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 Sun Mar 29 07:53:15 AM EDT 2026


Average wins by position in AL East:  96.4 89.9 85.0 80.0 73.4
AL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Yankees            3    0   .559   90.2   71.8   38.91370   34.43700   73.35070
Blue Jays          2    0   .525   83.7   78.3   14.30180   30.12540   44.42720
Red Sox            1    1   .546   86.4   75.6   22.48640   34.77900   57.26540
Orioles            1    1   .537   85.0   77.0   17.79330   32.76930   50.56260
Rays               0    2   .509   79.4   82.6    6.50480   19.87300   26.37780

Average wins by position in AL Central:  92.4 84.5 78.2 71.8 62.1
AL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Tigers             2    1   .543   88.3   73.7   53.54420   15.76580   69.31000
Guardians          2    1   .474   76.9   85.1    9.42120   10.00560   19.42680
Twins              1    1   .472   75.9   86.1    7.93350    8.86020   16.79370
Royals             0    2   .523   83.7   78.3   28.52690   18.71800   47.24490
White Sox          0    2   .411   64.3   97.7     .57420     .74550    1.31970

Average wins by position in AL west:  97.5 87.8 81.1 74.2 65.6
AL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Angels             2    1   .435   68.8   93.2     .53080    2.92410    3.45490
Rangers            1    1   .520   83.1   78.9   12.40810   29.58020   41.98830
Mariners           1    2   .598   95.4   66.6   70.15770   18.98670   89.14440
Astros             1    2   .530   84.1   77.9   14.39380   32.20160   46.59540
Athletics          0    2   .478   74.9   87.1    2.50960   10.22860   12.73820

Average wins by AL First Wild Card:  92.3
Average wins by AL Second Wild Card:  88.6
Average wins by AL Third Wild Card:  86.0

Average wins by position in NL East:  95.9 88.3 82.0 75.1 66.8
NL East           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Mets               2    0   .560   91.1   70.9   48.69160   31.80430   80.49590
Braves             2    0   .523   84.9   77.1   20.15930   35.66940   55.82870
Marlins            2    0   .460   74.1   87.9    2.68560   11.12260   13.80820
Phillies           1    1   .541   86.8   75.2   27.12960   37.56160   64.69120
Nationals          1    1   .446   71.2   90.8    1.33390    6.50710    7.84100

Average wins by position in NL Central:  93.2 85.7 80.1 74.6 67.5
NL Central        W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Brewers            2    0   .516   83.8   78.2   25.69230   25.89340   51.58570
Cardinals          2    0   .449   72.6   89.4    3.41140    7.41510   10.82650
Cubs               1    1   .550   88.8   73.2   51.31530   22.05960   73.37490
Reds               1    1   .481   77.1   84.9    8.45130   14.67980   23.13110
Pirates            0    2   .496   78.7   83.3   11.12970   17.66980   28.79950

Average wins by position in NL West:  102.1 86.5 79.3 72.5 60.3
NL West           W    L    Pct3  Avg W  Avg L  Champions  Wild Card   Playoffs
Dodgers            3    0   .617  101.6   60.4   90.69480    7.36150   98.05630
Padres             1    2   .493   78.3   83.7    2.55230   23.95570   26.50800
Rockies            0    2   .395   61.5  100.5     .02930     .65490     .68420
Diamondbacks       0    3   .511   81.0   81.0    4.16540   33.63600   37.80140
Giants             0    3   .498   78.3   83.7    2.55820   24.00920   26.56740

Average wins by NL First Wild Card:  91.6
Average wins by NL Second Wild Card:  87.6
Average wins by NL Third Wild Card:  84.9

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.