TANGIER: Italy’s Aron Zemmer produced a composed and clinical display to card a five-under-par opening round and claim the first-round lead at the Hilton Classic here on Monday. Zemmer’s compatriot Matteo Cristoni was just one shot behind, giving the Azzurri a strong early lead at the second event of the MENA Golf Tour’s Morocco Series at Al-Houara Golf Club in Tangier. Zemmer, who started from the 10th tee, carded seven birdies against two bogeys in strong, swirling wind that made scoring difficult throughout the field.