Thursday, June 14, 2018
Differences between wRC+, OPS+, and TAv
?Rob does a good job of finding examples that highlight the differences.
The first key one is the IBB. OPS, and by extension, OPS+, treats them identically to regular walks. wRC+ uses wOBA, and wOBA treats the IBB as neutral. TAv, I think, treats it somewhere between the two.
The next is that TAv uses, essentially, wOBA24, meaning the run expectancy by the 24 base out states, using the wOBA framework (then converted to batting average scale). I think that's what it does. So, if you wanted to see the biggest outliers between TAv and wRC+, then head over to Fangraphs and compare RE24 to wRAA.
Finally, as Rob points out, the park factors. Everyone uses their own, so, it's subject to the peculiarities of their park factor system
()
Comments
•
•
Linear_Weights
Recent comments
Older comments
Page 1 of 151 pages 1 2 3 > Last ›Complete Archive – By Category
Complete Archive – By Date
FORUM TOPICS
Jul 12 15:22 MarcelsApr 16 14:31 Pitch Count Estimators
Mar 12 16:30 Appendix to THE BOOK - THE GORY DETAILS
Jan 29 09:41 NFL Overtime Idea
Jan 22 14:48 Weighting Years for NFL Player Projections
Jan 21 09:18 positional runs in pythagenpat
Oct 20 15:57 DRS: FG vs. BB-Ref
Apr 12 09:43 What if baseball was like survivor? You are eliminated ...
Nov 24 09:57 Win Attribution to offense, pitching, and fielding at the game level (prototype method)
Jul 13 10:20 How to watch great past games without spoilers