Crude Playoff Odds -- 2018

These are very simple playoff odds, based on my crude rating system for teams using an equal mix of W%, EW% (based on R/RA), PW% (based on RC/RCA), and 69 games of .500. They account for home field advantage by assuming a .500 team wins 54.2% of home games (major league average 2006-2015). They assume that a team's inherent strength is constant from game-to-game. They do not generally account for any number of factors that you would actually want to account for if you were serious about this, including but not limited to injuries, the current construction of the team rather than the aggregate seasonal performance, pitching rotations, estimated true talent of the players, etc.

The CTRs that are fed in are:



Wilcard game odds (the least useful since the pitching matchups aren’t taken into account, and that matters most when there is just one game):



LDS:



LCS:



WS:



Because I set this spreadsheet up when home field advantage went to a particular league (as it has been for the entire history of the World Series prior to this year), all of the AL teams are listed as the home team. But the probabilities all consider which team would actually have the home field advantage in each matchup. Incidentally, the first tiebreaker after overall record is intra-divisional record, which if anything should favor the team with the worse record but would amusingly give Cleveland home field advantage in a series against Los Angeles or Colorado.

Putting it all together: