Trevor Williams
Trevor Williams
27-Year-Old PitcherSP
Pittsburgh Pirates
2019 Fantasy Outlook
Williams provided the most confounding success story of the 2018 season. During a nine-start run from July to early September (54.2 innings), Williams posted an incredible 0.66 ERA and 1.06 WHIP. He achieved those marks despite just a 34:17 K:BB over that stretch. It was a microcosm of his season as a whole; while Williams obviously wasn't that successful over the course of the full year, he still finished with great ratios despite an utter lack of dominance. Williams barely cracked 90 mph on average with his fastball, which he threw 70% of the time, and induced swinging strikes at a career-low 7.9% clip. So how on Earth did he do it? And is it sustainable? In short: by inducing a lot of manageable, playable contact, and no. His opponents' 85.6 mph average exit velocity was among the lowest in baseball, but without the other numbers in the underlying profile, there's simply not much to get excited about. Don't pay for last year's numbers. Read Past Outlooks
RANKSFrom Preseason
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$Signed a one-year contract with the Pirates in March of 2019.
Yields two more home runs
PPittsburgh Pirates
September 29, 2019
Williams (7-9) allowed two runs on five hits with two walks and five strikeouts across seven innings while taking the loss against the Reds on Sunday.
ANALYSIS
Although it led to just two runs, Williams tossed up two more long balls Sunday, giving him a career-high 27 homers allowed this season. He yielded just 15 a year ago, which is why his ERA was more than 2.00 runs better in 2018. Williams started experiencing problems giving up homers when he returned from an injury in the middle of June, which immediately hurt his ERA. He finishes the season 7-9 with a disappointing 5.38 ERA, 1.41 WHIP and 113 strikeouts in 145.2 innings.
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Pitching Appearances Breakdown
Average Pitch Count
90
Last 10 Games
84
Last 5 Games
87
How many pitches does Trevor Williams 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 Trevor Williams 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
 
 
-15%
BAA vs RHP
2019
 
 
-26%
BAA vs RHP
2018
 
 
-3%
BAA vs LHP
2017
 
 
-21%
BAA vs RHP
BAA Batters K BB H 2B 3B HR
Since 2017vs Left .278 931 132 72 233 44 5 23
Since 2017vs Right .236 1048 224 79 220 59 5 33
2019vs Left .335 272 34 23 80 20 2 10
2019vs Right .247 364 79 21 82 20 3 17
2018vs Left .228 351 46 27 72 8 2 8
2018vs Right .234 350 80 28 74 25 1 7
2017vs Left .286 308 52 22 81 16 1 5
2017vs Right .225 334 65 30 64 14 1 9
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2017
 
 
-16%
ERA at Home
2019
 
 
-5%
ERA on Road
2018
 
 
-16%
ERA at Home
2017
 
 
-30%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2017Home 3.79 1.23 249.2 14 13 0 6.6 2.4 1.1
Since 2017Away 4.52 1.37 217.0 14 15 0 7.1 3.5 1.1
2019Home 5.54 1.43 66.2 3 4 0 6.5 2.4 1.8
2019Away 5.24 1.41 79.0 4 5 0 7.4 3.0 1.6
2018Home 2.86 1.13 94.1 8 6 0 6.6 2.3 0.9
2018Away 3.42 1.23 76.1 6 4 0 6.7 3.7 0.7
2017Home 3.45 1.17 88.2 3 3 0 6.8 2.4 0.8
2017Away 4.96 1.51 61.2 4 6 0 7.3 4.1 0.9
More Splits View More Split Stats
Stat Review
How does Trevor Williams 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
2.57
 
K/9
7.0
 
BB/9
2.7
 
HR/9
1.7
 
Fastball
91.3 mph
 
ERA
5.38
 
WHIP
1.41
 
BABIP
.312
 
GB/FB
0.99
 
Left On Base
67.2%
 
Exit Velocity
87.9 mph
 
Barrels/BBE
8.0%
 
Spin Rate
2095 rpm
 
Balls Hit 95+ MPH
35.9%
 
Swinging Strike
10.7%
 
Advanced Pitching Stats
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Defensive Stats
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Recent RotoWire Articles Featuring Trevor Williams
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22 days ago
With the big pitching names set to work on a pitch count, Sasha Yodashkin thinks Eduardo Rodriguez should have no problem notching his 20th win versus the Orioles.
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29 days ago
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29 days ago
Randal Grichuk has dominated the Yankees this year and Sasha Yodashkin says that run should continue today.
Weekly Pitcher Rankings: Subject to Change
30 days ago
Todd Zola ranks the starting pitching for the final week of the season, which is always tricky. Gerrit Cole is scheduled for two starts, but will he make both?
DraftKings MLB: Sunday Picks
36 days ago
Edwin Jackson has looked horrendous this season, which is why Mike Barner is picking a trio of Orioles' bats to punish the Tigers' starter.
Past Fantasy Outlooks
2018
2017
2016
2015
Williams settled in as a back-end starter for the Pirates last season, providing an innings-eating option every fifth day. For those who were careful to use him as a home streamer, Williams returned plenty of value with good ratios at PNC Park (3.45 ERA, 1.17 WHIP) despite a very limited ability to induce whiffs. Away from Pittsburgh, his ERA was more than a run-and-a-half higher (4.96), but it's interesting to note that his ability to keep the ball in the park did not change much in more hitter-friendly parks. Looking forward, Williams should have an inside track to begin the year back in the Bucs' rotation. In order to stay there and to remain effective, he'll need to improve his changeup, as opposing hitters hit .328 with a .547 slugging percentage against that offering last season, and ideally, improve his walk rate as well, as there isn't much in his current arsenal that suggests a spike in strikeouts is on the horizon barring the addition of a new pitch or an increase in velocity.
Williams' postgame embrace with his dad following his first appearance (and win) was one of the more emotional scenes in baseball last year. The 25-year-old started in 19 of his 20 Triple-A games, going 9-6 with a 2.53 ERA and 1.20 WHIP in 110.1 innings. A 74:30 K:BB serves as a reminder he'll probably never be a big strikeout guy. For the Pirates, Williams fell off after his debut. He gave up 11 earned runs, 16 hits and four walks in 9.2 innings, striking out four. Based off his strong Triple-A showing and the fact he served as informal trade compensation when Miami hired away pitching guru Jim Benedict from Pittsburgh, Williams will likely receive ample opportunities to prove his worth as a serviceable innings-eater for the Bucs.
As a sinkerballer with the body to eat innings, there is more pitchability than stuff in Williams’ profile, but he still has a good enough repertoire to succeed at the back of a big league rotation. The 23-year-old righty has a solid four-pitch mix but has yet to showcase above average command in the upper levels of the minors. Williams posted a 4.00 ERA, 1.38 WHIP, and a 88:36 K:BB over 117 innings at Double-A Jacksonville before earning a late-season promotion to Triple-A New Orleans where he made three solid starts. He was traded to the Pirates in the offseason -- a move that might lessen his chances of joining a big league rotation this summer, given the disparity of pitching depth between the two organizations. Look for the Pirates to use Williams as rotation depth in the second half of 2016.
A second-round selection in 2013, Williams totaled 144 innings pitched across two minor league levels, reaching Double-A for the final three starts of the season. It was another positive step for Williams, who does not come as highly regarded as many of the other prospect arms in the Marlins' system, as he continues put the results on tape. The right hander went 8-7 with a 3.13 ERA and 1.35 WHIP over 26 starts during the 2014 season, his first full season of professional ball. Though Williams is fairly hittable and has posted mediocre strikeout totals so far, he shows solid command and consistent effort. Williams should slot into the rotation at Double-A Jacksonville out of spring training as he continues to progress up the ladder.
More Fantasy News
Yields two more homers
PPittsburgh Pirates
September 22, 2019
Williams (7-8) allowed two runs on three hits with two walks and six strikeouts across five innings while taking a loss against the Brewers on Sunday.
ANALYSIS
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Hit hard in loss
PPittsburgh Pirates
September 15, 2019
Williams (7-7) gave up seven runs on six hits and three walks while striking out none through 2.1 innings to take the loss against the Cubs on Sunday.
ANALYSIS
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No-decision against Giants
PPittsburgh Pirates
September 9, 2019
Williams didn't factor into the decision against the Giants on Monday, giving up four earned runs on eight hits over 5.2 innings, striking out six and walking three as the Pirates eventually won 6-4.
ANALYSIS
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Quality start in no-decision
PPittsburgh Pirates
September 4, 2019
Williams didn't factor into the decision in Wednesday's 6-5 win over the Marlins, giving up three runs (two earned) on seven hits and a walk over six innings while striking out six.
ANALYSIS
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Moves to 7-6
PPittsburgh Pirates
August 29, 2019
Williams (7-6) picked up the win against the Rockies on Thursday, giving up three earned runs on seven hits over seven innings, striking out six and walking none in the Pirates' 11-8 victory.
ANALYSIS
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