U.S. College sports transactions

DUQUESNE-Named Bob Derda associate athletic director for external relations.

INDIANA-PURDUE-INDIANAPOLIS-Signed Ron Hunter, men’s basketball coach, to a three-year contract extension, through the 2012-13 season.

MARSHALL-Announced the resignation of Jim Collins, defensive coordinator.

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PEPPERDINE-Announced sophomore G Michael Gerrity and sophomore F Chris Oakes have left the men’s basketball team.

TULANE-Announced sophomore men’s basketball G Ryan Williams will transfer.

VALPARAISO-Fired Mis Mrak, men’s soccer coach.