Third base projects as one of the San Francisco Giants’ clearest strengths heading into the 2026 season, defined by elite defense and a well-defined depth chart.

With Matt Chapman firmly entrenched as the everyday starter and Casey Schmitt providing coverage behind him, the position offers both reliability and continuity as the Giants continue shaping their competitive window.

Chapman remains the unquestioned anchor at the hot corner. In 2025, he appeared in 128 games and posted a .231/.340/.430 slash line with 21 home runs and 61 RBIs, according to Baseball Reference.

While his batting average dipped at times, Chapman’s overall value remained substantial as he finished the season worth roughly four wins above replacement, driven largely by his defense.

Widely regarded as one of the best defensive third basemen in the sport, Chapman once again graded out among the league leaders in defensive metrics, reinforcing his reputation as a game-changing presence at the position.

The Giants’ commitment to Chapman goes beyond on-field production. His extension back in 2024 signaled organizational stability at a time when San Francisco had struggled to land marquee free agents, including near-misses with Aaron Judge and Carlos Correa in recent years.

Chapman’s arrival -- and continued presence -- helped reestablish credibility around the franchise, playing a meaningful role in the Giants’ ability to later acquire impact talent such as Rafael Devers and Willy Adames, while also reinforcing a roster built on defense and versatility.

Behind Chapman, Casey Schmitt provides capable depth. While listed primarily as a backup at third base, Schmitt’s defensive versatility allows him to move across the infield as needed. His strong arm and athleticism make him a reliable option for spot starts, particularly on days when Chapman rests.

Though Schmitt is expected to see more consistent time at second base in 2026, his ability to handle third base preserves roster flexibility and safeguards the position against injury.

It is also worth noting that Devers brings extensive experience at third base, giving the Giants an emergency fallback option should circumstances require it. However, with Chapman locked in, third base remains one of the most settled spots on the roster.

Looking ahead to 2026, the outlook at third base is straightforward and encouraging. Chapman continues to provide elite defense and steady power, while internal depth ensures protection behind him.

In a roster filled with moving parts, third base stands as a rare constant -- and a foundational piece for the Giants’ present and future.

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