Blake Treinen
Blake Treinen
30-Year-Old PitcherRP
Oakland Athletics
2019 Fantasy Outlook
Treinen dug in as the Athletics' closer in 2018 and ended up as one of the most valuable relievers in fantasy. His 18.0 swinging-strike percentage ranked third among qualified relievers. He molded a cutter to conquer lefty batters, completing the missing piece of his skill set. Still, it's impossible to bank on him returning as much earned value in 2019; nine wins enhanced his 2018 value, he had an 85.9 left-on-base percentage and a .230 opponents BABIP. The latter two can fluctuate greatly given relievers' small sample sizes. However, even if he gives back some of that, Treinen should find a soft landing. He has a standout sinker, his control has improved greatly and he posted the fourth-lowest barrels-per-PA rate in the majors (min. 150 batted-ball events). After a dominant season in which he built up a long leash in the role, Treinen has a case to be the first closer off the board in 2019 drafts. Read Past Outlooks
RANKSFrom Preseason
Add To Watchlist
$Signed a one-year, $6.4 million contract with the Athletics in February of 2019 after winning arbitration hearing.
Secures ninth save
POakland Athletics
May 21, 2019
Treinen recorded two strikeouts during the ninth inning to earn the save Tuesday at Cleveland. He did not allow a baserunner.
Treinen allowed a solo homer when he notched the save Sunday but rebounded with a scoreless, 13-pitch outing against the Indians. The 30-year-old has a 2.70 ERA, 1.20 WHIP and 25:11 K:BB over 23.1 innings and has converted 9-of-11 save opportunities.
Read More News
Pitching Stats
Loading Pitching Stats...
MLB Game Log
Calculate Stats Over Time
Just click on any two dates.
Yahoo DFS
Loading Pitching Game Log...
Minor League Game Log
Calculate Stats Over Time
Just click on any two dates.
Loading Minor League Pitching Game Log...
Left/Right Pitching Splits
Since 2017
BAA Batters K BB H 2B 3B HR
Since 2017vs Left .238 355 90 27 76 12 1 7
Since 2017vs Right .197 386 110 31 69 11 1 3
2019vs Left .205 51 11 6 9 2 0 1
2019vs Right .233 50 15 6 10 1 0 1
2018vs Left .192 154 42 6 28 3 0 1
2018vs Right .124 161 58 15 18 3 0 1
2017vs Left .302 150 37 15 39 7 1 5
2017vs Right .252 175 37 10 41 7 1 1
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2017
ERA at Home
ERA at Home
ERA at Home
ERA at Home
Since 2017Home 1.87 1.04 101.0 11 4 30 9.4 2.8 0.3
Since 2017Away 2.95 1.24 79.1 3 6 33 10.7 3.1 0.8
2019Home 0.57 0.96 15.2 2 0 4 9.2 3.4 0.0
2019Away 6.23 1.85 8.2 0 2 5 10.4 6.2 2.1
2018Home 0.63 0.88 43.0 6 0 18 10.0 2.5 0.0
2018Away 0.96 0.78 37.1 3 2 20 12.5 2.2 0.5
2017Home 3.61 1.23 42.1 3 4 8 8.9 2.8 0.6
2017Away 4.32 1.59 33.1 0 2 8 8.6 3.2 0.8
More Splits View More Split Stats
Stat Review
How does Blake Treinen 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.
97.2 mph
Left On Base
Exit Velocity
88.1 mph
Spin Rate
2374 rpm
Balls Hit 95+ MPH
Swinging Strike
Advanced Pitching Stats
Loading Advanced Pitching Stats...
Defensive Stats
Loading MLB Defensive Stats...
Stats Vs Today's Lineup
Want more matchup stats?
Loading Matchup Stats...
Athletics Depth Chart
Our full team depth charts are reserved for RotoWire subscribers.
Subscribe Now
Recent RotoWire Articles Featuring Blake Treinen
The Z Files: Oh, What a Relief It... Isn't?
22 days ago
Todd Zola takes another look at the value of high-strikeout middle relievers, such as the Mets' Seth Lugo, in the current run-scoring environment.
Top 350 Composite Rankings
64 days ago
Max Scherzer has climbed up to third in RotoWire's composite rankings. Check out all of our changes in this week's Roundtable Rankings.
Mound Musings: AL West Draft Day Targets
65 days ago
Brad Johnson completes deep dive into each divisions this week with a look at the American League West, where in Seattle, Felix Hernandez might be in the twilight of his career.
Oak's Corner: Closers and Fades
70 days ago
Scott Jenstad is back for another season and this week he’s discussing his thoughts on the closer market as well as his top draft fades, including Boston’s Andrew Benintendi.
Top 350 Composite Rankings
71 days ago
Vladimir Guerrero's oblique injury could further delay his arrival to Toronto. How much does he fall in the latest installment of the RotoWire Roundtable?
Past Fantasy Outlooks
Treinen was the Nationals' first choice to close, but he absorbed a 7.11 ERA and a 2.53 WHIP through his first eight games and then spent several months in irrelevant fantasy roles until Washington shipped him to the Athletics. For his new club, he rattled off a 2.13 ERA with 42 strikeouts in 38 innings while converting 13 of 16 save chances. At season's end, he'd increased his swinging-strike rate from 10.5 percent in 2016 to 13.1 percent His sinker, emerging plus-slider and serviceable four-seam fastball gained velocity befitting a stopper. The right-hander should be ready for spring training following October surgery to remove a cyst from his middle pitching finger. It's safe to wonder whether that was hindering his grip last season, considering his elite groundball rate dipped to a still awesome 58.4 percent.
Treinen developed into a true late-inning arm in 2016 after an up-and-down performance in his first two years in the league, leading the Nationals' bullpen with 67 innings while posting a 2.28 ERA. His main step forward was that he was simply adequate against left-handers, yielding a league-average .737 OPS to lefties in 2016 compared to an awful .934 in 2015. Treinen is a classic sinker-slider type of pitcher, with both pitches coming in extremely hard. He tops out at around 97 mph, but that hasn't translated into elite strikeout numbers yet (he posted an above-average 24 percent strikeout rate last season). Instead, he lives on the ground, having improved his groundball rate in every season of his MLB career. His 65.9 percent mark was second to only Zach Britton among pitchers with at least 60 innings in 2016. Treinen is likely to again fill a setup role in 2017 alongside Shawn Kelley and Sammy Solis.
Expected to step into Tyler Clippard's set-up role after the veteran right-hander was traded in the offseason, Treinen struggled to harness his nasty 96 mph sinker in his first full season as a reliever, bouncing between the majors and Triple-A and posting fairly mediocre numbers overall with the Nationals. His main difficulty came against left-handed hitters, who raked him for a .336/.425/.509 slash line and 21:17 K:BB ratio, and until he can find a way to counter them, he'll have trouble providing consistent help out of the bullpen. The Nationals currently have Jonathan Papelbon and Drew Storen filling late-inning roles, although given the volatile way each of their seasons ended, either or both could be in other uniforms before GM Mike Rizzo is done this winter. Depending on what happens around him, Treinen could head into 2016 as staff filler with upside or as someone once again counted on to fill a role he hasn't proven he's ready for yet.
Treinen made a strong impression on the Nationals' coaching staff last spring when he fired a sinking fastball that was regularly clocked in the 95-98 mph range when used as a reliever. Moved back into the rotation at Triple-A and then used as a swingman during his various brief stints in the majors, the 26-year-old did enough to put himself in contention for a regular spot on the Nationals' staff in 2015, posting a superb 0.34 HR/9 rate in 131.1 innings across both levels. Given the organization's rotation depth and the way his sinker plays up in relief, he's likely ticketed for the bullpen long-term. If he sharpens his slider and changeup, he could yet prove he deserves a shot at the rotation.
More Fantasy News
Gets eighth save
POakland Athletics
May 20, 2019
Treinen gave up one run on one hit through 1.1 innings to record his eighth save in a 6-4 win over the Athletics.
Subscribe now to instantly reveal our take on this news.
Posts seventh save
POakland Athletics
May 18, 2019
Treinen allowed one hit but struck out one to nail down his seventh save in a 4-1 victory over the Tigers on Saturday.
Subscribe now to instantly reveal our take on this news.
Earns win but blows second save
POakland Athletics
May 11, 2019
Treinen (2-2) was credited with the win after suffering his second blown save in a 3-2 win over the Indians on Saturday. He struck out two and allowed one run on three hits and no walks over an inning of work.
Subscribe now to instantly reveal our take on this news.
Returns with two perfect frames
POakland Athletics
May 9, 2019
Treinen (elbow) tossed two perfect frames and struck out two Wednesday in the Athletics' 5-4 win over the Reds in 13 innings.
Subscribe now to instantly reveal our take on this news.
Spotted warming up Tuesday
POakland Athletics
May 8, 2019
Treinen (elbow) went unused Tuesday in the Athletics' 2-0 win over the Reds, but was spotted warming up in the bullpen in the ninth inning, C. Trent Rosecrans of The Athletic reports.
Subscribe now to instantly reveal our take on this news.