The Worthing 10km is a fully road closed course that is flat as a pancake with sea views the entire route. The Worthing 10k starts and finishes outside Worthing Lido, on Marine Parade, Worthing (BN11 3PX) and is 1 lap. For a Worthing 10k google course map click here
As you can see from below the elevation of the Worthing 10k is flat.