Fifth seed Jeet Kishore Das suffered an upset when he was beaten 2-3 by Sourya Prasad Patnaik in a pre-quarterfinal match of the 5th Pradeep Sen Memorial All-Orissa Open Snooker Tournament at Cuttack Club, Cuttack today. A fine break of 64 by Jeet failed to save him going down to Sourya in their exciting third-round clash that went to full distance. In another pre-quarterfinal encounter, Subhranshu Kar faced stiff fight against Amit Lath before romping home by 3-2 frames. Khalid Sultan, Satyam Patnaik and Sandipani Mishra posted wins to advance to the round of 16. Results: Second round: Khalid Sultan bt Jenson Gerge 3-1 (61-37, 38-45, 57-8, 72-49): Satyam Patnaik bt Ashutosh Padhee 3-0 (55-44, 64-31, 47-12): Sandipani Mishra bt Satyajit Mohanty 3-0 (58-13, 44-26, 60-51). Pre-quarters: Subhranshu Kar bt Amit Lath 3-2 (31-50, 37-48, 51-44, 83-40, 55-41): Sourya Prasad Patnaik bt Jeet Kishore Das 3-2 (19-80, 39-50, 47-29, 65-40, 48-22)