Singapore, April 27 -- Royal Birkley 10,700 km, says the board, rather tantalisingly, just outside the Championship hole at The Serapong. On Sunday, with heavens opening up and high humidity testing the resilience of those on the course, Korea's Jeongwoo Ham covered that distance in nine draining hours by virtue of winning the $2 million Singapore Open. The International Series event, part of the Open Qualifying Series, offers two spots for the game's oldest Major which means Australian Cameron John, who was equally gritty and effective on the day and finished two strokes behind Ham, also booked his berth for the coveted competition. "Over the last two years, my golf hasn't been going too well, so this is a motivation for me. It tells me that if I prepare well, I too can win. Honestly, I was not thinking at all about winning. Even today, I was playing just so-so, and I thought I'd be 10th on the leaderboard. I really did well in my putts, but my iron shots were slightly lacking. But thankfully, my putting went well and it saved the flow of my rounds," the 31-year-old, a four-time winner on his native Korean PGA tour, remarked. The honours, however, well and truly belonged to Ham who secured a fine wire-to-wire win despite the testing conditions. Ham started the day with a four-shot lead over John and when the rain interruption occurred at around 11:47am local time, the leader group had completed seven holes with the Korean three ahead. The three-and-a-half hour break did little to break their rhythm or resolve with both Ham and John going bogey free on remaining holes. Pukhraj Singh Gill (71-70-72-67) and Gaganjeet Bhullar (67-68-72-73) finished as the best placed Indians at Tied-26th with 4-under 280. While Gill jumped from his Tied-45 overnight, Bhullar's game fell apart after he was T-5 on Saturday....