LAHORE - Aisam-ul-Haq Qureshi of Pakistan had a marathon day in Belo Horizonte, Brazil ATP Challenger Championship as he was fully stretched to a three setter in the singles second round by British player Jonathan Marray before coming home with a 6-7(8), 6-4, 6-4 victory in more than 150 minutes. He will face third seed Leonardo Mayer of Argentina in the quarter-final. Later in the day, Aisam and Santiago Gonzalez of Mexico were equally made to work hard by Carlos Salamanca of Columbia & Julio Cesar Campozano of Ecuador in the pre-quarter final of the doubles which they won by 7-5, 6-4 and will now face Andrew Coelho of Australia & Jonathan Marray of UK in the quarter final.