL Second Wild Card:  86.4
Average wins by NL Third Wild Card:  84.4

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.