logo
Where MLB scouts, college coaches, and top high school prospects meet.
☰
CART

TEAM PROFILE

Peninsula Mets - Elite
San Mateo, CA
15U
ALL SEASONS 2019 Baseball 2020 Summer 2020 Fall 2021 Spring 2021 Summer 2021 Fall 2022 Winter 2022 Summer 2022 College 2022 Fall 2023 Summer 2023 Fall Collegiate 2023 Winter 2024 Summer 2024 Fall 2024 Winter 2025 Summer 2026 Summer Showcases Scorebook Test Games
RECORD
W-L-T 4-4-0
WIN % 50
STATS
AVG RUN SCORED 4
AVG RUN ALLOWED 4.88
AVG RUN DIFFERENCE -0.88
RUNS SCORED 32
RUNS ALLOWED 39
RUNS DIFFERENCE -7
COACHES
Head Coach Joseph Seydel

This is not the official roster for a specific event. Visit the event schedule for the official roster.

The list below may include players from a previous season.

Peninsula Mets - Elite ROSTER
# Name Grad Year - HS High School State City Primary Pos College Committed To H/T Sec. Pos Weight HEIGHT
01   Will Tadlock 2029 Carlmont High CA Belmont C L/R 3B 140 5'7"
2   Jake Long 2029 JUNIPERO SERRA HIGH SCHOOL CA San Mateo LF R/R 2B 135 5'10"
3   Franco Koutoulas 2029 Carlmont High CA Belmont 2B R/R UTILITY 120 5'7"
4   Tyler Siengo 2028 JUNIPERO SERRA HIGH SCHOOL CA Foster City SS R/R 2B 135 5'8"
05   Robert Tadlock 2029 Carlmont High CA Belmont CF R/R 3B 125 5'6"
11   Harrison Murkins 2029 Palo Alto CA Palo Alto LHP L/L OF 145 5'9"
11   Oliver Connolly 2028 Sequoia High CA San Carlos UTILITY R/R C 150 5'10"
12   Lucas Ateya 2028 JUNIPERO SERRA HIGH SCHOOL CA Belmont RHP R/R 3B 145 6'
13   Dean Garibaldi 2029 JUNIPERO SERRA HIGH SCHOOL CA San Mateo 3B L/R RHP 170 6'3"
19   Dominic Mack 2029 Hillsdale High CA San Mateo LF R/R 110 5'5"
21   Lucca Williams 2029 Carlmont High CA BELMONT C L/R SS 130 5'8"
23   Kyle Oren 2029 San Mateo High S CA Foster City 2B R/R 1B 120 5'7"
24   Carter Seydel 2029 Hillsdale High CA San Mateo SS R/R 2B 125 5'5"
25   Diego Martinez 2029 juniperro serra CA South San Francisco 3B R/R SS 140 5'8"
27   Gavin Thompson 2029 JUNIPERO SERRA HIGH SCHOOL CA San Mateo CF R/L LHP 135 5'8"
27   Jackson Alvarez 2030 CA San Mateo MIF L/R CF 110 5'6"
29   Miguel Ceja Jr 2029 JUNIPERO SERRA HIGH SCHOOL CA San Mateo MIF R/R 3B 150 5'10"
Player
DOB
HEIGHT
WEIGHT
GPA
ACT
SAT
COMMIT
Twitter Instagram Facebook
( PLAYER )
( PARENT )
EVENTS
DATE EVENT DIVISION W-L-T AVG RS AVG RD AVG RA
2025-09-13 Five Tool California NorCal September Showdown 15U/16U 2-1-0 6.67 2 4.67
2025-09-27 Five Tool California NorCal Fall Championships 15U/16U 1-2-0 2.33 -3.33 5.67
2025-10-25 Five Tool California NorCal October Showdown 15U/16U 1-1-0 2.5 -1.5 4
GAMES
# EVENT TEAM VS TEAM
1 Five Tool California NorCal September Showdown Next Level Baseball 07 - 01 Peninsula Mets - Elite
2 Five Tool California NorCal September Showdown Santa Clara Young Guns 00 - 08 Peninsula Mets - Elite
3 Five Tool California NorCal September Showdown Peninsula Mets - Elite 11 - 07 Hit Club 2029
4 Five Tool California NorCal Fall Championships GamePrep Baseball Academy 15U 01 - 07 Peninsula Mets - Elite
5 Five Tool California NorCal Fall Championships BERC 24 - ATHAN ( BLACK ) 08 - 00 Peninsula Mets - Elite
6 Five Tool California NorCal Fall Championships BERC 24 - ATHAN ( CARDINAL ) 08 - 00 Peninsula Mets - Elite
7 Five Tool California NorCal October Showdown Hit Club 2029 00 - 05 Peninsula Mets - Elite
8 Five Tool California NorCal October Showdown Peninsula Mets - Elite 00 - 08 Next Level Baseball
PLAYER PROFILES
Will Tadlock Belmont  , CA 2029
Jake Long San Mateo  , CA 2029
Franco Koutoulas Belmont  , CA 2029
Tyler Siengo Foster City  , CA 2028
Robert Tadlock Belmont  , CA 2029
Harrison Murkins Palo Alto  , CA 2029
Oliver Connolly San Carlos  , CA 2028
Lucas Ateya Belmont  , CA 2028
Dean Garibaldi San Mateo  , CA 2029
Dominic Mack San Mateo  , CA 2029
Lucca Williams BELMONT  , CA 2029
Kyle Oren Foster City  , CA 2029
Carter Seydel San Mateo  , CA 2029
Diego Martinez South San Francisco  , CA 2029
Gavin Thompson San Mateo  , CA 2029
Jackson Alvarez San Mateo  , CA 2030
Miguel Ceja Jr San Mateo  , CA 2029