👉 TAP TO SAVE 30% WITH CODE NEW
X
Lost password?

Don't have an account?
Gain Access Now

X

Receive free daily analysis

NFL
NBA
NHL
NASCAR
CFB
MLB
MMA
PGA
ESPORTS
BETTING

Already have an account? Log In

X

Forgot Password


POPULAR FANTASY TOOLS

#1 Expert Projections
Save 30% Now
Import Your Leagues
Props Tool
Compare Any Players
Compare Any Players
24x7 News and Alerts

Today's MLB Betting Picks - Odds, Expert Predictions, and Best Bets (09/15/23)

Marcus Semien - Fantasy Baseball Rankings, MLB Injury News, DFS and Betting Picks

Brenton Kemp's top MLB betting picks and best bets for today's MLB games on 09/15/23. His free picks against the spread, game totals, and other baseball bets.

We have a jam-packed 15-game on this Friday, Sept. 15 MLB schedule with all of the action taking place in the evening. Let's comb through the loaded slate and come out with some value as we look to head into the weekend on the right note!

Attention fellow sports bettors! We have some exciting news to share as we are now officially partnered with various sportsbooks and have some sweet sports betting promo offers! Get your deposit bonus, as well as a year of free RotoBaller Premium access, when you sign up with a new account today! After you're signed up, use our picks in this article for spreads, totals, and props to win big.

Feel free to give me a follow on Twitter @BKemp17 with any questions or comments or plain ol' baseball talk! Now, let's dive into Thursday's free MLB betting picks and see if we can pad those bankrolls!

Featured Promo: New Novig users get a $25 purchase match (50% discount up to $25) on your first Novig deposit, and 6 free months of RotoBaller's "Big-4" Premium Pass (NFL, NBA, MLB, NHL) which includes exclusive tools for Betting, Props, DFS and more! CLAIM IT NOW

 

Today's MLB Betting Picks - Tampa Bay Rays vs. Baltimore Orioles

O/U: 8.5 | Moneyline: TB (-122)
TB: Zach Eflin | BAL: Jack Flaherty

It's a battle of the top two teams in the junior circuit tonight in Baltimore as the Tampa Bay Rays pay another visit to the Orioles on the heels of a tight 4-3 Rays victory in Thursday's series opener.

The road side will give the ball to right-hander Zach Eflin, who the club targeted in free agency this past winter. When an organization like the Rays hands out a three-year deal worth a total of $40 million, you know they see something they like and it's been a nice marriage in the first year of that contract.

Eflin enters this one sporting a 3.53 ERA across 28 outings on the season while he's also worked to a 3.08 FIP, 3.40 SIERA, and a stellar 22.1% K-BB% on the back of an elite 3.6% BB% that ranks second in baseball among qualified hurlers. He has allowed three earned runs or less in seven of his last eight starts and two earned runs or fewer in five of his last eight.

For the Orioles, they will send out a trade-deadline acquisition in the form of former Cardinal Jack Flaherty. Once a young ace in St. Louis, injuries and underperformance have been the only constants for Flaherty in recent years as he owns a 4.98 ERA, 4.64 SIERA, and an 11.9% K-BB% on the season, the latter of which is roughly half of what he was producing in his peak early-career years.

Additionally, the right-hander has been rocked since coming to Baltimore as he sports a 7.16 ERA across his first six starts in an Orioles uniform while allowing a hefty 11.4 hits per nine innings in that time.

As is the case with the starting pitching matchup, the offensive advantage goes to the Rays as well. Tampa Bay sits fourth with a .336 wOBA on the season versus right-handed pitching while the Orioles sit in a share of 15th with a .320 wOBA off of righties.

One area where the O's have been sensational this season is in the bullpen where they sit second in baseball with a 3.50 ERA. However, the Rays are no slouch as they are tied with the Astros for eighth with a 3.71 ERA from their relievers on the season.

The starting pitching matchup is a clear mismatch, the Rays rake righties, and they have a stable bullpen. Yet, we're getting wildly reasonable odds on a moneyline win here. Sign me up.

Pick: Rays moneyline (-122, DraftKings sportsbook)

Sports Betting Promo Offers

Featured Promo: Get any Betting Premium Pass for 30% off using code NEW. Win more with exclusive betting picks from proven winners across 9 sports! Find optimal bets with our Betting Picks Tool and Bet Weighting Tool and follow along in our VIP chat rooms! Go Premium, Win More!

 
Today's MLB Betting Picks - Texas Rangers vs. Cleveland Guardians

O/U: 8 | Moneyline: TEX (-120)
TEX: Jon Gray | CLE: Lucas Giolito

The Texas Rangers are coming into a three-game set in Cleveland white-hot following a key four-game sweep of the Toronto Blue Jays this week in Toronto while the Cleveland Guardians return home after dropping two of three to the Giants in San Francisco.

Getting the ball for Texas is veteran right-hander Jon Gray who is coming off a tough outing his last time out. Gray lasted just 2 2/3 innings while yielding four runs (three earned) on four hits and a pair of walks. That outing raised his ERA to a solid 3.96 on the season while he sports a 4.26 FIP, 4.49 SIERA, and a middling 13.3% K-BB% across his 26 starts on the campaign.

However, for whatever reason, Gray has been much better on the road. The former Rockies ace owns a 3.41 ERA across 68 2/3 frames away from Arlington on the season versus a 4.46 mark at home. He's also yielded just 0.79 HR/9 on the road against a 1.41 HR/9 clip at home while his 3.59 FIP outside of Globe Life Field backs up his rock-solid road ERA.

It has certainly been a whirlwind of a season for right-hander Lucas Giolito between three teams and mixed results. Overall, Giolito sports a 4.89 ERA across 29 starts, although his 4.19 SIERA suggests he's been better than that. Nonetheless, he's been bashed for 13 earned runs in 10 innings across two starts with Cleveland.

More concerning is his vulnerability to the long ball. He has allowed a whopping six homers, three in each start, in those 10 frames with the Guardians, elevating him to a ghastly 1.98 HR/9 on the season, good for the third-highest home-run rate among qualified pitchers.

That is a problem against this Rangers offense. They just trounced a very good Blue Jays pitching staff for 35 runs in four games, scoring at least six runs in each contest and a minimum of nine runs in three of the four games. They rank sixth with 208 homers on the season, fourth with 160 homers off of righties, and third with a .340 wOBA off of right-handers.

Meanwhile, the Guardians rank 22nd with a .305 wOBA off of righties while their .130 isolated power off of right-handers is dead last in all of baseball.

Winners of six in a row and in the middle of a heated Wild Card race, the Rangers should slug their way to another victory over a struggling pitcher tonight in Cleveland.

Pick: Rangers moneyline (-120, DraftKings sportsbook)

Let's get it!



Download Our Free News & Alerts Mobile App

Like what you see? Download our updated fantasy baseball app for iPhone and Android with 24x7 player news, injury alerts, sleepers, prospects & more. All free!



More Fantasy Baseball Analysis




POPULAR FANTASY TOOLS

#1 Expert Projections
Save 30% Now
Import Your Leagues
Props Tool
Compare Any Players
Compare Any Players
24x7 News and Alerts

REAL-TIME FANTASY NEWS

Si Woo Kim

Has Become Less Reliable Ahead of RBC Heritage
NFL

Teams Concerned About Rueben Bain Jr.'s Off-the-Field Issues
Brandon Allen

Giants Sign Brandon Allen to Add to QB Room
Denver Broncos

Eli Stowers Visiting With Broncos
Dontayvion Wicks

Could End Up Being Eagles WR2
New York Jets

Omar Cooper Jr. Visits With Jets on Monday
Miami Dolphins

Makai Lemon Visits With Dolphins on Monday
Ja'Tavion Sanders

Looks Good After Ankle Surgery
Tank Dell

2026 Availability Still a Mystery
Bhayshul Tuten

to Have Much Bigger Role in 2026?
DeVonta Smith

Eagles Think DeVonta Smith Could be an Elite WR1
De'Von Achane

Dolphins, De'Von Achane Not Close to Contract Extension
Russell Henley

Looks to Carry Momentum Into Harbour Town
Christian Yelich

Placed on 10-Day Injured List With Groin Strain
Jeremiah Jackson

has Career Day on Monday
Jake Burger

Goes Yard Twice in Win Over A's
Mike Trout

Two Homers, Five RBI Not Enough at Yankee Stadium
Tommy Fleetwood

a Good Ball-Striking Play at RBC Heritage
Trent Grisham

Comes Off the Bench to Hit Two Homers
Aaron Judge

Homers Twice on Monday in Win Over Angels
Sam Burns

Hopes to Carry Good Form to Harbour Town
Harris English

Solid but Not Spectacular in 2026
Daniel Berger

Could Contend Again at Hilton Head
Joe Mixon

Is There Any Value Still to Be Squeezed From Joe Mixon?
Marvin Mims Jr.

Likely the Odd Man Out in a Crowded Broncos Receiver Room
RJ Harvey

Ceiling Likely Still Capped in Year 2
Mark Scheifele

Establishes New Franchise Record With 101 Points
Baker Mayfield

Can Baker Mayfield Regain QB1 Status?
Quinton Byfield

Scores Twice in Playoff Clincher
Porter Martone

Extends Point Streak to Five Games
Brian Robinson Jr.

Could Have Standalone Flex Value as High-Level Insurance Back
Macklin Celebrini

Nets Two Goals Against Predators
Matt Duchene

Registers Three Assists Monday Night
Nikita Kucherov

Hits 130-Point Mark in Monday's Overtime Win
Jack Eichel

Collects Four Points Against Jets
Jordan Goodwin

Returns From Two-Game Absence
Jerami Grant

Tagged as Questionable for Tuesday
Grayson Allen

Questionable Tuesday
Jalen Green

Cleared for Action Tuesday
Devin Booker

Available Tuesday
Immanuel Quickley

Considered Day-to-Day
Joel Embiid

Expected to Miss Play-In Tournament
Nolan Arenado

Hits Two Homers, Drives in Five on Monday
Brandon Lowe

Stays Hot in Monday's Blowout Win Over Nationals
Kyle Schwarber

Goes Deep Twice on Monday in Win Over Cubs
Tucker Kraft

Worth Buying Low in Dynasty Leagues?
Jackson Holliday

Not Expected to Come Off Injured List This Week
Jakobi Meyers

the Jaguars Receiver to Target in Dynasty Leagues?
Tage Thompson

Reaches 40 Goals
Jayden Higgins

Is Jayden Higgins a Year 2 Breakout Candidate?
Mavrik Bourque

has a Hat Trick on Monday
Sam LaPorta

a Buy-Low Target Coming Off of Injury
D'Andre Swift

Is it Time to Trade D'Andre Swift in Dynasty Leagues?
Patrick Cantlay

Finding Form Heading to RBC Heritage
Ludvig Aberg

Continues Playing Well Heading to RBC Heritage
Ryan Mountcastle

Orioles Place Ryan Mountcastle on 60-Day Injured List With Foot Fracture
Dru Smith

Ruled Out Against Hornets on Tuesday
Pelle Larsson

Considered Questionable for Tuesday
Simone Fontecchio

Slated to Suit Up Against Hornets
Nikola Jović

Nikola Jovic Unavailable for Tuesday
Frank Nazar

Good to Go Monday
Luka Dončić

Luka Doncic to be Re-Evaluated on Tuesday
Brandon Hagel

Misses Monday's Action
Radek Faksa

Michael Bunting, Radek Faksa Rejoin Stars Lineup Monday
MIN

Wild Resting Several Key Players Monday
Jared McCann

to Miss Kraken's Last Three Games
Jonathan Quick

to Make Final NHL Appearance Monday
Leon Draisaitl

Returns to Practice
Merrill Kelly

to Make his Season Debut on Tuesday
Tatsuya Imai

Going on 15-Day Injured List With Arm Fatigue
CFB

Tramell Jones Jr. Outperforms Aaron Philo During Florida's Spring Scrimmage
Jeremy Peña

Jeremy Pena Lands on 10-Day Injured List With Hamstring Strain
CFB

Keelon Russell Flashes in Alabama's Spring Game
Ty Gibbs

Holds off the Field for His First Cup Series Victory at Bristol
Ryan Blaney

Earns His First Runner-Up Finish at Bristol
Kyle Larson

Dominant Performance At Bristol Falls Short of Victory
Tyler Reddick

Matches his Career-Best Finish at Bristol
Alex Bowman

Crashes Early at Bristol in Return From Injury
Derik Queen

has 30-Point, 22-Rebound Season Finale
Ryan Nembhard

Sets Rookie Assist Record
Carlos Ulberg

Is The New Light Heavyweight Champion
Cade Cunningham

Records 14 Assists Sunday
Jiří Procházka

Jiri Prochazka Suffers First-Round Knockout Loss
Milwaukee Bucks

Doc Rivers Departs as Bucks Head Coach
Azamat Murzakanov

Suffers His First Loss
Dylan Harper

Suffers Thumb Injury in Finale
Paulo Costa

Wins Back-to-Back Fights
Immanuel Quickley

Leaves Finale with Hamstring Issue
Cooper Flagg

Exits Finale with Ankle Injury
Curtis Blaydes

Drops Decision At UFC 327
Josh Hokit

Remains Unbeaten
Chris Kreider

Posts Two Assists in Overtime Loss
Marco Rossi

Gives Canucks Rare Victory
Nico Hischier

Records 30th Three-Point Game
Adam Fantilli

Nets 24th Goal of the Season
Lane Hutson

Reaches Historic Record With Two Assists Sunday
Collin Sexton

Cleared to Play Sunday
Mark Williams

Sits Season Finale
Christian Yelich

Brewers Expecting "Bad News" on Christian Yelich
Edwin Díaz

Dodgers Monitoring Edwin Diaz's Velocity
Carson Hocevar

Is Carson Hocevar A Worthy DFS Option for Bristol Lineups?
NASCAR

Could Bubba Wallace Be A Solid DFS Option for Bristol Lineups?
Sam Antonacci

Slated to Make MLB Debut on Tuesday
Mickey Moniak

has Multi-Homer Game in San Diego
Jeremy Peña

Jeremy Pena Leaves Early on Saturday With Knee Tightness
Noah Schultz

White Sox to Promote Top Pitching Prospect Noah Schultz
Tyler Soderstrom

Slugs Two Home Runs in Win Over Mets
Carlos Ulberg

A Slight Underdog
Jiří Procházka

Jiri Prochazka Can Become UFC Champion Again
Paulo Costa

Makes his Light-Heavyweight Debut
Azamat Murzakanov

Looks To Remain Unbeaten
Josh Hokit

Looks To Remain Undefeated
Curtis Blaydes

A Favorite At UFC 327
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF