Seattle Mariners @ Philadelphia Phillies Player Props, Picks and Predictions - 8/20/2025 1:05 PM EDT

We have your Seattle Mariners @ Philadelphia Phillies prop betting and game preview needs covered as the Seattle Mariners hit the road to face the Philadelphia Phillies.

Seattle Mariners @ Philadelphia Phillies Pick

Best Moneyline Odds: Philadelphia Phillies -143 on BetRivers
Best Spread Odds: Philadelphia Phillies -1.0 at +100 on BetRivers
Best Total Odds: Over 8.5 at -120 on ESPN BET

Game Info

Date: 2025-08-20
Time: 1:05 PM EDT
Location: Citizens Bank Park, Philadelphia, PA
TV: -

Seattle Mariners @ Philadelphia Phillies Preview

The Philadelphia Phillies (73-53) are set to host the Seattle Mariners (68-59) in the final game of a three-game series at Citizens Bank Park. The Phillies enter this matchup on a three-game winning streak, having won six of their last ten contests, and are currently atop the NL East. Their offense has been particularly potent recently, averaging 7.3 runs per game with a .305 batting average over their last five outings.

The Seattle Mariners, on the other hand, are looking to snap a four-game losing streak and have gone 4-6 in their last ten games. Despite their recent struggles, they remain competitive in the AL West, just 1.5 games behind the Houston Astros. The Mariners boast a powerful lineup, ranking third in the league with 178 home runs this season, led by Cal Raleigh's league-high 47 homers.

On the mound, the Phillies will send left-hander Jesús Luzardo (11-6, 4.21 ERA) to the hill. Luzardo has been solid this season, and his team holds a 12-8 record when he starts as the moneyline favorite. For the Mariners, right-hander Luis Castillo (8-6, 3.48 ERA) will get the start. Castillo is coming off a challenging outing where he allowed six earned runs over four innings against the Mets, and the Mariners' pitching staff has struggled recently with an 8.12 ERA over their last five games.

Historic Head-to-Head Stats and Analysis

This game marks the third and final contest of a three-game series between the Mariners and Phillies. The Phillies have taken the first two games, winning 12-7 on Monday and 6-4 on Tuesday. The Mariners are looking to avoid a sweep and salvage a win from this road trip. The recent losses have extended Seattle's overall losing streak to four games, with the Phillies' offense proving to be a significant challenge. In their most recent matchup, despite Eugenio Suárez's clutch two-run double to tie the game in the seventh, J.T. Realmuto responded with a two-run homer in the eighth to secure the Phillies' 6-4 victory.

Pick: Philadelphia Phillies Moneyline

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The Philadelphia Phillies are the recommended pick on the moneyline for this matchup. They are currently on a three-game winning streak and have shown strong offensive production, averaging 7.3 runs per game over their last five. The Mariners, conversely, are on a four-game losing streak and their pitching has been struggling, giving up an 8.12 ERA in their last five games. The Phillies are favored to win with a moneyline of -143 on BetRivers, and sharp money analysis indicates a 56.64% win probability for the Phillies. With Jesús Luzardo on the mound, who has a favorable record when his team is the moneyline favorite, and the Phillies' strong home record of 38-21, they are well-positioned to complete the series sweep.

Top Player Prop Picks

J.T. Realmuto (Philadelphia Phillies) Over 0.5 Hits

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J.T. Realmuto has been consistently hitting the ball well, making the over 0.5 hits a strong play. He has hit the over in 80% of his last five games and 80% of his last ten games. Looking at his performance against the Mariners this season, he has hit the over in 100% of his two appearances, averaging an impressive 2.5 hits per game. When playing at Citizens Bank Park this season, Realmuto has hit the over in 66.67% of his games. You can find the best odds for J.T. Realmuto Over 0.5 Hits at -245 on BetRivers.

Bryce Harper (Philadelphia Phillies) Over 0.5 Hits

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Bryce Harper is another Phillies batter with excellent recent form, making the over 0.5 hits a compelling pick. He has hit the over in 80% of his last five games and 80% of his last ten games. Against the Mariners this season, Harper has hit the over in 100% of his two games, averaging 2.0 hits. His home performance this season is also strong, hitting the over in 71.11% of his games at Citizens Bank Park. The best odds for Bryce Harper Over 0.5 Hits are -260 on FanDuel.

Jesús Luzardo (Philadelphia Phillies) Over 6.5 Pitcher Strikeouts

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Jesús Luzardo has demonstrated a solid strikeout ability, and the matchup against the Mariners bodes well for him to hit the over on his strikeout prop. He has hit the over in 60% of his last five starts and 70% of his last ten starts, averaging 6.1 strikeouts over his last ten. At home this season, Luzardo has hit the over in 58.33% of his starts, averaging 6.42 strikeouts. The Seattle Mariners' offense ranks 28th in the league in strikeout rate, indicating they are prone to striking out. The best odds for Jesús Luzardo Over 6.5 Pitcher Strikeouts are -126 on FanDuel.