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1B/3B Waiver Wire Pickups for Fantasy Baseball - Week 18

Christian Walker - Fantasy Baseball Rankings, MLB Injury News, Draft Sleepers

Mike's fantasy baseball waiver wire pickups for 1B and 3B for Week 18 of the 2022 MLB season. Consider adding and streaming these first basemen and third basemen.

Welcome back RotoBallers to Week 18 of the MLB season, and another edition of our first base and third base waiver wire pickups.

We're approaching the home stretch of fantasy baseball and, as trade deadlines pass, the waiver wire could be your best chance to improve your roster for a championship push.

Let’s keep rolling right along here with some names to consider as fantasy baseball waiver wire pickups for this upcoming week 18 of the MLB and fantasy baseball season – August 8 through August 14.

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

 

Waiver Wire Pickups for Shallow Leagues (40-59% rostered)

Christian Walker, 1B, Arizona Diamondbacks (46% rostered)

Walker started to flex his muscle in Cleveland last week as he launched two homers and added a double in the three-game set. On the season, his numbers look quite pedestrian, but Statcast tells a different story.

Walker has a sturdy 13.4% barrel rate, a 43% hard-hit rate, and his expected slugging percentage ranks in the 92nd percentile among all hitters. Best of all, he's striking out under 20% of the time so he could be in for a big finish if his .188 BABIP corrects itself to his career norm which is 90 points higher at .278.

Aledmys Diaz, 1B/2B/3B/SS/OF, Houston Astros (41% rostered)

The jack-of-all-trades for the Astros has been scalding-hot since the All-Star Break with a .333 batting average and 16 runs-plus-RBI in that span.

He's recorded multiple hits in four of his last eight games and is racking up the counting stats in the middle of a deadly Houston batting order that got even better last week with the addition of Trey Mancini. With eligibility all over the diamond, Diaz is an asset to add in fantasy.

 

Waiver Wire Pickups for Deeper Leagues (20-39% rostered)

Luke Voit, 1B, Washington Nationals (35% rostered)

It's not the sexiest pickup, but Voit has shown big power in the past and a change of scenery could tap into that power as he joins the rebuilding Washington Nationals. Voit clubbed his 14th homer of the season - and first as a National - on Saturday as he was batting third in the lineup.

Voit never seemed to fit in with a crowded Padres offense, so even though he's in a worse order, Voit should improve with a better lineup slot and assured everyday at bats in DC. If he hits anything close to his .492 career slugging percentage over the last two months then Voit can help make up ground in the power stats for fantasy managers.

Seth Brown, 1B/OF, Oakland Athletics (28% rostered)

Speaking of players with assured playing time in rebuilding teams, Brown is heating up for the A's with four homers in his last five starts. There's not a ton to be excited about in Oakland, but Brown has 16 homers on the season and, better yet, is sporting a career-best strikeout rate which has his wOBA at a sturdy .323.

In addition to his power, Brown also has eight stolen bases on the season making it easier to live with his low batting average in roto leagues.

 

Others to Consider



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REAL-TIME FANTASY NEWS

Brad Marchand

Dealing With Lingering Health Issue
Haydn Fleury

Hospitalized Tuesday
Moussa Diabaté

Ryan Kalkbrenner Out, Moussa Diabate Probable Wednesday
Brandon Miller

Listed as Probable Wednesday
Alex Caruso

Absent for Second Consecutive Game
Nicolas Claxton

Available Wednesday
Moritz Wagner

Still Out Wednesday
Franz Wagner

Not Ready to Return Wednesday
Jalen Suggs

Remains Out Wednesday
Draymond Green

Questionable to Suit Up Wednesday
Jalen Smith

Ruled Out for Second Straight Game
Matas Buzelis

Could Miss First Game of the Season Wednesday
Coby White

May Skip Wednesday's Game
Cade Cunningham

Probable for Wednesday
Isaiah Hartenstein

to Remain Out Wednesday
Kelly Oubre Jr.

Could Return to Action Wednesday
Tim Hardaway Jr.

May Remain Out Wednesday
Christian Braun

Listed as Questionable for Wednesday
Aaron Gordon

Iffy for Wednesday
Jamal Murray

Considered Questionable for Wednesday Night
Max Strus

to Miss Another Month
Vince Williams Jr.

Making Return Tuesday Against Spurs
Trae Young

Listed as Questionable for Wednesday
New York Giants

John Harbaugh Expected to be Favorite to Become New Giants Head Coach
Mason Marchment

Out Tuesday
Sean Monahan

Available Tuesday
Jason Zucker

Set to Return From 11-Game Absence
Matvei Michkov

a Game-Time Call Tuesday
Matthew Schaefer

Cleared for Action Tuesday
Baltimore Ravens

John Harbaugh Won't Return as Ravens Head Coach
Adam Fox

Landing Back on Long-Term Injured Reserve
Seth Jarvis

Back for Hurricanes Tuesday
Bo Bichette

Unlikely to Return to Toronto?
Jordan Love

Ready to Start in Wild-Card Game Against Bears
CFB

Jadan Baugh Staying with Florida for Junior Season
Washington Commanders

Commanders "Mutually" Parting Ways With OC Kliff Kingsbury
CFB

Byrum Brown Officially Commits to Auburn
CFB

Austin Simmons Signing with Missouri
Jake McCabe

to Sit Out One Week
Hampus Lindholm

to Miss Time
Christian Dvorak

Flyers Sign Christian Dvorak to Five-Year Extension
Igor Shesterkin

Exits With Lower-Body Injury Monday
Joel Armia

Hurt in Monday's Win
Anze Kopitar

Sustains Lower-Body Injury Monday
Matthew Schaefer

a Game-Time Call Tuesday
Jamie Benn

to Miss at Least Two Games
Seth Jones

Out Week-to-Week
Zach Bogosian

Unavailable Monday Night
Trevor Moore

Remains Out Monday
Aliaksei Protas

a Game-Time Call Versus Ducks
CFB

Ty Simpson Undecided on 2026 Plans
CFB

Quarterback AJ Hill Following Ryan Silverfield to Arkansas
Atlanta Falcons

Falcons Have Requested an Interview With Klint Kubiak
Deshaun Watson

Browns Expect Deshaun Watson to be on the Team Next Year
Wan'Dale Robinson

Dealing With Fractured Ribs
Cam Skattebo

Hopes to be Back by Training Camp
Cameron Ward

Won't Need Surgery on his Shoulder
Davante Adams

Rams Expect Davante Adams to Return in Wild-Card Round
Arizona Cardinals

Cardinals Fire Head Coach Jonathan Gannon
Las Vegas Raiders

Raiders Fire Head Coach Pete Carroll
Malik Nabers

Unsure if He Will Be Ready for Week 1 of 2026 Season
CFB

Trinidad Chambliss Will Return to Ole Miss If Granted Sixth Year of Eligibility
Cincinnati Bengals

Zac Taylor Will Return as Bengals Head Coach in 2026
New York Giants

Giants Expected to Show Interest in Former Browns Head Coach Kevin Stefanski
Daniel Jones

Colts, Daniel Jones Appear to Have "Mutual Interest" in a 2026 Reunion
Cleveland Browns

Browns Fire Kevin Stefanski After Another Losing Season
Zay Flowers

Goes Off for 138 Yards, Two Touchdowns in Loss
Bo Bichette

Phillies Have Interest in Bo Bichette
Amon-Ra St. Brown

Dominates in Week 18 Win
Cameron Ward

Believed to Have Grade 3 AC Joint Sprain in Right Shoulder
Colston Loveland

Leads Bears in Targets, Receptions, Receiving Yards in Week 18
Kansas City Royals

Matt Quatraro Signs Three-Year Extension With Royals
CFB

Transfer QB Billy Edwards Commits to North Carolina
CFB

Sam Leavitt Visiting Texas Tech on Saturday
CFB

DJ Lagway Expected To Visit Florida State
Kyle Tucker

Blue Jays "Remain the Favorite" to Sign Kyle Tucker
CFB

Joey Aguilar Undergoes Surgery to Remove Tumor on Friday
CFB

Texas the "Team to Beat" for Transfer Running Back Isaac Brown
CFB

Rocco Becht to Follow Matt Campbell to Penn State?
CFB

Texas Targeting Cam Coleman in Transfer Portal
CFB

Former Texas Running Back CJ Baxter Visiting Kentucky
CFB

Beau Pribula Visiting Virginia Tech, Georgia Tech
Bo Bichette

Yankees Showing Interest in Bo Bichette
Houston Astros

Astros Sign Tatsuya Imai to Three-Year Deal

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