Added to Roster
Derek has been added to the Grand Rapids 2023-24 basketball roster.Derek has been added to the Grand Rapids 2023-24 basketball roster.Apps
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Derek Erdman
- Derek has been added to the Grand Rapids 2023-24 basketball roster.
Added to Roster
Derek has been added to the Grand Rapids 2022-23 basketball roster.Added to Roster
Derek has been added to the Grand Rapids 2019-20 basketball roster.
Derek Erdman's Bio
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Grand Rapids High School 
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