The final chapter of a hard-fought weekend series unfolds this Sunday afternoon at Nationals Park as the San Diego Padres face off against the Washington Nationals. After splitting the first two contests of the series—featuring a high-scoring Padres victory on Friday followed by a dominant bounce-back from the Nationals on Saturday—both squads are hungry for a series victory. For sports bettors looking to close out May with a profit, the 1:35 PM EDT rubber match offers a fascinating statistical puzzle in the pitching department.

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The Pitching Matchup: Griffin Canning vs. Zack Littell

Sunday’s series finale features a battle between two right-handed starters looking to settle down after some rocky stretches to start the 2026 campaign.

The San Diego Padres hand the ball to righty Griffin Canning. It has been a rough ride for Canning so far this year, as he enters the contest with an 0-3 record, a bloated 7.54 ERA, and a 1.54 WHIP. Canning has struggled with keeping the ball in the yard and navigating deep into games. However, backed by a potent San Diego offense, Canning represents a classic bounce-back candidate if he can establish his secondary pitches early and avoid high-leverage jams.

The Washington Nationals counter with veteran right-hander Zack Littell. Littell has been a durable piece for Washington, sitting at an even 4-4 record with a 5.23 ERA and a 1.39 WHIP. While his surface-level ERA is higher than the Nationals would prefer, Littell has shown excellent command and an ability to rack up groundouts when his sinker is working. Facing a top-heavy Padres lineup, Littell’s main objective will be limiting free passes.

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Best MLB Bets for 5/31/26

• Best Moneyline Bet: San Diego Padres Despite Griffin Canning’s early-season struggles, the Padres present tremendous bounce-back value to take the rubber match on the road. San Diego’s offense features elite, game-changing star power like Fernando Tatis Jr. and Manny Machado, both of whom match up well against Littell’s pitch profile. Expect the Padres’ bats to jump out to an early lead, giving Canning enough run support to secure his first victory of the season.
• Best Over/Under Bet: Over 9 Total Runs Everything points toward a high-scoring affair in Washington this Sunday. Neither starting pitcher enters the game with particularly sharp form, as both Canning (7.54 ERA) and Littell (5.23 ERA) have shown a vulnerability to giving up hard contact. With warm afternoon air at Nationals Park and two lineups that have already proven they can put up crooked numbers in this series, betting the over is the sharpest play.
• Best Team Prop Bet: Padres First 5 Innings Over Runs San Diego’s aggressive lineup thrives on hitting right-handed pitching that attacks the strike zone. Because Zack Littell tends to throw a high volume of strikes, the Padres are primed to generate plenty of traffic on the basepaths early. Targeting San Diego to clear their team total in the first five innings isolates their potent offense before the bullpens get involved.