Tanner Roark
Tanner Roark
32-Year-Old PitcherSP
Oakland Athletics
2019 Fantasy Outlook
Roark posted sub-3.00 ERAs in 2014 and 2016, but his HR/9 has increased the past two years, and in 2018 his groundball rate was a career-low 40.7% -- bad news for a sinkerballer. Roark stayed afloat for stretches by riding his surprisingly effective slider, and before the All-Star break, he looked like he fixed his mechanics and revived that sinker, though those improvements didn't stick late in the year. The right-hander limped to an 8.4% swinging-strike rate in 2018, and his already-weak fastball velocity dipped again. As he enters his age-32 season, Roark is increasingly dependent on limiting walks and good fortune from the BABIP gods. With a ton of job security following a December trade to the Reds, Roark still warrants some consideration in the later rounds, but the lack of strikeouts means a lot is left up to chance from start to start. Read Past Outlooks
RANKSFrom Preseason
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$Signed a one-year, $10 million contract with the Reds in January of 2019, avoiding arbitration. Traded to the Athletics in July of 2019.
Holds Yankees to two runs in win
POakland Athletics
August 22, 2019
Roark (2-1) took the win against the Yankees on Thursday, hurling 6.1 innings and giving up two runs on seven hits and no walks while striking out seven.
Roark registered his third straight quality start in the victory, limiting New York to single runs in the fifth and seventh innings. He tossed 60 of 95 pitches for strikes and whiffed seven hitters for the second time in his last three outings. The 32-year-old posted a mediocre 4.24 ERA with the Reds this season but has fared much better since joining Oakland at the trade deadline, winning two of four starts while compiling a 2.63 ERA and 23:5 K:BB in 24 innings. He'll next head to Kansas City to face the Royals on Wednesday.
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Pitching Stats
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Left/Right Pitching Splits
Since 2017
BAA Batters K BB H 2B 3B HR
Since 2017vs Left .282 1047 206 96 262 50 5 37
Since 2017vs Right .242 1071 237 61 239 41 4 27
2019vs Left .302 280 54 26 74 16 1 10
2019vs Right .241 302 77 17 68 12 1 7
2018vs Left .265 369 78 29 88 16 2 12
2018vs Right .260 391 68 21 93 16 1 12
2017vs Left .284 398 74 41 100 18 2 15
2017vs Right .223 378 92 23 78 13 2 8
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Home/Away Pitching Splits
Since 2017
ERA on Road
ERA on Road
ERA on Road
ERA on Road
Since 2017Home 4.79 1.35 252.0 13 20 0 8.4 2.6 1.4
Since 2017Away 3.91 1.30 244.0 17 14 0 7.7 3.1 0.9
2019Home 3.99 1.38 76.2 3 6 0 8.8 3.1 1.1
2019Away 3.90 1.37 57.2 5 2 0 8.7 2.7 1.2
2018Home 5.24 1.34 80.2 4 8 0 7.8 2.3 1.7
2018Away 3.61 1.23 99.2 5 7 0 6.9 2.6 0.8
2017Home 5.04 1.33 94.2 6 6 0 8.6 2.6 1.4
2017Away 4.26 1.34 86.2 7 5 0 7.9 3.8 0.8
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Stat Review
How does Tanner Roark compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against this season's data (min 70 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
92.2 mph
Left On Base
Exit Velocity
88.9 mph
Spin Rate
2175 rpm
Balls Hit 95+ MPH
Swinging Strike
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Defensive Stats
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Past Fantasy Outlooks
During his breakout 2016 season, Roark compensated for shaky command with a high rate of soft contact. In fact, he ranked third among starting pitchers in soft contact percentage (23.1). That number tumbled to 16.7 percent in 2017, and in turn his BABIP returned to league average and his ERA climbed nearly two full runs. Roark also lost confidence in putting away batters early in the season, perhaps due to his spring preparation being corrupted by the World Baseball Classic. Deeper into 2017, the right-hander gradually regained trust in his two-seam fastball, which led to a return of the weak batted balls that carry his game and allowed him to post a career-best 10.1 swinging-strike rate and 9.6 second-half K/9. The 31-year-old has five useful-to-great pitches, hurls for one of the National League's best teams and will probably be discounted a little more than he should coming off the disappointing year, so this a decent buying opportunity.
After a rough season bouncing between the rotation and bullpen in 2015, Roark returned to a full-time starting gig last year and picked up right where he left off in 2014, posting a career-best 20.1 percent strikeout rate and again significantly outperforming his FIP (3.79). The secret to his success is not an overpowering fastball but a deep five-pitch arsenal anchored by a plus sinker. In fact, the 30-year-old right-hander was one of just four pitchers last season to get positive value from all five of his pitches. The other three names on that list (Madison Bumgarner, Jake Arrieta and Johnny Cueto) sit among the game's elite. Fatigue may have been an issue late in the season, though, as Roark topped 200 innings for the first time, and his 10 percent walk rate in the second half was a far cry from the 7.4 percent mark he posted in the first half. He's never going to be mistaken for an ace, but he will help fantasy owners cautious enough not to treat him like one. View him as a solid depth piece for a mixed pitching staff, but brace for a bit of negative correction in 2017.
The decision last offseason by Nationals GM Mike Rizzo to spend $200 million on an apparent luxury item like Max Scherzer shut Roark out of the rotation despite his impressive 2014, but injuries to Doug Fister and Stephen Strasburg still allowed him to make 12 starts as he bounced between a starting spot, long and short relief throughout the year. The constant role changes didn't do the 29-year-old any favors, though, and Roark's numbers were well off his breakthrough performance. The main culprit was a HR/FB rate that nearly doubled from the year before, soaring from seven percent to 15.5 percent, and as a pitcher who relies more on command and control of a four-pitch repertoire than on overpowering raw stuff, there's no guarantee the increase is going to simply fade away. The departures of Fister and Jordan Zimmermann in free agency put Roark back in the rotation, but don't expect another sub-3.00 ERA from him.
After a breakout season at Triple-A and impressive effectiveness as a swingman for the Nationals at the end of 2013, Roark didn't miss a beat in locking down the fifth starter role for the club last year. He finished with a 2.85 ERA and 1.09 WHIP, numbers which seem baffling given his relatively pedestrian raw stuff. Right-handers with low-90s fastballs and a merely OK assortment of breaking pitches don't impress the scouts much, but his excellent control (1.8 BB/9 so far in his big league career) and the late movement on his pitches prevent hitters from doing much damage off him despite his lack of big-time strikeout numbers. The league might yet figure him out, although his second half splits don't show any sign of it, and his .270 BABIP will probably rise to some degree, but given the defense behind him and the offense supporting him, Roark isn't necessarily a lock to regress the way it might seem at first glance. The Max Scherzer signing bumps him from the Nationals' rotation, but Roark's just a trade or injury away from being back in the fifth starter role.
Roark wasn't on anybody's prospect radar coming into 2013, even going unclaimed in the Rule 5 draft the previous season, but after putting up a superficially solid line at Triple-A he got the call to the majors when injuries wrecked the Nationals' staff down the stretch. Roark promptly shocked the world with a 1.51 ERA. While he doesn't have the strikeout rate of an elite pitcher he does limit walks and home runs, both very useful traits, but the Nats' rotation seems full up heading into the spring so Roark will likely have to head back to Triple-A to prove his September performance wasn't entirely a fluke.
More Fantasy News
Quality start in no-decision
POakland Athletics
August 16, 2019
Roark allowed two runs on six hits and three walks over six innings Friday. He struck out three and did not factor in the decision in a 3-2 extra-innings win over the Astros.
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Loss despite quality start
POakland Athletics
August 11, 2019
Roark (1-1) took the loss against the White Sox on Saturday, allowing three runs (two earned) on six hits and no walks while recording seven strikeouts over 6.2 innings.
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Grabs win in team debut
POakland Athletics
August 5, 2019
Roark (1-0) was credited with the win in a victory over the Cardinals on Sunday, allowing one run on four hits, two walks and a hit batsman over five innings while also recording six strikeouts.
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Making team debut
POakland Athletics
August 4, 2019
Roark will make his Athletics debut in his start Sunday against the Cardinals.
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Heading to Oakland
POakland Athletics
July 31, 2019
Roark was traded from Cincinnati to Oakland in exchange for Jameson Hannah on Wednesday, Ken Rosenthal of The Athletic reports.
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