Mariners vs Seals

The Mariners-Seals rivalry is a coastal clash between neighboring communities, fueled by short travel and overlapping fan bases. Bragging rights along the shore are on the line whenever the clubs meet.

Games tend to be low-scoring and tense, shaped by the marine air and the familiarity of two teams that know each other well.

The 2026 opener saw Monterey Bay edge Santa Cruz in a six-run shootout, an early highlight that set the tone for a competitive coastal summer.