Your Potential 2018 Fly Ball Revolution Beneficiaries
It’s still way too early to be analyzing anything. Heck, after Tuesday’s games, the league leader in plate appearances sits at just 33! That said, batted ball type distribution does stabilize relatively quickly, compared to other metrics. So even though we’re still not even halfway toward our 80 balls in play stabilization point, it’s worth checking in on batter fly ball rates. Perhaps we’ll get an early indication of which hitters have joined the fly ball revolution and are poised for a home run surge.
I simply compared this year’s FB% to last year and sorted the difference in descending order. In order to avoid the ridiculously small samples (though admittedly, these are all tiny samples), I filtered for hitters with at least 20 at-bats. Here are the guys you care about that might very well be the subject of surprise home run spike articles sometime in the future.
| Name | 2018 FB% | 2017 FB% | Diff |
|---|---|---|---|
| Anthony Rendon | 65.00% | 47.20% | 17.80% |
| Marwin Gonzalez | 53.80% | 36.20% | 17.60% |
| Luis Valbuena | 64.70% | 47.30% | 17.40% |
| Nick Markakis | 44.40% | 29.20% | 15.20% |
| Joey Gallo | 68.80% | 54.20% | 14.60% |
| George Springer | 47.10% | 33.80% | 13.30% |
| Xander Bogaerts | 43.50% | 30.50% | 13.00% |
| Eduardo Nunez | 42.10% | 29.10% | 13.00% |
Anthony Rendon’s fly ball rate has risen two straight seasons already, pushing him up among the league leaders. So although he’s not a new member of the revolution, it’s possible he’s taking his membership to the extreme. If he settles in at a 50%+ fly ball rate, 30 homers are within reach. This is especially true because his career high HR/FB rate is just 12.3%. You have to feel like there’s ample room for growth.
So Marwin Gonzalez looks like a changed man…again. He’s now swinging and missing like never before and when he does manage to make contact, is hitting fly balls at an extreme rate. As soon as Yulieski Gurriel returns, he’ll be at risk of losing playing time, perhaps significantly. The non-Gurriel infielders aren’t going to get regular days off, George Springer ain’t sitting, Josh Reddick probably won’t either, so his best chance for playing time is in left field, where he’ll be battling less established, but still potentially solid, hitters.
Luis Valbuena falls into the same camp as Rendon as a guy who had been an extreme fly-baller, but is taking that tendency up another notch so far. Unlike Rendon, however, Valbuena has always been a fly ball guy, posting marks above 40% every season since 2013. With Shohei Ohtani truly doing his best Babe Ruth impression, I worry that Albert Pujols gets pushed to first base more frequently, costing Valbuena plate appearances.
Nick Markakis is the first guy on the list that truly looks like a surprise with a sustainable FB% spike. The others were generally high already, but Markakis has always been in the high 20% or low 30% range. Markakis has never been much of a home run hitter and hasn’t even posted an ISO above .129 since 2012. At 34, it’s possible he has decided to try adjusting to see if he could extend his career as an above average offensive player.
LOL Joey Gallo. You so silly. He had generally been in the low 50% range throughout his professional career, so extreme fly ball rates are nothing new here. Imagine if he posts a 60%+ mark all season? Say hello to an easy 50+ homers.
When you already possess near elite power like George Springer, hitting more fly balls could boost your offense to the top of the mountain. In his past three seasons, he hasn’t posted a FB% above 33.8%, so he was ripe for a FB% spike. If he could sustain some or most of this surge, he’ll approach 40 homers.
I’ve ratted on Xander Bogaerts a lot in recent years, but it’s all relative to his cost in fantasy leagues. I have nothing against him as a real baseball player! So far in the early going, his batted ball profile looks like his 2014, so there’s precedent here. His FB% has really jumped around, so it’s always a shot in the dark trying to predict what you’ll get from him.
From 2011 through 2013, Eduardo Nunez hit fly balls. Then he stopped, posting a mark above 30% just once since then. His appearance here looks the flukiest, as he has simply traded in line drives for fly balls. That will revert back to normal soon enough and he’ll be back to being the stolen base contributor for the occasional homer we all remember.
Mike Podhorzer is the founder of ProjectingX IQ, an advanced fantasy baseball analytics platform that transforms projection data and in-season performance signals into actionable intelligence. He is the 2015 Fantasy Sports Writers Association Baseball Writer of the Year and three-time Tout Wars champion. He is the author of the eBook Projecting X 2.0: How to Forecast Baseball Player Performance, which teaches you how to project players yourself. Follow Mike on X@MikePodhorzer and contact him via email.
What about DJ LeMahieu? From 20% to 37% (+17%)
Was below the 20 AB cutoff through Tuesday’s games, so missed the list. Some of the increase is due to a lack of line drives, but not all of it. He looks like a candidate.
How likely is it that Derek Fisher keeps the ever day left field job after Yuli comes back? I can’t be alone in thinking that he’s a much better player than Marwin.
I like Fisher, but the Astros truly have so much depth, that it’s hard to imagine just one player earning the vast majority of plate appearances.
Know Brandon Drury is under the cutoff but he’s raised his fly-ball by 17.3% and his line drives by 5.9%. Ground ball rate has plummeted. Interested if he can keep that up.
Wait, with Gallo, isn’t there a fundamental flaw here? I mean there is a point where you’re hitting too many fly balls right? Like at a certain point your launch angle is so high your not maximizing distance and/or sacrificing batted ball EV for launch angle?
It would just seem that you need to view those two stats together — EV (at least comparatively YoY) and Launch Angle — to ensure you’re trending the wrong direction EV.
I think your mixing up things – a higher fly ball rate doesn’t mean your launch angle isn’t ideal for homers. It just means you’re hitting more balls in the launch angle that gets classified as a fly ball.
Also, this article has nothing to do with a player’s overall offensive performance, like wOBA. It’s strictly home run potential. More fly balls = more homers, assuming the same HR/FB rate.
Sure, IF HR/FB stays constant. I’m just saying, at some point, you’re getting under the ball too much, and HR/FB drops because you’re hitting too man flyballs, right? Like that’s the piece that’s driving the HR/FB decline.
No, more fly balls doesn’t mean your fly ball launch angle has increased. If a ball is classified as a fly in the launch angle range of 25-40 degrees (just making that up), that just means the player is hitting more balls in that range. It’s possible those extra flies are at less optimal angles for homers, but it’s not necessarily true. And you wouldn’t know it by just looking at the change in fly ball rate.
Of course its possible for an extreme fly ball hitter to become even more extreme without killing the quality of contact, but particularly in Gallo’s case (a guy who strikes out almost 40% of the time), it seems unlikely that he would do so without reducing the quality of the contact by hitting the fly balls he hits even higher. This of course requires an analysis of launch angles to be sure, but I find it totally implausible that Gallo has increased his fly balls by getting more precise on the bottom of the ball (which is the only way he would increase his fly balls without diminishing the quality of those fly balls) unless we see it accompanied by a reduction in strikeouts and a reduction in popups. He has always hit low on the ball, which is a good thing, but he’s probably just hitting even lower on it, which is not a good thing.
I guess the idea would be that in extreme cases an increase in FB% could lead to a decrease in barrels/FB?
Gallo’s barrel/FB rate does appear to be down so far this season per statcast (38 barrels on 96 FBs in 2017 vs 1 for 8 in 2018), so that could be something to watch.
Fozzz, yup exactly! Maybe too small of a sample, but exactly what I was thinking, qualify FB% by EV.
Well of course barrels/FB could increase or decrease, regardless of fly ball rate.
And seriously, a sample of 8 fly balls? If he hit just one more barrel, his barrel rate skyrockets from 12.5% to 25%. I acknowledged that FB% was still in small sample territory, but barrels rate right now is 100% meaningless.
True. I didn’t mean to imply that we have a meaningful sample for his barrel/fb rate this season, just that he has started off low and it would be interesting to see how he performs in that regard at such an extreme fly ball rate.
Also, do you have a good idea when barrel/fb stabilizes? 100 fly balls?
No idea how to calculation stabilization rate so sadly, I don’t know. I’d guess it stabilizes much more quickly than HR/FB though.
So if Markakis sustains this FB rate is 20 homers possible? 80/20/90/.280 looks would be mighty useful for me this season.
Depends on his HR/FB rate. His FB% is about 50% higher than last year, so you’d just project 50% more homers, given the same HR/FB and strikeout rates. That gets us to just 12.
Markakis is interesting.
I know it’s incremental in comparison, but I was noticing this morning that 4 Giants have positive increases in their average launch angle this year. Of those 4, Panik and Posey have increased their flyball percentage. While it hasn’t been double digits, I still think the changes the new hitting coaches (who came from the Astros) have made in SF is something interesting to keep an eye on as the season progresses.