Thursday I compared five projection systems with their projections for weighted on base average. Today I’m looking at two different pitching categories, runs allowed per 9 innings (RA9) and WHIP, walks plus hits per innings pitched. Tom Tango kindly highlighted my post yesterday, but suggested that one of my charts was useless, because it did… Continue reading 2013 Projection Systems Review: RA9 and WHIP
Month: January 2014
2013 Projection Systems Review: wOBA
In each of the past two years, I’ve compared different baseball projections systems by looking at aggregate errors. In 2013, I had access to these projection systems: CAIRO – from S B of the Replacement Level Yankees Weblog. Marcel – the basic projection model from Tom Tango, coauthor of The Book. This year I’m using Marcel numbers generated by… Continue reading 2013 Projection Systems Review: wOBA
The Case of the Missing Votes – Solved!
Murray Chass wonders why so many players who received Hall of Fame votes last year saw their vote totals drop this year: How does a writer put an ‘x’ in the box next to a player’s name last year, silently saying he belongs in the Hall, and then this year declaring with an empty box this… Continue reading The Case of the Missing Votes – Solved!
Comparing Replacement Level for Starters and Relievers
There was a discussion at Tom Tango’s blog which led to an interesting question: what’s the difference in effectiveness between a replacement-level starter and a replacement-level reliever? To answer this, you’d need to have some way of estimating replacement level for starters and relievers. Since I have a database with boxscore data since 2010, I… Continue reading Comparing Replacement Level for Starters and Relievers
More on Instant Running HOF Playing
Yesterday I talked about simulating Tom Tango’s idea for doing instant runoff voting for the Hall of Fame, and using prior year public ballot data to simulate his ranked ballots. In the comments in his blog, he asked about assuming all voters draw the line at 4 players (so long as they have at least… Continue reading More on Instant Running HOF Playing
Instant Runoff Voting for HOF
Tom Tango proposed a form of instant runoff voting for the Hall of Fame: he suggested that voters be forced to rank 10 players on their ballot, but add a line at the point where they thought players deserved induction. So if I think only 3 players get my vote (under the old system), I’d… Continue reading Instant Runoff Voting for HOF