Added to Roster
Markus has been added to the Riverhead 2023-24 basketball roster.Markus has been added to the Riverhead 2023-24 basketball roster.Apps
MaxPrepsFollow your favorite high school teams and players
MP Stats for iPadStat keeping for basketball teams
Pro Photography
Watch
Video CenterSee top plays & highlights of the best high school sports
Live Streams & ReplaysGet access to live game streams and full replays for 8000+ schools
Content Contributors
Tickets
Markus Grigg
Markus has been added to the Riverhead 2023-24 basketball roster.Added to Roster
Markus has been added to the Riverhead 2022-23 basketball roster.Markus Grigg's Bio
View Full Bio
Recent Basketball Games
Riverhead High School 700 Harrison AveRiverhead, NY 11901-2787
NYSPHSAA, Official MaxPreps partnerPartnerships:
© 2026 MaxPreps, Inc.
MaxPreps is a registered trademark of MaxPreps, Inc.