Washington Nationals at Arizona Diamondbacks odds, picks and predictions

Analyzing Monday’s Washington Nationals at Arizona Diamondbacks odds and lines, with MLB expert picks, predictions and best bets.

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The Washington Nationals (49-57) open a 3-game series on the road against the Arizona Diamondbacks (55-51) on Monday. First pitch from Chase Field is at 9:40 p.m. ET. Let’s analyze BetMGM Sportsbook’s lines around the Nationals vs. Diamondbacks odds and make our expert MLB picks and predictions for the best bets.

Season series: Diamondbacks lead 2-1

The Nationals have lost 4 of their last 6 games, but started off the road trip with a series win over the St. Louis Cardinals. They lost the finale on Sunday 4-3.

The Diamondbacks had a 4-game winning streak snapped on Sunday, losing to the Pittsburgh Pirates 6-5 in 10 innings. They are 10-4 in their last 14 games.

Nationals at Diamondbacks projected starters

LHP Mitchell Parker vs. LHP Jordan Montgomery

Parker (5-6, 4.34 ERA) makes his 19th start. He has a 1.21 WHIP, 2.3 BB/9 and 7.6 K/9 in 95 1/3 IP.

  • Last start: Loss, 3 IP, 6 ER, 7 H, 3 BB, 5 K in 12-3 home loss to San Diego Padres on Wednesday
  • Is 0-2 with 9.18 ERA in 4 July starts
  • First career start vs. Diamondbacks

Montgomery (7-5, 6.11 ERA) makes his 15th start. He has a 1.61 WHIP, 3.1 BB/9 and 6.0 K/9 in 70 2/3 IP.

  • Last start: Win, 5 IP, 1 ER, 3 H, 1 BB, 2 K in 6-2 road win over Kansas City Royals on Tuesday
  • Is 1-0 with 1.32 ERA in 2 career starts vs. Nationals

Who’s going yard? Here’s a breakdown of today’s best home run props with our top picks. Include the BetMGM bonus code SBWIRE to score a $1,500 first-bet offer.

Nationals at Diamondbacks odds

Provided by BetMGM Sportsbook; access USA TODAY Sports Scores and Sports Betting Odds hub for a full list. Lines last updated at 8:37 a.m. ET.

  • Moneyline (ML): Nationals +140 (bet $100 to win $140) | Diamondbacks -165 (bet $165 to win $100)
  • Run line (RL)/Against the spread (ATS): Nationals +1.5 (-140) | Diamondbacks -1.5 (+115)
  • Over/Under (O/U): 9 (O: -110 | U: -110)

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Nationals at Diamondbacks picks and predictions

Prediction

Diamondbacks 7, Nationals 4

Moneyline

The Diamondbacks are 16-8 in their last 24 games and are 7-0-1 in their last 8 series.

The Nationals have been streaky. They lost 5 in a row, then won 5 of 6, then lost 4 of 6. They are 26-30 on the road and 27-45 against teams with a winning record.

Arizona has won 4 of Montgomery’s 5 outings, but -165 odds don’t give you the value you want on a bet.

PASS.

Run line/Against the spread

Thirteen of the Diamondbacks’ last 16 wins have been by multiple runs. They have scored 5 or more runs in Montgomery’s last 5 starts, averaging 7.6 runs of support.

Nine of the Nationals’ last 10 losses have been by multiple runs.

BET DIAMONDBACKS -1.5 (+115).

Over/Under

The highest total in their 3 meetings this season has been 7. Four of Arizona’s last 6 games have had at least 9 total runs while 7 of Washington’s last 11 have reached at least 9 runs.

BET OVER 9 (-110).

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