Tanner Roark
Tanner Roark
33-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.
Yields three in loss
POakland Athletics
September 29, 2019
Roark (10-10) allowed three runs on seven hits and two walks over five innings Sunday, striking out five batters and taking the loss against Seattle.
ANALYSIS
Roark coughed up a two-run shot to Kyle Seager in the first inning, and Oakland's bats were silenced for most of the afternoon. The 32-year-old has allowed 17 runs over his last four starts, inflating his ERA from 3.86 to 4.35. It's Roark's third consecutive season with an ERA over 4.30 after his breakout 2016 campaign.
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Pitching Stats
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Pitching Appearances Breakdown
Average Pitch Count
97
Last 10 Games
98
Last 5 Games
96
How many pitches does Tanner Roark generally throw?
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
What part of the game does Tanner Roark generally pitch?
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2017
 
 
-11%
BAA vs RHP
2019
 
 
-9%
BAA vs RHP
2018
 
 
-2%
BAA vs RHP
2017
 
 
-21%
BAA vs RHP
BAA Batters K BB H 2B 3B HR
Since 2017vs Left .279 1125 228 101 279 52 6 42
Since 2017vs Right .248 1133 242 64 260 47 4 33
2019vs Left .289 358 76 31 91 18 2 15
2019vs Right .262 364 82 20 89 18 1 13
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
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2017
 
 
-16%
ERA on Road
2019
 
 
-5%
ERA at Home
2018
 
 
-31%
ERA on Road
2017
 
 
-15%
ERA on Road
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2017Home 4.83 1.36 266.1 14 21 0 8.4 2.6 1.5
Since 2017Away 4.07 1.31 260.2 18 15 0 7.6 3.0 1.1
2019Home 4.25 1.41 91.0 4 7 0 8.9 3.0 1.4
2019Away 4.48 1.39 74.1 6 3 0 8.2 2.5 1.7
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
More Splits View More Split Stats
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 2019 data (min 120 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.
  • BABIP
    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.
K/BB
3.10
 
K/9
8.6
 
BB/9
2.8
 
HR/9
1.5
 
Fastball
92.1 mph
 
ERA
4.35
 
WHIP
1.40
 
BABIP
.330
 
GB/FB
1.06
 
Left On Base
76.6%
 
Exit Velocity
88.9 mph
 
Barrels/BBE
8.1%
 
Spin Rate
2164 rpm
 
Balls Hit 95+ MPH
37.0%
 
Swinging Strike
8.8%
 
Advanced Pitching Stats
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Defensive Stats
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Recent RotoWire Articles Featuring Tanner Roark
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31 days ago
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Weekly Pitcher Rankings: Nationals, Astros Dominate Top-5
33 days ago
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Past Fantasy Outlooks
2018
2017
2016
2015
2014
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
Allows four homers in loss
POakland Athletics
September 22, 2019
Roark (10-9) allowed five runs on six hits and a walk over three innings Sunday, striking out one batter and taking the loss against Texas.
ANALYSIS
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No-decision against Royals
POakland Athletics
September 17, 2019
Roark didn't factor into the decision against the Royals on Monday, giving up four earned runs on seven hits over 4.2 innings, striking out eight and walking one as the Athletics fell 6-5.
ANALYSIS
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Grabs win despite three homers
POakland Athletics
September 11, 2019
Roark (10-8) picked up the win in Tuesday's 21-7 rout of the Astros, giving up five runs on eight hits -- including three home runs -- and a walk over 5.2 innings while striking out three.
ANALYSIS
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Strikes out six in win
POakland Athletics
September 4, 2019
Roark (9-8) gave up five hits and two walks while striking out six through 6.2 scoreless innings to earn the win over the Angels on Wednesday.
ANALYSIS
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Allows four runs in no-decision
POakland Athletics
August 28, 2019
Roark did not factor into the decision during Wednesday's loss to the Royals, surrendering four runs on five hits and a walk with four strikeouts across six innings.
ANALYSIS
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