San Antonio: Matt Jones has made the best start of six Australians trying to secure a place in the US Masters by winning the Texas Open.
Jones fired an opening round three-under 69 to sit in a tie for 17th, three shots behind the leader Kim Si-woo.
The 38-year-old's only Masters appearance came in 2014 and he missed the cut after rounds of 74 and 78.
Rod Pampling and Aaron Baddeley made steady starts to finish one under, but Curtis Luck (73), John Senden (74) and Cameron David (74) struggled at TPC San Antonio.
Si-woo reeled off five birdies in six-holes en route to the first-round lead.
The South Korean carded six-under-par 66 for a one-stroke advantage over Mexican Abraham Ancer, Venezuelan Jhonattan Vegas and Americans Chris Stroud and JT Poston.
Kim's place at next week's Masters is already assured but the four players behind him need to win on Sunday to punch the final ticket to the first major championship of the year.
Rickie Fowler and Jordan Spieth, among only a handful of the big names using the Texas Open to tune-up for the Masters, both shot 68 on an unusually benign day in a typically windy location.
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