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Earlier today, in Part I of the series, I published a chart of 38 pitchers who had a difference of 0.50 or greater between their FIP and xFIP at the All-Star break and their 2nd half ERAs. Here I want to go into more detail rather than just giving a raw score for the two metrics.

In rating the two systems, I considered the metrics to recommend keeping a pitcher if at the All-Star break they were at 3.50 or lower, to listen to a trade if they were between 3.51 and 4.00, to actively look to sell the player if they were between 4.01 and 4.50 and to either sell or cut a pitcher if they were above 4.51.

Of course, we also have to consider what the pitcher’s actual ERA was at the break, too. A pitcher could still be a sell candidate if one of the metrics was significantly higher than his ERA. For these extreme cases, I considered a difference between 50-75 points to be a “listen” candidate, while above 75 to be a “sell high” guy.

Felipe Paulino – pitched in just 5.2 innings after the break. Officially a win for xFIP, but one we should probably dismiss due to a lack of playing time.

Francisco Liriano – His second half ERA was better than his first half mark, but both metrics thought he was outstanding before the All-Star break. This is a clear win for xFIP.

Anibal Sanchez – His 2nd half ERA (3.44) was a near-perfect match for his first half FIP (3.46).

Clay Buchholz – Both systems thought Buchholz was not nearly as good as he was in the first half. FIP had his as a keep while xFIP said he was an active sell. Since Buchholz did even better in the second half of the season than the first, this was a clear victory for FIP.

Josh Johnson – Both systems had Johnson as a keeper, but xFIP did a better job predicting his 3.50 post All-Star break mark.

Daisuke Matsuzaka – After allowing 4 HR in 71 IP in the first half, Matsuzaka served up 9 HR in 82.2 IP after the break. Big win for xFIP.

Johan Santana – His 3.00 ERA in the second half almost identical to his first half mark of 2.98. xFIP had Santana as a cut, so an easy win for FIP.

Jason Vargas – Eight of his 14 starts after the break came on the road and he allowed eight of his 10 second half HR away from Safeco. Big win for xFIP.

Justin Verlander – In the last three years, Verlander has posted an ERA over 5.50 in the month of April. He was terrific from May 1st through the end of the season again in 2010. Easy win for FIP.

Barry Zito – A lousy second half of the season made Zito a spectator for the Giants in the post-season. xFIP did an outstanding job predicting Zito’s collapse.

Ubaldo Jimenez – Just like with Zito, xFIP was just about perfect predicting Jimenez in the second half.

Tom Gorzelanny – Both systems saw Gorzelanny as a pretty good pitcher, but xFIP came closer to his second-half collapse.

John Danks – Again, the crystal ball for xFIP was right on target for Danks.

Tommy Hanson – In both seasons in the majors, Hanson has outperformed his xFIP. He turned it up a notch in the second half of 2010, thanks as much to his .233 BABIP as his 7 HR in 100.1 IP.

Matt Cain – Another pitcher with a history of outperforming his peripherals, Cain beat his FIP by nearly a run and his xFIP by nearly two runs in the second half of 2010.

Clayton Kershaw – Just as good in the second half of the season as he was in the first.

Cliff Lee – Many people wanted to eliminate Lee from this study last year, as he went from a pitcher’s park to a hitter’s park. But Lee outpitched his xFIP after the break in 2009. No such luck for Lee this year while following a similar story line of moving to a tougher park for pitchers.

C.J. Wilson – Like Kershaw, he was remarkable consistent between halves and ended up as a win for FIP.

Livan Hernandez – Those of us who kept predicting the bottom to fall out for Hernandez in 2010 are still waiting. Meanwhile, his second half ERA of 4.02 was a perfect match for his first half FIP.

Doug Fister – I imagine even the staunchest FIP supporters were shopping Fister every chance they could.

Fausto Carmona – After back-to-back seasons with a BB/9 over 5.00, Carmona allowed just 29 BB in 94.0 IP after the break last year. That had more to do with it than HR rate (10 HR in 94 IP) for why FIP was a clear winner.

Gavin Floyd – Fantasy owners did not know start from start what to expect from Floyd, but xFIP did a nice job of predicting his second half ERA.

Mark Buehrle – Like Wilson and Kershaw, Buehrle was a model of consistency with his ERA between halves this year. However, I worry about his K/9 rate and would be shocked if he was on any of my teams next year.

Brandon Morrow – With the Blue Jays out of the race, they decided to shut down a healthy Morrow after his first September start, which limited him to 46.1 IP after the break. A polar opposite to Buehrle, Morrow posted a 10.95 K/9, up from 8.14 a season ago.

Johnny Cueto – Cueto’s second half ERA was in the range predicted by his first half FIP and xFIP. But it was just 0.05 away from his FIP.

John Lackey – His second half ERA of 3.97 was a nice match for his 3.89 career mark but I doubt that makes too many Red Sox fans happy about his season and the team’s remaining obligation to him.

Kevin Correia – The first player on our list to have a big discrepancy between his FIP and xFIP due to a high HR rate, Correia did not show much regression in the second half of the year. Those who thought he would rebound, especially considering his home park, were disappointed. Correia allowed 13 HR in 82.1 IP in Petco this year.

Cole Hamels – Just like in 2009, one pitcher from the high HR rate side completely turned things around to become one of the best pitchers in the second half. Hopefully, Hamels has more luck in 2011 than 2009’s entry did. Rich Harden had a 5.58 ERA in 20 games with the Rangers this year after having a tremendous post-break performance (2.55 ERA) in 2009.

Nick Blackburn – Both systems would have advised cutting Blackburn, who responded with a 3.94 ERA in the second half, as he showed a big across-the-board improvement, including a microscopic 1.83 BB/9.

Kevin Millwood – Most of the players with a high HR/FB rate come back as not worth the risk by both systems. But xFIP said Millwood was significantly better than he showed in the first half and did an excellent job projecting his post-break ERA.

Jeff Karstens – An sore shoulder led to just one appearance in September. I regret the pain suffered by Mr. Karstens but it’s probably just as well that it played out that way.

Zach Duke – Hard to believe he made the All-Star team in 2009. Since then he is 11-23 with a 5.52 ERA.

James Shields – Both systems predicted a big bounce-back performance in the second half by Shields but that never materialized. He continued to give up HR by the basket, saw his K/BB ratio drop by over a full point and saw his BABIP increase to .362 after the break.

Brian Bannister – Limited to 25.2 IP in the second half due to rotator cuff tendinitis.

Randy Wolf – Both systems saw Wolf as waiver wire fodder but he had a 2.67 ERA in his final 13 starts, which was right after I placed him on waivers in a dynasty league.

Doug Davis – Elbow tendinitis kept Davis from pitching after the All-Star break.

Ricky Nolasco – FIP was nearly perfect with its Nolasco forecast, a marked departure in recent history, as he has generally underperformed his peripherals the past two seasons. Of course, Nolasco pitched just 47 innings after the break due to knee surgery.

Ian Kennedy – Neither system thought much of Kennedy going into the break but xFIP had a brighter outlook. Meanwhile, Kennedy put it altogether after the All-Star game, with Quality Starts in seven of his last nine outings. He finally started pitching well in his home park. In his last three games in Chase Field, Kennedy allowed 4 ER (0 HR) in 19 IP.

*****

When I started this comparison in 2009, my belief was that you would be just as well off using either system. After last year, there was a definite raw advantage for xFIP but now with two years worth of data, the two systems are basically even. Overall, there have been 72 pitchers who’ve had a 0.50 or greater difference between their FIP and xFIP at the All-Star break. Here’s how they did if you used their first half FIP or xFIP to project their second half ERA:

xFIP – 37
FIP – 34
Push – 1

Both systems have strengths and weaknesses. Generally speaking, xFIP does a better job with non-elite pitchers with low HR rates while FIP does a better job with elite hurlers. So, if a Tom Gorzelanny is cruising along with a sub-7.0 HR/FB rate, it appears you should look to sell high. But if it’s Justin Verlander, perhaps you should hold onto him.

We know that over the long haul that xFIP is the better metric to use for most pitchers. The issue here is that for one season (or one partial season) there may not be enough time for regression to fully kick in. Let’s look at Tim Lincecum. In the first half of 2009, he had a 3.9 HR/FB rate. In the second half of the season he had a 7.5 HR/9. This year he had a 9.9 HR/FB ratio. He has been regressing towards a normal HR/FB rate since the first half of 2009. But it did not all come in the same season.

Readers have suggested using first half ERA, or a mid-point between first half FIP and xFIP or an average of all three to see which one best predicted second half ERA. I think these are worthwhile suggestions and perhaps ones that we can use in the future (going back retroactively, too) as our sample size increases. We can also eliminate pitchers who did not pitch substantial innings and look for other trends and anomalies as our population gets bigger.

This started with a claim by my friend and colleague Derek Carty that FIP was basically useless for fantasy purposes with other metrics like xFIP available. Right now it appears FIP is making a case not to be tossed into the trash can by fantasy players.

In 2009, I did a column at the All-Star break to see if FIP or xFIP would be more helpful for fantasy players in making trades. This year I did the same thing. You can see the results below

Should Fantasy Owners Use FIP?
FIP Challenge Results Part I
FIP Challenge Results Part II
FIP Challenge 2010

Here is the table from the 2010 article, along with an additional column, the pitcher’s ERA in the second half of the season.

There are 38 pitchers in the above chart. On a raw scale, the two systems were almost identical, with the FIP metric did a better job of predicting 2nd half ERA in 20 cases while xFIP did better 17 times. Furthermore, FIP did a better job of forecasting 14 of the 26 players with low HR/FB rates and both systems got five of the 11 pitchers (Davis being a wash) with high HR/FB rates.

In 2009, xFIP did better on a raw scale, as it did a better job predicting 20 of the 34 pitchers in the sample.

Similar to 2009, most of the pitchers fell outside the range predicted by FIP and xFIP. For example, Liriano’s FIP was 2.18 while his xFIP was 2.97. But he had a 3.31 second half ERA. Only seven of the 37 players listed above had a second half ERA between their first half FIP and xFIP. The two systems were close on this, too, with FIP being better on four of these seven pitchers. In 2009, 28 of the 34 pitchers had second half ERAs outside the range of their first half FIP and xFIP numbers.

Later today I will post a breakdown of all 38 pitchers in this survey.

After he got off to a 9-1 start with a 0.88 ERA, I asked readers to predict Ubaldo Jimenez for the rest of the season.

Jimenez ended up with 10 W, 153 Ks, a 3.83 ERA and a 1.264 WHIP. We had two people who came up with pretty good predictions for Jimenez. They were:

Elgato7664: 11 W, 138 Ks, 3.78 ERA, 1.24 WHIP
Toffer Peak 10 W, 130 Ks, 3.50 ERA, 1.28 WHIP

Vote in the comments for which one you think did better.

And I would be remiss if I did not mention that RoS ZiPS projected Jimenez for 11 wins and a 3.84 ERA, which was just about perfect. If only Jimenez had picked up a win instead of a no-decision on his last game of the year, when he pitched eight shutout innings, Dan Szymborski would have hit one out of the park.

Here are 10 fantasy hitters who really helped their teams in the month of September/October, without any position factor considered. Hitters 4-9 could probably be arranged in any order you like, although the top three hitters seem set.

10. Victor Martinez .330-7-25-17-0

These are great numbers for anyone and they are spectacular for a catcher. Martinez is a free agent following this season and it will be interesting to see how many years a club feels comfortable giving him. Fantasy-wise, he is likely to move up from last year’s 48 ADP on ESPN.

9. Jayson Werth .300-9-22-23-4

A free agent at the end of the year, Werth did everything in his power to become one of the top players available on the open market. The Phillies have top prospect Domonic Brown ready to step in for Werth but it will be strange to see him on another team next Spring.

8. Andrew McCutchen .324-4-16-22-5

Coming into the 2010 season, many fantasy players wondered if McCutchen could be a consistent HR threat. While he will never be confused as a bopper, he seems very capable of putting up a 20-HR, 40-SB season in 2011.

7. Chase Utley .306-5-24-21-7

After suffering a torn ligament in his thumb that required surgery, Utley came back quicker than many people expected. He missed just six weeks of action and after a couple of weeks to play himself back in shape, Utley responded with production that fantasy leaguers have come to expect. Now the question remains if he is still a first-round pick or if age and injury concerns drop him lower.

6. Carl Crawford .360-4-19-16-6

Another free agent, Crawford did everything fantasy owners hoped he would do and finished the year as one of the Top 10 fantasy hitters, again. The big question for fantasy players is if Crawford moves to a new team, will he get more SB chances? With an 82 percent success ratio last season, owners would love to see him get even more opportunities than the 57 he had in 2010.

5. Mike Aviles .333-6-14-20-7

In the final month of the season, Aviles hit 6 of his 8 HR and had 7 of his 14 SB for the season. After going undrafted in many 12-team mixed leagues this year, Aviles undoubtedly will be a hot target for fantasy league players in 2011.

4. Drew Stubbs .316-7-18-19-6

With the Reds making the playoffs, Stubbs will be introduced to the wider baseball audience for the first time. Fantasy league players are already aware of the just-turned 26-year-old, who saved his best for the final month of the season.

3. Shin-Soo Choo .340-7-27-19-7

How’s this for consistency – last year Choo had a .300-20-86-87-21 line and this year it was .300-22-90-81-22 line. The only problem with Choo is that he has a two-year obligation to the South Korea military hanging over his head. Choo will be representing his country in the upcoming Asian games and if South Korea wins the Gold Medal, he will likely have the requirement waved. But what if they don’t finish first and Choo goes through with his duty? Is there any chance he could return to be an MLB-quality hitter after sitting out two of his late-prime years?

2. Carlos Gonzalez .378-5-26-24-6

Without a doubt, Gonzalez is this year’s fantasy MVP. He had a preseason ADP of 131.1 according to ESPN but finished as the top-rated player in fantasy, with a $43 12-team mixed value, according to Last Player Picked. Gonzalez had a terrific final month of the year, but it wasn’t quite good enough to be the best.

1. Troy Tulowitzki .303-15-40-30-2

In the last three years, Tulowitzki has played 101, 151 and 122 games. No fantasy player questions his talent, but how soon are you ready to pull the trigger on a player who has missed roughly 1/3 of the season in two of the past three years? And should we be even a tiny bit worried about the new chain of command in regards to the baseballs at Coors Field? Tulowitzki had a 1.034 OPS at home this year and an .863 mark at home.

Honorable Mention – Albert Pujols, Mike Stanton, Corey Hart, Alex Rodriguez, Matt Holliday and Mark Ellis

Here is the last-minute look at the two-start pitchers for Week 26. First the starters who you may be on the fence about putting into your lineup:

Mark Buehrle – He has lost back-to-back starts and in his last six games Buehrle is 0-3 with a 5.92 ERA. He has two home starts this week but Buehrle has not been very good at the Cell, with a 4.95 ERA. Put the veteran on your bench this week.

Mike Pelfrey – Citi Field has been very, very good to Pelfrey this season. In road parks, he is 5-6 with a 4.95 ERA. But in his home park, Pelfrey is 10-3 with a 2.87 ERA. In his last five home starts he is 4-1 with a 1.73 ERA. In his last five road starts Pelfrey is 1-3 with a 4.76 ERA. He has two home starts this week so get him in your lineup.

Jonathan Sanchez – In his last seven games, Sanchez is 3-1 with a 1.80 ERA. During that stretch, he has allowed 17 BB in 45 IP, compared to a 4.29 BB/9 ratio for the entire season. Sanchez faces division opponents Arizona and San Diego this week. He has pitched well against those two teams, with a combined 2.40 ERA in seven games. Get Sanchez in your lineup this week.

C.J. Wilson – Although he has lost his last two decisions, Wilson has been pitching just as well down the stretch as he has most of the season. In his last eight games he is 6-2 with a 2.75 ERA, with 53 Ks in 52.1 IP. Wilson has two home starts this season and while he has a slightly higher ERA in Arlington, he has a 10-2 record in his home park. Make sure Wilson is in your lineup.

Carlos Zambrano – In his last start, Zambrano pitched six shutout innings but came away with a no-decision, which ended a five-start winning streak. Since returning to the rotation, Zambrano is 6-0 with a 1.42 ERA in nine games. His walk rate in this stretch (33 BB in 57 IP) is troubling, but Zambrano has survived thanks to allowing just 1 HR in 57 IP. This week he faces San Diego and Houston. The Astros are last in the NL with 405 walks, nearly 200 behind the league-leading Braves. Houston is also last in the league in HR (105), while San Diego ranks 12th in the 16-team league. Look for Zambrano’s strong pitching to continue and get him active.

Other scheduled two-start pitchers in Week 26 are listed below. Please remember that these are projected pitchers and changes can and will happen during the week.

Halladay, Jimenez, F. Hernandez, Price, Lee, Buchholz, Haren, E. Santana, Scherzer, Latos, Hanson, W. Rodriguez, E. Jackson, Lackey, B. Anderson, Lilly, Burnett, A. Sanchez, Davis, Slowey, Niese, Volquez, Braden, Matusz, Minor, Galarraga, Stauffer, Carrasco, Sanabia, Francis, Bush, Lohse, Millwood, Drabek, Davies, R. Lopez, Rzepczynski, Pauley, O’Sullivan, Burres, Morton.

Now I want to provide some accountability and check in and see how previous recommendations turned out. There needs to be a two-week lag, since last week’s pitchers have not completed their second start yet. So here are Week 24 pitchers and how they fared.

Dickey – Advised to start. W, 3.00 ERA, 4 Ks, 1.33 WHIP (2 starts)
Enright – Advised to start. 14.85 ERA, K, 2.855 WHIP (2)
Garland – Advised to sit. W, 3.86 ERA, 10 Ks, 0.857 WHIP (2)
Hudson – Advised to start. W, 0.63 ERA, 14 Ks, 0.698 WHIP (2)
Narveson – Advised to start. 5.91 ERA, 8 Ks, 1.500 WHIP (2)