Prom Meesawat's final-round 67 earned him a bye into the last 16 of the World Super 6 in Perth on Saturday.
The Thai finished two shots clear of the chasing pack on 12 under following the third and final round of stroke play, handing him an advantage in the match play that follows on Sunday.
Thorbjorn Olesen, Sean Crocker and Lucas Herbert closed on 10 under, while Dimitrios Papadatos, Brad Kennedy, Sam Horsfield and Yusaku Miyazato also secured top-eight spots, guaranteeing a seeded berth in the second round of match play.
Overnight leaders Brett Rumford, the defending champion, and Lee Westwood endured miserable days at Lake Karrinyup Country Club, with each carding a six-over-par 78 to miss out on the final day's play.
Top eight seeds confirmed.— The European Tour (@EuropeanTour) February 10, 2018
"I did well for the last two days, I only missed a couple of shots to put myself in the top position," said Meesawat.
"Very happy to finish first but still a lot of golf for and I think it's going to be good fun.
"It [a win] means a lot. I'm going to earn my European Tour card and it's going to be the first win for me on the European Tour.
"I'm just going to go out and have fun, concentrate with my game."
A play-off was needed to reduce a field of nine tied players down to eight, leaving 24 in total for the match-play phase.
Anthony Quayle was the man to miss out, as Meesawat's compatriot Kiradech Aphibarnrat held his nerve to edge through.
26 de mayo 2018
|Real Madrid´s Carvajal limps out of final to prompt Spain fears|
|Broughton and Catalans continue fine form|
|Tearful Salah off injured in Champions League final|
|Leinster complete historic double by beating Scarlets|
|Lions snatch win from Stormers, Brumbies stun Bulls|
|Bale sits out warm-up ahead of Champions League final|
|Cavaliers´ Kevin Love ruled out of game seven|
|Pavlyuchenkova saves two match points to win Strasbourg epic|
|Benzema comparisons have made me stronger, says Giroud|
|Pakistan´s victory charge frustrated by Buttler and Bess|
|Aston Villa 0 Fulham 1: Cairney secures Premier League return|
|Isco preferred to Bale in Champions League final|
|Castres hold off Racing to book Top 14 final berth|
|McIlroy recovers late to share Wentworth lead with Molinari|
|Mancini perfect for new-look Italy, says Baselli|
|F1 Raceweek: Ricciardo set to vanquish Monaco demons|
|Goretzka confident over World Cup fitness|
|No pain, just cramp - Farrell allays injury fears|
|Sri Lanka to work with ICC after pitch-doctoring reports|
|Champions League Diary: Madrid fan´s brass act, Liverpool lap it up|
|FIFA dampens Platini´s ban reversal hopes|
|Germany unsure over Boateng´s full-training return date|
|Wyles bows out in style as Saracens regain Premiership crown|
|Fucsovics brushes aside Gojowczyk to claim first ATP crown|
|Not in my lifetime - Shilton will ´never forgive´ Maradona|
|Gutsy Thiem clinches Lyon title to build Roland Garros momentum|
|Martinez accuses Real Sociedad of blocking Manchester City move|
|LeBron focused on treatment, sleep ahead of game seven|
|Froome felt in control despite ´brutal´ Giro|
|Nadal to face lucky loser Bolelli after Dolgopolov withdrawal|
|Iniesta welcomed by thousands of fans at Vissel Kobe presentation|
|Monaco crash a ´brutal lesson´ for Verstappen|
|Ricciardo seals Monaco pole as Verstappen misses qualifying|
|Neuer will not be a World Cup back-up - Low|
|Froome on the brink of history with Giro glory all-but secure|
|No reward for Riske as Larsson claims Nuremberg Cup|
|Andreolli expects ´extraordinary motivator´ Emery to succeed at Arsenal|
|Verstappen misses Q1 after FP3 crash|
|Griezmann ´a gift´ at €100m, says Dugarry|
|Highlanders grind down Reds, Chiefs hold off Waratahs|
|Injured Bacsinszky pulls out of French Open|
|Panthers tame Dragons to earn share of NRL lead|
|David Luiz tips Derby candidate Lampard to thrive|
|Number one in professionalism, honesty and humility - Langer lays down Australia targets|
|Relegated Las Palmas snap up AEK title mastermind Jimenez|
|Neymar reiterates desire to work with Guardiola|
|Imagine what I´ll be like if we win! Carragher leads raucous Salah chanting|
|LeBron carried us home, as usual - Lue lauds star man as Cavs force decider|
|Liverpool know Madrid are favourites, says Morientes|
|Liverpool chairman Werner promises Klopp transfer funds|
|Pakistan´s Babar ruled out of England series|
|Gudjohnsen tips Madrid to beat Liverpool, despite star trio|
|It does something to you - Van Dijk reveals why he joined Liverpool|
|Gleyber Torres makes history as Yankees beat Angels|
|MLS Review: LA Galaxy edge San Jose Earthquakes in California Clasico|
|Real Madrid v Liverpool: Who will win the Champions League final?|
|LeBron James saves Cavaliers from elimination|
|Peru FA president weighs in on Paolo Guerrero´s drugs ban appeal|
|Jurgen Klopp calls for ´big balls´ from Liverpool|
|Kevin Love ruled out of Game 6 for Cavaliers after concussion|
|Prescott says Cowboys don´t need top receiver|
|MLB extends Roberto Osuna´s administrative leave for third time|
|Rose shoots 64 to take Fort Worth lead|
|James Harden not worried about shooting struggles|
|Green: Spurs star Leonard wants to stay in San Antonio|
|Griezmann could help Barcelona a lot, says Umtiti|
|Moyano hat-trick helps Jaguares sink 14-man Sharks|
|Mbappe rejected Real Madrid for PSG - Monaco´s Vasilyev|
|Rovers rock Warriors as Wolves bite back to see off Hull|
|Thiem through in Lyon as Fucsovics closes in on historic first title|