Simon Thornton parred the first playoff hole on Sunday to top Tjaart van der Walt and win the Najeti Hotels et Golfs Open.
Thornton and van der Walt, who each held a share of the lead at the end of the third round with Baptiste Chapellan, each carded a 1-under 70 during their final round to finish 72 holes at Aa Saint Omer Golf Club at 5-under-par 279.
Chapellan struggled to a 6-over 77 on Sunday to fall into a tie for 15th place at 2-over 286.
Seve Benson (70) finished in third at 4-under, while Robert Dinwiddie (70) captured fourth at minus-2.
Pelle Edberg (71) and Chris Lloyd (72) shared fifth at 1-under 283.
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