Williams Jerez
Williams Jerez
27-Year-Old PitcherRP
San Francisco Giants
2019 Fantasy Outlook
There was no outlook written for Williams Jerez in 2019. Check out the latest news below for more on his current fantasy value.
$Traded to the Giants in March of 2019.
Dispatched to Triple-A
PSan Francisco Giants  AAA
May 30, 2019
The Giants optioned Jerez to Triple-A Sacramento on Thursday, Amy Gutierrez of NBC Sports Bay Area reports.
He'll surrender his spot on the active roster to Tyler Beede, who was recalled from Triple-A ahead of his scheduled start Thursday against the Marlins. Jerez's stay with the big club lasted just one day and didn't include a relief appearance.
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Pitching Stats
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Minor League Game Log
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Left/Right Pitching Splits
Since 2017
No Stats
No Stats
BAA Batters K BB H 2B 3B HR
Since 2017vs Left .292 29 6 5 7 1 0 2
Since 2017vs Right .238 47 9 5 10 2 0 1
2019vs Left .000 2 0 1 0 0 0 0
2019vs Right .000 3 0 1 0 0 0 0
2018vs Left .304 27 6 4 7 1 0 2
2018vs Right .250 44 9 4 10 2 0 1
2017vs Left 0 0 0 0 0 0 0 0
2017vs Right 0 0 0 0 0 0 0 0
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Home/Away Pitching Splits
Since 2017
ERA on Road
No Stats
ERA on Road
No Stats
Since 2017Home 7.20 1.90 10.0 0 0 0 8.1 5.4 1.8
Since 2017Away 3.00 1.33 6.0 0 0 0 9.0 6.0 1.5
2019Home 0 0 0 0 0 0 0 0 0
2019Away 0.00 2.00 1.0 0 0 0 0.0 18.0 0.0
2018Home 7.20 1.90 10.0 0 0 0 8.1 5.4 1.8
2018Away 3.60 1.20 5.0 0 0 0 10.8 3.6 1.8
2017Home 0 0 0 0 0 0 0 0 0
2017Away 0 0 0 0 0 0 0 0 0
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Stat Review
How does Williams Jerez compare to other relievers?
This section compares his stats with all relief pitcher seasons from the previous three seasons (minimum 30 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 20 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.
93.9 mph
Left On Base
Exit Velocity
91.1 mph
Spin Rate
2225 rpm
Balls Hit 95+ MPH
Swinging Strike
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Giants Depth Chart
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Recent RotoWire Articles Featuring Williams Jerez
MLB Barometer: Trade Deadline Review
350 days ago
Derek VanRiper takes a deep dive into the fallout from this year's trade deadline, breaking down each transaction with an eye toward the rest of the season.
Past Fantasy Outlooks
Jerez impressed enough in 2015 -- his first full year of pitching after flaming out as a hitter -- to earn a spot on Boston's 40-man roster. He flashed potential in the lower levels of the minors and the organization was eager for him to gain more experience as a reliever at Double-A Portland in 2016. There was some thought that he could eventually move up to Triple-A Pawtucket, where he would be on the precipice of MLB, but he didn't develop as hoped. The 24-year-old left-hander maintained an ability to miss bats (9.0 K/9), but his command wavered (30 walks in 65 innings). He was outrighted off the 40-man roster this offseason and should simply serve as organizational depth going forward.
Jerez, a converted outfielder, earned himself placement on the 40-man roster after he turned in a successful season in 2015, his first full year as a reliever. He thrived at the lower levels (Low-A Greenville, High-A Salem) before getting into 22 games (37 innings) at Double-A Portland. His fastball sits in the low-to-mid 90s with some sink. The command will come and go, but he's essentially around the zone. His best secondary offering is a slider while the changeup lags behind that. He'll start 2016 at Portland to gain more confidence and experience. If all goes well, he'll get the call up to Triple-A Pawtucket where he'll be an injury away from Boston.
Jerez, a second-round pick out high school in the 2011 draft, suffered a hand injury in 2012 that ate into his development time. At present, he's a center-fielder with good instincts defensively, but his 6-4 frame could fill out in the coming years. The reduced playing time in 2012 hurt him offensively, where Jerez is below average in terms of pitch recognition and plate approach. If he's placed at Low-A Greenville, there may be some struggles initially. He'll be challenged as a hitter, but it will be a chance for him to adjust to better competition.
The Red Sox feel Jerez has five-tool potential, but at 19, he's very raw and needs to polish his skills. Things have come easy for Jerez, but he'll be dealing with an advanced level of competition and he needs to work on his swing and ability to hit secondary offerings. Jerez will start his career with Boston in center field, but he there's potential for his body to grow and he may find a home at a corner outfield spot. The Red Sox feel his defense is good enough to translate from center. If he can develop his swing in spring training, he could open the year at Low-A Greenville. Otherwise, he'll hang back in extended spring training and head to Short-Season Lowell in June.
More Fantasy News
Summoned to majors
PSan Francisco Giants  AAA
May 29, 2019
Jerez was recalled from Triple-A Sacramento on Wednesday, Kerry Crowley of The San Jose Mercury News reports.
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Returns to minors
PSan Francisco Giants  AAA
May 8, 2019
Jerez was optioned to Triple-A Sacramento on Wednesday, Kerry Crowley of The San Jose Mercury News reports.
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Heads to San Francisco
PSan Francisco Giants  AAA
March 26, 2019
The Angels traded Jerez to the Giants on Tuesday in exchange for pitcher Chris Stratton.
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Sent to minors
PLos Angeles Angels  AAA
March 15, 2019
Jerez was optioned to Triple-A Salt Lake on Friday.
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Returns to big leagues
PLos Angeles Angels  AAA
September 7, 2018
Jerez was recalled from Triple-A Salt Lake ahead of Friday's game against the White Sox.
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