This recap takes you through Marin Catholic’s 8-1 victory over Tamalpais High School in Kentfield. The Knights completed a two-game sweep after a lopsided 26-2 rout earlier in the week.
Left-hander Walker Untermann racked up 10 strikeouts in five two-hit innings. The Knights bolted to an early lead and never really looked back.
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Brothers Wade and Walker contributed all over the field in a true Kentfield showcase.
Game Flow in Kentfield: Marin Catholic Takes Control
In the opening frame, Marin Catholic struck first. James Stocker poked a leadoff single, and a throwing error allowed a run to score.
That set the tone for a win that kept the Knights ahead in a regional tilt. Fans from San Rafael, Larkspur, and Tiburon showed up for this one.
Tamalpais High showed a little life in the second inning. Anthony Murphy doubled to start the frame, and Trey Sasso doubled in a run to trim the deficit.
Marin Catholic built on that early momentum with smart situational hitting. Johnny Greco walked and stole a base, then Wade Untermann dropped down a bunt to set up Cooper Mitchell’s RBI single in the third.
Mitchell delivered the knockout blow with a two-run homer in the fourth off Tam reliever Henry Pearson. That pushed the lead to 5-1, and the Kentfield crowd kept the energy high with steady cheers from nearby families.
Pitching Performance: Walker Untermann Dominates
Walker Untermann anchored the night for Marin Catholic. He delivered a five-inning gem, stretching well after the prior 26-2 rout against Tam on Tuesday.
The southpaw looked every bit the workhorse, striking out the side in the first and limiting Tam to two hits. He issued just one walk and hit one batter.
He leaned on sharp breaking balls—especially his slider and curve—to keep hitters off balance. Walker set the tone early for a Knights rotation that looked locked in.
- Walker Untermann: 5 innings, 2 hits, 0 earned runs, 10 strikeouts. He faced four hitters over the minimum, with one walk and one hit by pitch.
- Cooper Benjamin: Closed with two scoreless innings and three strikeouts, finishing the night in style for Marin Catholic.
- Henry Pearson: Tamalpais High reliever who yielded Mitchell’s two-run homer in the fourth.
- Wade Untermann: Catcher who, along with Walker, kept the Knights’ defense steady and turned a key bunt into a run-scoring chance.
Offensive Highlights: Key Hits and Timely Runs
Marin Catholic’s offense benefited from timely hitting and a patient approach. Stocker’s leadoff single in the first inning was the spark, and an infield error allowed a run to score.
Cooper Mitchell added an RBI single in the third, flipping a close game into a more comfortable lead. In the fourth, Mitchell’s two-run homer extended the cushion and kept the Knights rolling.
Tamalpais High managed just three hits. Trey Sasso led Tam with two of those, including a multi-base hit in the second-inning rally.
Marin Catholic’s defense and Untermann’s pitching kept the Rams quiet for the rest of the night. The Knights’ defense, paired with a strong late-inning showing by Cooper Benjamin, sealed the decisive 8-1 win as fans from Mill Valley and beyond watched the rivalry tighten even further.
What This Remembers for Marin County Baseball
For Marin County, the 8-1 victory in Kentfield really cements the Knights as a legit contender in Bay Area prep baseball. Friars and Mustangs in nearby San Rafael and Novato are definitely paying attention.
The two-game sweep over Tamalpais High—always a crowd-pleaser with plenty of history—adds another wild chapter to a rivalry that runs from Tam’s Mill Valley campus all the way to Marin Catholic’s home field along Sir Francis Drake Boulevard.
- Marin Catholic’s pitching depth stands out, with the rotation moving through Centennial, Terra Linda, and San Rafael neighborhoods.
- The Untermann brothers do a bit of everything—pitching, base running, you name it—which really shows the Knights are ready for playoff-level games around Larkspur and Corte Madera.
Here is the source article for this story: Prep baseball: Marin Catholic caps off sweep of Tam
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