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Breakouts and Gems - 2018 MLB Waiver Wire Stars

Which MLB players saw their stock unexpectedly skyrocket in 2018? Ellis Canady looks at fantasy baseball players who were picked up very late in drafts or off the waiver wire to help fantasy teams get to the top of the standings.

Stars and Scrubs. Balanced approach. Regardless of the method chosen during drafts to fill your roster, your team likely needed more to get to the championship matchup or top of the standings. The skilled managers were ones who were able to discover players who would eventually break out.

Every year there will be players that exceed expectation. Some will do it for part of the year, while others will carry the magic the entire season. The key is identifying them and taking a chance on them early to maximize the return on the risk, which in most cases was very little since these guys were drafted very late, if at all.

Let's take a look at a few players who were the saviors for their teams in 2018 with a slight look towards expectations in 2019. If you have any thoughts on other waiver wire gems or any dynasty questions, reach out at Twitter to @EllisCan2.

Be sure to check all of our fantasy baseball draft tools and resources:

 

Waiver Wire Gems

Jed Lowrie (2B/3B, OAK)

At 34 years old, Lowrie decided he would be the one to get your fantasy roster off to a blazing start in 2018, if you jumped on the waiver wire early enough. March and April was the start of a successful year that included alternating months of great performance with months of mediocre/below average performance. Lowrie’s first half ended with 16 HR, 62 RBI, and a .282 AVG. He also chipped in 25 doubles to go with a 9.9% walk rate and a 19.9% strikeout rate. Lowrie’s second half wasn’t as successful, partially stemming from a leg injury he endured in a collision with Stephen Piscotty. However, Lowrie still ended the season with 23 homers, 99 RBI, and a .267 batting average.

Lowrie finished with a 4.8 WAR ranking him third at second base, behind only Javier Baez and Whit Merrifield. His finish this year helped reinforce his solid performance in 2017, in which his 3.6 WAR tied him for sixth. Lowrie has demonstrated that he can be a valuable contributor in a young Athletics lineup, even at the age of 35 in the 2019 season. His age will likely push him to the later rounds of the draft, a bargain for a player that can finish top 10 at the position.

Max Muncy (1B/2B/3B/OF, LAD)

Where in the world did Max Muncy come from? He’s just a 28-year-old guy that was cut from the Oakland Athletics before the start of the 2017 season. Muncy is a guy that had to wait for a high school baseball team to finish using the field before he was able to take batting practice to work on his hitting approach. The Dodgers gave him a chance; he played in Triple-A for the entire 2017 season. 2018 was a different outcome than what we saw from Muncy in the past. He seemed to be unstoppable in the first half, primarily June. At the All-Star break, he had 22 homers to go with a .271/.406/.609 slash line. He did compete in the home run derby and beat Javier Baez in the first round before being eliminated by Bryce Harper in the second round.

The second portion of the season started with dismal results. In July he hit seven HR with a .242 batting average followed by six homers and a .259 average in August. Some will talk about the home run derby jinx. However, the simpler answer is that pitchers made adjustments to him and after the All-Star break, he had to figure out how to make follow-up adjustments of his own. Muncy finished the season with 35 homers, 79 RBI, and .263 AVG. Also impressive was that he had a 16% walk rate to go with a strikeout rate that was tolerable (27%).

A lot of Muncy’s value moving forward will be dictated by the construct of the Dodgers infield going into 2019. Machado is a free agent who could take his services elsewhere, opening a spot. Of course, Magic Johnson and the rest of the Dodgers ownership are no strangers to spending money to retain quality players. Thus far, the postseason games have shown us that the team prefers Muncy at first base, albeit in a platoon for now. Something to remember is that his new approach at the plate is relatively new. With time, his first-half performance could become a more consistent representation of Muncy as a hitter.

Jesus Aguilar (1B, MIL)

Aguilar is another guy that gave your team an early competitive advantage in the first half. During that time, he hit for a .298 average with 24 homers and 70 RBI. It appeared almost unimaginable that he would come back down to earth, but as with most things that rocket past their expectations, there is the possibility of a crash on the other side. While it wasn’t a total failure in the second half, there was a drastic decline in Aguilar’s performance, which resulted in only 11 homers and a .245 batting average. He also saw his groundball rate increase from 30% to 41%. Aguilar, regardless of how he was performing throughout the season, always hit the ball hard, averaging 44% this year. He was a controlled hitter at the plate, only swinging at 33% of pitches outside the zone. Aguilar also had a 10% walk rate that helped owners as well.

Aguilar’s future is mostly set in Milwaukee as he has stabilized the first base spot for the Brewers. With a solid cast around him, expect him to accrue more stats in 2019 if he can maintain some consistency throughout the season, particularly if he remains in the cleanup spot.

Miles Mikolas (SP, STL)

Coming back over from Japan, Mikolas was a largely unknown commodity. His last venture in MLB was not a reassuring one but he performed very well in the Nippon Professional Baseball giving fantasy managers an intriguing option, at a very discounted price on draft day. Mikolas rewarded the few fantasy owners who grabbed him and earned 18 wins with only four losses. This is tremendous value for a player that mostly went undrafted. It wasn’t everything the fantasy owner wanted from Mikolas but as long as owners understood his place on the pitching staff, then they could be overly content with his single unattractive category. Mikolas is not a strikeout artist, especially with a 6.5 K/9. He utilized his three-pitch mix to become a very good control pitcher. While he did not help your team in the strikeout category, Mikolas was an innings-eater and helped your ratios with an ERA below 3.00 (2.83) and a WHIP at 1.07. He was mostly successful by keeping the ball on the ground (49%) and limiting the longball (0.72 HR/9).

With veteran game-caller Yadier Molina behind the plate for the next two years, it is distinctly possible that Mikolas could repeat this year’s effort in 2019. While he won’t fly up draft boards, he will not go undrafted now that managers know they can get a guy who can help their ratios and increase the chances of getting wins. Of course, do not get sucked into the hype if the ADP seems a bit high to begin 2019. It is tough to waste valuable innings on pitchers with such a low strikeout rate.

Mike Foltynewicz (SP, ATL)

Foltynewicz had a breakout season in 2018. In some basic sense, he flipped the script from a 10-13 record in 2017 to 13-10 in 2018 with a 2.85 ERA. He has a 9.93 K/9 resulting in 202 strikeouts in 183 innings pitched this year. Folty found success using primarily two pitches, his fastball (56%) and slider (27%). He used a curveball (10%) just used enough to qualify as a third pitch. Foltynewicz performed well regardless of which side of the plate the hitter was standing. He allowed only a .181 batting average against to left-handed hitters and a .207 against to right-handers. Another encouraging sign is that he did not trail off too much as the season went on. He had a 3.10 ERA in the second half, higher than his 2.66 ERA in the first half.

Folty will only be 27 years old when the 2019 season begins. There are a couple of things to be cautious about; first, it would be that he tapered off as the individual game went along. Particularly, the third time through the batting order is where he started to falter with a 3.83 ERA compared to the first (2.65) and second time (2.31) through the lineup. Secondly, he had a 3.34 walk rate that will not do him any favors, especially when his .251 BABIP starts to normalize. Expect Folty's draft stock to rise tremendously in 2019. Do not get caught up in the bidding war or any draft hype. If you can get him at a reasonable price, do so; just do not overextend.

More 2018 MLB Year In Review Articles




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REAL-TIME FANTASY NEWS

Brandon Sproat

Dealt to Brewers in Four-Player Trade
Jett Williams

Brewers Acquire Jett Williams From Mets
Freddy Peralta

Mets Acquire Freddy Peralta From Brewers
Jonas Valančiūnas

Jonas Valanciunas Questionable Versus the Wizards
Seth Jones

to Miss Olympics
Christian Braun

Remains Sidelined on Thursday
Martin Pospisil

Makes Season Debut Wednesday
Jalen Suggs

Questionable Versus Charlotte
Teddy Blueger

Available Wednesday Night
Tom Wilson

Comes Off Injured Reserve
Luke Hughes

Devils Place Luke Hughes on Long-Term Injured Reserve
Valeri Nichushkin

Returns to Action Wednesday
Kris Letang

a Game-Time Call Wednesday
Caris LeVert

Sidelined Wednesday
Cade Cunningham

Unavailable on Wednesday
Tre Mann

Available Versus Cavs
Ja'Kobe Walter

Out of Action Again on Wednesday
RJ Barrett

Remains Sidelined on Wednesday
Collin Murray-Boyles

Ruled Out on Wednesday
Domantas Sabonis

Sidelined Wednesday
Kyle Tucker

Expected to Bat Second or Third in Dodgers' Lineup
Brandon Aiyuk

has "Played his Last Snap as a Niner"
Cody Bellinger

Signs Five-Year, $162.5 Million Contract With Yankees
Adam Scott

Looks to Overcome Putting Woes at American Express
Billy Horschel

Looking to Rebound at The American Express
Josh Allen

Might Need Foot Surgery
Russell Henley

Looks to Build on Strong Start at The American Express
Jason Day

Looking to Start 2026 Strong at The American Express
Wyndham Clark

Looking to Regain Form at The American Express
Sam Burns

Looks to Continue Success at The American Express
Akshay Bhatia

Looking to Flip the Script at The American Express
Christiaan Bezuidenhout

Looking to Build on Strong Fall in Season Debut
Kurt Kitayama

Hopes To Continue Strong Start to 2026 Season at American Express
CFB

Princewill Umanmielen Expected to Sign with LSU
Scottie Scheffler

Returns To American Express After Missing Last Year's Edition
Robert MacIntyre

Keeps Momentum Rolling Heading Into American Express
Brian Harman

Can Challenge at American Express if His Putter Stays Hot
Ben Griffin

Outstanding Form Continues Heading Into American Express
Matt Fitzpatrick

Continues Playing Well Following Outstanding Finish to 2025 Season
Patrick Cantlay

Looks to Get a Jump Start on His 2026 Season
Blades Brown

Set to Make First PGA Tour Appearance of 2026
Kevin Roy

Has Some Confidence Heading to Southern California
Josh Morrissey

Has Three-Point Night Against Blues
Min Woo Lee

Poised to Make Bigger Impact in 2026
Miro Heiskanen

Records Three Helpers Tuesday
Brandon Hagel

Stays Hot Tuesday Night
Ryan O'Reilly

Extends Scoring Streak With Three-Point Effort
Max Homa

Needs a Better Start for 2026
Konsta Helenius

Bags Three Points In Tuesday's Win
Tony Finau

Trying to Reverse Disturbing Trend
Anthony Cirelli

Injured Versus Sharks
Cam Davis

Aims for More Accuracy at American Express
Darcy Kuemper

Hurt on Tuesday Night
Isaiah Hartenstein

Unavailable Against Bucks
Myles Turner

Uncertain for Wednesday Night
Luisangel Acuña

Luisangel Acuna Sent to White Sox in Trade
Kevin Porter Jr.

Questionable Wednesday
Luis Robert Jr.

Mets Acquire Luis Robert Jr. from White Sox
Cam Thomas

Rejoins Nets Lineup for Meeting With Knicks
Jaylen Brown

Considered Probable Wednesday
Steven Adams

Out Indefinitely With Ankle Sprain
Deandre Ayton

Exits Early With Eye Injury
CFB

Justin Joly Bringing Strong Resume of Production to NFL
Los Angeles Chargers

Mike McDaniel Expected to Become Chargers Offensive Coordinator
Kel'el Ware

Unavailable on Tuesday
Mikko Rantanen

Out Tuesday
Andrew Peeke

Returns to Action Tuesday
Rodrigo Abols

Expected to Miss Several Months
Luke Hughes

Out Tuesday
Jonas Brodin

Will Miss Olympics
Carlos Beltran

Andruw Jones Elected to Baseball Hall of Fame
Alexandre Texier

Won't Play Tuesday
Kirby Dach

Rejoins Canadiens Lineup
Mark Williams

Active On Tuesday
Brice Sensabaugh

Unavailable Tuesday
De'Anthony Melton

In for Back End of Back-To-Back
CFB

Alberto Mendoza Expected to Land at Georgia Tech
Malik Nabers

Giants Hope Malik Nabers Will be Back for Start of Training Camp
CFB

Duke Suing Quarterback Darian Mensah
Cam Skattebo

Should be Ready by OTAs
George Kittle

Expects to Return "Well Before November"
CFB

Alberto Mendoza Entering Transfer Portal
Mookie Betts

Plans to Retire at the End of his Current Contract
Tennessee Titans

Titans Set to Hire Robert Saleh as Next Head Coach
Miami Dolphins

Dolphins Expected to Hire Jeff Hafley as Next Head Coach
Zach Charbonnet

has Torn ACL
Zach Charbonnet

Needs Knee Surgery, Out for Rest of Playoffs
Tennessee Titans

Mike McCarthy a Finalist for Titans Head-Coaching Job?
Colston Loveland

Suffers Concussion in Divisional Round Loss
Kyren Williams

Scores Two Touchdowns in Divisional Round Win
Buffalo Bills

Bills Fire Head Coach Sean McDermott
Rhamondre Stevenson

Returns in Sunday's AFC Divisional Round Game
Ha-Seong Kim

has Finger Surgery, Out 4-5 Months
Rhamondre Stevenson

Questionable to Return on Sunday With Eye Injury
Woody Marks

Returns Following Brief Exit on Sunday
Dalton Schultz

Won't Return in Sunday's AFC Divisional Round Game
Aaron Rodgers

Steelers Open to Aaron Rodgers Returning in 2026?
Jarrett Stidham

to Start AFC Championship Game
Zach Charbonnet

Questionable to Return Against 49ers
CFB

Darian Mensah Entering Transfer Portal
J.T. Realmuto

Signs Three-Year Deal to Return to Phillies
Bo Bichette

Agrees to Three-Year Contract With Mets
CFB

Weber State Signs former Ohio State, Cal Quarterback Devin Brown
Bo Bichette

Phillies the "Overwhelming" Favorite to Sign Bo Bichette

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