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Each week, the Prep Baseball California staff asks High School coaches from around the state to fill out our Player and Pitcher of the Week questionnaire. We select the awards with the input of these coaches, performances we witnessed and word of mouth. With all of the talent throughout Northern and Southern California, it can be difficult to just pinpoint one pitcher and positional player from NorCal and SoCal each week so our 'Diamond Notes' articles will serve the purpose of highlighting the top performances that were submitted by coaches.

Click here for the California Player and Pitcher of the Week.

WEEK 4 DIAMOND NOTES

+ Matt Manzo, UTL/RHP (Arcadia, 2026)

Matt Manzo had a strong two-game stretch against Pasadena HS, going 5-for-7 with two doubles, two runs, five RBIs, and a stolen base. On the mound, he earned the win with three scoreless innings, allowing just one hit, while striking out seven, and had no walks. On the year, he’s hitting .500 (13-for-26) with three doubles, a triple, a home run, 14 RBIs, and eight runs scored.

+ John Teti, C/OF (Bishop’ODowd, 2025)

John Teti played a key role in a comeback win against Windsor High, leading off the seventh inning with a double. He went 6-for-7 with three doubles, a triple, and two runs scored in his two games this week. Already committed to Princeton for football, he's having a stellar season thus far on the diamond, batting .545 with a Home run.

+ Griffin Vorhaus, RHP/1B (Novato, 2026)

Griffin Vorhaus had everything working on the rubber and at the plate for Novato. In his Tuesday start against Archie Williams, he threw a complete-game shutout, striking out nine while allowing just four hits. In Friday’s finale, he crushed a home run to extend a lead for Novato and overall finished 3-for-5 with a home run, a double, two RBIs, two runs scored, and a walk.

+ JP Harmon, RHP (Novato, 2026)

Harmon was dominant on the mound for Novato, striking out 15 over six innings while allowing just two hits and one walk in a win over Archie Williams. Consistently sat 90-93 mph with his FB during the outing. He also came through at the plate, with a two-out, bases-loaded triple to give the Hornets a lead over Archie Williams. Season Pitching Stats: 19 IP, 32 K, 1.1 ERA.

+ Jack Pezzolo, LHP/OF (Cardinal Newman, 2025)

Pezzolo pitched great on the bump against Ukiah, striking out 13 over five innings while allowing just two hits, one walk, and one earned run. He also made an impact at the plate, going 2-for-3 with a double and four RBIs. Against Valley Christian, he went 2-for-3 and scored the game’s only run in a 1-0 victory. Across both games, he finished 4-for-6 with a double, four RBIs, and two runs scored. Season Pitching Stats: 1-0, 12 IP, 26 K, 3 BB, 2 ER.

+ Tristan Whittle, RHP (Temescal Canyon, 2025)

Tristan Whittle was simply dominant when he threw a no-hitter with 16 strikeouts against San Jacinto, setting a new Temescal Canyon school record for strikeouts in a single game. On the season, he is now 3-0 with 33 strikeouts, and an ERA standing at 2.21 in 19 innings pitched.

+ Hugo Marks, RHP/3B (Washington (Fremont), 2026)

Hugo Marks contributed this week on both sides of the ball. At the plate, he went 2-for-3 with a double against Livermore and 1-for-3 against Foothill. In addition to his 2-hit performance against Livermore, he got the start on the mound and pitched six innings, allowed only one hit, struck out six, and walked two.

+ Landis Nguyen, OF (Madison, 2027)

Landis Nguyen, Madison's leadoff hitter, had an impressive week, going 5-for-8 with a double, 2 RBIs, and 2 runs scored. He was also 3-for-4 in a key win against La Jolla. For the season, Landis is hitting .588 in 17 at-bats, with 10 hits, 12 total bases, and 3 runs scored.

+ Fausto Aguirre, RHP/2B (El Modena, 2025)

Fausto Aguirre delivered a solid performance on the mound against Villa Park, pitching 6 innings, allowing 6 hits, 2 runs, and he struck out a batter. Offensively, he went 1-for-3 in the game. On the season, he has now thrown 19 innings with a 1.47 ERA, 9 strikeouts, and a save.

+ Jake Fletcher, C (Justin-Slena, 2025)

Jake Fletcher had a big week, hitting a first-inning grand slam to lead Justin-Siena to a dominant win over rival St. Patrick-St. Vincent. He finished 3-7 with a HR, a double, 7 RBIs, and a run scored, bringing his season total to an impressive 20 RBIs through 9 games. 

+ Lucas Schermer, SS (Mira Costa, 2025)

Lucas Schermer delivered a standout performance in the two wins against Torrance and Palos Verdes. He went an impressive 5-for-6 at the plate, where he scored 2 runs, drove in 5 RBIs, and stole 3 bases in the victories.

+ Garrett Jacobs, RHP (Mira Costa, 2026)

Garrett Jacobs was sharp in his start against Palos Verdes, throwing a complete game to lead Mira Costa to a win. He allowed just 4 hits, gave up 3 runs, and walked 1, while striking out 14 batters. This marks his third complete game of the season in 2025.

Coaches, do you have a Player of the Week or top performer you'd like to nominate? Be sure to check your email inbox each Sunday night and Monday morning for our request. Simply send weekly details/stats to our scouting staff by Monday.

Upcoming Events

Showcase	State	Date	Location
Central California Rising Stars ID (2029-2030 Grads)	CA	03/23	Ventura College - Ventura, CA
Inland Empire Rising Stars ID (2029-2030 Grads)	CA	03/30	Corona High School - Corona, CA
Los Angeles Rising Stars ID (2029-2030 Grads)	CA	04/27	O'Malley Field - Sepulveda Basin, CA
2025 Future Games Tryout: Fullerton	CA	05/31	Fullerton College
2025 Future Games Tryout: Los Angeles	CA	05/31	Loyola Marymount University
2025 Future Games Tryout: Malibu	CA	05/31	Pepperdine University - Malibu, CA
2025 ProCase - West	CA	06/01	Loyola Marymount University - Los Angeles, CA
2025 Future Games Tryout: Central California	CA	06/07	Antelope Valley College - Lancaster, CA
2025 Future Games Tryout: Northern California	CA	06/14	Consumnes River College - Sacramento, CA

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