The Mumbai teenager recovered from losing the first game to beat 39-year-old Corren 5-11, 11-8, 11-9, 12-10 in 72 minutes — the longest match of the day — to earn a surprise place in the quarter-finals of the PSA Challenger 10 squash event at the Melbourne Sports & Aquatic Centre.
Mangaonkar, ranked outside the world top 100, now faces his toughest test in Campbell Grayson, the top seed and defending champion from New Zealand who took just 28 minutes to see off South Australian Justin Beard 11-4, 11-7, 11-5.
Third seed Zac Alexander continued to lead home hopes by defeating Kiwi Evan Williams 11-9, 11-7, 11-1. Bidding to bring the title back into Australian hands for the first time since he won it in 2010, 24-year-old Alexander now faces Malaysian Ivan Yuen after the No 7 seed beat Australian Joshua Larkin 13-11, 10-12, 11-9, 11-6.
'Look' how the Sheena Bora case has taken a toll on Indrani Mukerjea
Photos: Katrina Kaif, Parineeti Chopra, Shilpa Shetty's movie outing in Juhu
Birthday special: 14 Bollywood actors who made it big on TV
Photos: Vaani Kapoor, Poonam Pandey, Sana Khan at fashion event
Photos: Rishi Kapoor, wife Neetu, daughter Riddhima at book launch