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New users can take advantage of the top MLB DFS promotions and odds boosts from sites like Underdog Fantasy, Sleeper and ParlayPlay. Monday's slate is an ideal one for MLB DFS contests with all 30 teams in action and top pitchers on the mound. Two-time Cy Young winner, Jacob deGrom, is in contention for his third award as he'll tote the rubber, while 23-year-old phenom Jacob Misiorowski will resume his campaign to win Rookie of the Year. Star pitchers often elicit high interest on MLB DFS sites and in daily MLB Fantasy contests as you only get to use them every five or so days, making Monday MLB DFS promos ones to seek out.

Here's a look at some of the top MLB promo codes for contest sites like Underdog Fantasy, Sleeper and ParlayPlay for Monday, July 28.

MLB promos for Underdog Fantasy, Sleeper, ParlayPlay

Here's a look at the MLB promo codes being offered by best DFS apps like Underdog Fantasy, Sleeper and ParlayPlay.

SiteBonus Offer Promo Code
Underdog FantasyDeposit and get 50% match up to $1,000CBSPORTS2
Sleeper100% deposit match up to $100CBSSPORTS
ParlayPlayReceive a free $5 entryCBSSPORTS
betrFirst entry matched up to $250CBSSPORTS
Boom Fantasy$100 first entry refundJUST CLICK HERE
DraftKingsNew players play $5, get $50 in Pick6 creditsJUST CLICK HERE

MLB props, lines for Monday, July 28

Formats and lines will vary across the various DFS sites, but deGrom will definitely be one of the most sought after pitchers as he faces the Angels. He uncharacteristically struggled versus Los Angeles just three weeks ago, allowing 3 ER, which is his second-most of the season. With a 2.28 ERA on the season that ranks third in the National League, deGrom's consensus line for earned runs allowed is 1.5. Perhaps assisting with picks on MLB DFS sites with this over/under is knowing that the game takes place in Los Angeles, and deGrom's ERA is 2.75 on the road, compared to 1.91 at home. 

Meanwhile, Misiorowski has racked up strikeouts left and right and has notched a combined 19 K over his last two starts. He and Milwaukee, however, will face the Cubs, whose 5.27 runs scored per game are the most in Major League Baseball. The rookie's over/under for strikeouts is 5.5 as he's averaging 6.7 strikeouts across his half-dozen starts so far.

Those on the mound aren't the only ones who will be popular to target with MLB DFS promo codes. Sluggers such as Shohei Ohtani (+145), Cal Raleigh (+165) and Mike Trout (+300) are some of the most likely players to hit a home run on Monday. 

Betr: First entry matched up to $250

Use the promo code CBSSPORTS to get your first entry matched up to $250 in Betr Bucks.

Boom Fantasy: $100 First entry refund

New users get a risk-free entry up to $100 in Boom Fantasy bonus funds if your wager loses.

DraftKings: New players play $5, get $50

New users who make an initial wager of $5 or more at DraftKings will then get $50 credit in Pick6 credits.

ParlayPlay: Join now and receive free $5 entry

No deposit required and free entry expires seven days after receipt. Any winnings from your ParlayPlay tournament entry will be paid in promo funds. Winnings from promo funds will be deposited to your account subject to meeting the 1x playthrough requirement and site credits are non-withdrawable.

Sleeper: 100% deposit match up to $100

Promo code CBSSPORTS is required to receive this bonus from Sleeper, which is offered in the form of site credits. Site credits aren't withdrawable until you've completed a 1x playthrough on your deposit and your deposit match. This offer is for new customers only and site credits expire 30 days after issue.

Underdog Fantasy: Deposit and get 50% match up to $1,000

Underdog Fantasy is giving new customers a 50% deposit match up to $1,000. A minimum deposit of $10 is required and your bonus will be issued in the form of site credits that will equal the amount of a qualifying deposit using promo code CBSSPORTS2. Site credits are non-withdrawable until you've played through your deposit and the site credit match one time.

Responsible gaming

Responsible gambling is taken very seriously across all contest sites. All provide the necessary resources and contact information if you or someone you know may have a gambling problem. The minimum age is 18 for these sites in most states, but it is 19 or older in Alabama and Nebraska and 21 or older in Massachusetts. 

Responsible gambling resources include the National Council for Problem Gambling (NCPG) and Gamblers Anonymous.

Be smart. Bet smart. Wager responsibly. Those in need of help can also call or text 1-800-GAMBLER (1-800-426-2537). Help is available 24 hours per day and seven days per week.