Foster Griffin vs. Jesus Luzardo: Phillies at Nationals Prediction and Best Bet for June 22

The Philadelphia Phillies (42-35) and Washington Nationals (40-38) open a four-game series at Nationals Park on Monday evening in what shapes up as one of the tighter NL East matchups on the June schedule. Both teams come in with winning records but sit well outside of first place in one of baseball’s most competitive divisions. The Phillies hold a slight edge in the standings — second in the NL East — while Washington is fourth, five games back. First pitch is at 6:45 p.m. ET at Nationals Park with Foster Griffin (7-2, 3.32 ERA) starting for Washington and Jesus Luzardo on the mound for Philadelphia.

The Nationals have been one of the surprises of the first half, playing better than the market expected coming into 2026. Foster Griffin has been a big reason why, emerging as a legitimate frontline arm after years of being considered a depth option. The Phillies have been consistent but have not separated themselves from the NL East pack the way many anticipated.

Nationals Open as Surprising Favorites at Home

Monday’s market has Washington as the narrow moneyline favorite at home, priced at -115 to -120, with Philadelphia available at -105 to +100 depending on the book. The run line has the Phillies at -1.5 (+143 to +151) and the Nationals at +1.5 (-168 to -184). The total has been set at 10 runs, with the over and under both around -110. That is a high total for a game featuring two quality starters, which suggests the market anticipates heavy late-game offensive production regardless of what happens in the early innings. Watch the Live MLB Odds for any movement before the first pitch.

Foster Griffin Is Having a Breakout Season Worth Backing

Foster Griffin’s 7-2 record and 3.32 ERA represent the most compelling storyline in this game. Griffin, who has bounced between the bullpen and the rotation over his career, has found a home in Washington’s starting five this year and responded with consistently excellent starts. His approach is built on commanding the strike zone with a two-seam fastball that generates heavy ground ball contact, and he has been particularly effective against right-handed hitters who chase his cutter away. The Nationals are 8-4 in his 12 starts this season, which is no coincidence.

Philadelphia will counter with Jesus Luzardo, who has been a reliable if unspectacular presence in their rotation. Luzardo has the raw stuff to dominate — a plus slider and a high-velocity fastball — but his consistency has wavered throughout the first half. When his command is sharp, he can go toe-to-toe with any starter in the NL East. When he is off, he tends to walk batters and fall behind in counts, which leads to inflated pitch counts and early exits. The Phillies are 42-35, but they have leaned heavily on their bullpen more than they would like, which makes Luzardo’s ability to go six or seven innings an important variable tonight.

The Phillies lineup features Bryce Harper as the anchor, and when Harper is locked in — as he has been for stretches this season — Philadelphia has one of the most dangerous middle-of-the-order combinations in the league. Trea Turner and Nick Castellanos have also contributed offensively, and the lineup is deep enough to grind out runs late if Luzardo can keep the game close through five innings. A betting calculator can help you figure out the right stake size for a matchup like this one where the line is nearly even.

Washington’s Strengths and the Case for the Nationals

The Nationals’ 40-38 record represents genuine progress for a franchise that has been rebuilding for the better part of two seasons. Their young lineup has started to produce, and their home performance this year has been quietly strong. Griffin pitching at Nationals Park — where the run environment skews toward pitchers on days with comfortable mid-June weather — is a favorable setup. Washington has won 53 percent of their games as an underdog this season, which indicates this team knows how to punch above its weight when given the opportunity.

One useful data point: Philadelphia has gone just 6-19 (31.6 percent) in their games as an underdog this year. When the Phillies are not the favorite, they have a poor record covering the spread. That makes Washington at -115 or -120 a reasonable play despite Philly’s slightly better record. The FanDuel promo code and the Caesars promo code both offer solid welcome bonuses for bettors looking to play this NL East series opener.

Prediction and Best Bet

Foster Griffin pitching at home against a Philadelphia team that struggles as road underdogs is a compelling enough edge. The Nationals have been competitive all season, and their starting pitching has been better than most expected heading into 2026.

• Prediction: Washington Nationals 5, Philadelphia Phillies 3
• Best Bet: Washington Nationals moneyline (-120)

Griffin at home is a legitimate play at -120. His 7-2 record and 3.32 ERA are not statistical noise — they reflect a pitcher who knows how to win games. Luzardo is capable of competing, but his command inconsistency creates opportunities for a Washington offense that is willing to work counts. Back the Nationals in this series opener.