The Bahrain-based player set a championship course record of 70 and compiled a gross total score of 143.
Yaseen Le Falher of France, last year’s Muscat Open winner, finished four strokes behind on 147, while Bahrain's Nasser Yacoub - representing Bahrain Golf Club - claimed the third position with a score of 153.
Five-time Muscat Open winner, Azaan al Rumhy, bounced back on day two to finish in fourth place.
Hobday said after the win, “It was a great tournament and it was very well run indeed. I’m extremely happy to win the Muscat Open the first time I participated. If I remain an amateur golfer next season, I would love to come back and defend my title next year.”
The nett category was a tightly contested competition with some good scores.
Tam Burns of Al Mouj Golf Club won the overall crown with a nett score of 138.
Salim al Harthy of Ghala Golf Club beat Ras al Hamra Golf Club’s own Brett Merrel to second place on countback with a net score of 140.
Fahad al Kitani won the junior best gross prize. A total of 16 overseas players joined 70 of Oman’s top golfers to compete in the 44th edition of Oman’s longest running open golf championship.
Mundhir al Barwani, the chairman of the Oman Golf Committee, gave away the prizes.