Joe Orr Road Rod wrote:
Juice's Lecture Notes wrote:
..how else are you going to display something as "below" or "a fraction of" something else? When working with runs instead of percentages, the numbers still show Quintana holding teams further below their average when than do teams holding the Sox below theirs. A percentage merely gives clearer context.
If "Poor Quintana" lost the game and he held his opponent to less than 3 runs that means the other guy allowed one or zero, right? So in the majority of cases when the difference in average run scoring of the two teams is less than one full run, didn't the other guy hold the Sox further under their average? How could it be any other way? The opponent held the Sox approximately either three or four runs under their average while Quintana held the other team to either two or three runs and a fraction under theirs. You know why you used the percentages.
Why are you comparing runs given up in a start to team runs per game? Unless every starting pitcher goes the distance, this seems like an asinine comparison.
My figures for Quintana were using his prorated scoring
rate per game, so as to compare better with actual runs scored per game, because to do so otherwise is to compare 6 innings of offensive chances to an average derived over 9 inning games.
Juice's Lecture Notes wrote:
"QOPP R/9" is "Quintana Opponents' Runs per 9 Innings", and "ROPP R/G" is "Real Opponents Runs per Game". The bottom in bold is an average of all teams (not including the inter-league split at the top), and as you can see, Quintana is able to limit opponent scoring to about 65% of their averages when extrapolated out to 9 innings. Without extrapolation, Quintana holds opponents to an average that is 47% of their regular marks.
The White Sox average 3.39 R/9 when Quintana is on the hill, and their average is 3.99 R/G. So, all told, the opposing pitchers are limiting White Sox output to 85% of their average.
The problem is that the Sox' offense is so bad, that even limiting it's run-scoring rate by 85% makes leaving the game after 5, 6, or 7 innings and change with a lead an even more daunting task if you give up even a single run. And that is why "Wins" is such an awful metric.
Juice's Lecture Notes wrote:
Since he became a full-time starter, Quintana has limited opponent scoring to a rate of 3.64 runs per 9. In that same time frame, Quintana is 7th-worst among qualified starters with an average RS/9 of 3.81. Since 2012, the average AL R/G mark has been 4.37, and the Sox have averaged 4.04 R/G.
Quintana has held "the League" (because I'm not going through and calculating a R/G average for only Quintana's opponents in the last 5 years, the AL's 5-year average will get us close enough) to an average of 83% of their scoring, the Sox have been held to 94% of theirs when Quintana is on the hill.
When you remove the 2012 season, the differences become even more glaring. Quintana holds "the League" to 3.56 R/9, or 81% of their scoring, and the Sox average 3.89 R/G, or are held to 96% of their average scoring by Quintana's collective opponents.
Since 2013, Quintana is 28th in the MLB among all qualified starters in limiting run scoring rate (R/9), but is 82nd in W/L%. To say that has more to do with how he "competes" than with how poorly his offense has performed for multiple years is beyond silly.
Its all rate-based to ensure that apples are being compared to apples instead of 6-inning bowling balls.