Among April 22-24 schedule changes for sanctioned, touring and special Dirt Late Model events:

Hoker Trucking: The weekend's Hoker Trucking Series in Iowa at Webster City's Hamiton County Speedway and Mason City Motor Speedway were rained out; the Mason City event was rescheduled for Aug. 21 while a new date is being considered for Hamilton County.

ULMS: The weekend's Zimmer's United Late Model Series events at Dog Hollow Speedway in Strongstown, Pa., and Sharon Speedway in Hartford, Ohio, were rained out; Dog Hollow may be made up while Sharon's event won't be rescheduled.