MLB Expert Picks & Baseball Predictions June 30

Joe Osborne: Senior Betting Analyst at Covers
Joe Osborne • Senior Betting Analyst 16+ years betting experience
Updated: Jun 30, 2026 , 11:42 AM ET • 4 min read

Our MLB experts anticipate plenty more runs in Colorado this evening.

MLB Expert picks
Photo By - Reuters Connect. Hunter Goodman (15) hits a home run off a pitch from Minnesota Twins starting pitcher Mike Paredes

Action on the diamond doesn't stop, and our MLB experts have sifted through games to bring you the best MLB picks for June 30.

Highlighted teams for today include the Washington Nationals, Miami Marlins, and Colorado Rockies!

  • UPDATE: TEXT.

MLB expert picks for today

Pick Odds
Neil Parker Neil Parker: Nationals ML +122
Joe Osborne Joe Osborne: Marlins vs Rockies - Over 11.5 +108

Prices courtesy of Polymarket.

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Neil Parker's expert pick: Nationals moneyline

Price: 45¢ (+122) at Polymarket

The Washington Nationals pace the majors in wOBA against lefties, and Boston Red Sox southpaw Connelly Early has surrendered the 10th-highest barrel percentage among pitchers with at least 75 innings.

Early is also eyeing statistical correction with his 3.59 ERA well below his 4.72 FIP, in addition to his unsustainably high 85.7% strand rate.

The Boston offense doesn’t move the needle with a 27th-ranked xwOBA in June and sixth-lowest barrel percentage for the season, either.

  • Time: 7:10 p.m. ET
  • How to watch: NESN, Nationals.TV

Joe Osborne's expert pick: Marlins vs Rockies - Over 11.5

Price: 48¢ (+108) at Polymarket

The Miami Marlins and Colorado Rockies could be in for another offensive explosion after combining for 17 runs on Monday at Coors Field.

Both lineups enter Tuesday red hot, ranking third and fifth in OPS over the past two weeks. Colorado turns to Tanner Gordon, who comes off the DL.

He owns a 6.37 ERA this season and an atrocious 9.92 ERA in 16 1/3 innings at home, while Miami counters with Eury Perez, who's posted a 6.04 ERA across six road starts. 

With the Rockies' bullpen ranking 29th in home ERA and a 10.3 mph wind blowing out, there's a lot to like about the Over in Denver.

  • Time: 8:40 p.m. ET
  • How to watch: Rockies.TV, Marlins.TV

More MLB best bets for today

Pick Odds
Braves moneyline -150
Read analysis in our Cardinals vs. Braves predictions
Yankees moneyline -135
Read analysis in our Tigers vs. Yankees predictions
Twins moneyline -112
Read analysis in our Twins vs. Astros predictions

Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
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Joe Osborne Senior Betting Analyst Covers.com
Senior Betting Analyst

Joe is an industry veteran who loves the entertainment aspect of the sports betting industry. His opinions are always backed by data and he enjoys digging into the numbers and coming up with interesting nuggets to share with sports bettors.

Joe takes a high-energy and fun approach to covering his favorite sports which include the NFL, MLB, UFC, NBA and NHL, and there’s no bet type he loves more than an NFL six-point teaser. Joe is the host of our daily sports betting program, Before You Bet, while he also leads our weekly UFC show, P4P Picks, and our 'Covers on the Ground' series where he's covered many UFC, NFL and NBA games in person. A monthly highlight for Joe is conducting interviews with UFC legend Georges St-Pierre ahead of every UFC PPV.

Outside of his work at Covers, Joe has appeared on many top media brands including ESPN Radio, Mad Dog Sports Radio, VSIN, TSN, and SportsNet. He always recommends not reading too much into narratives when placing your bets as those factors are already cooked into the lines set by oddsmakers.

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