Seven days after overturning an 8-shot deficit to world No. 1 Dustin Johnson to win the WGC-HSBC Champions, Rose came from 2 behind in the final round in Antalya to claim an 11th European Tour title at the £5.3 million event.
"I've put myself in a predicament about next week, I didn't fully anticipate being so close to Tommy," Rose said. "But I just know that I need to go and play well in Dubai.
"That's been my mentality from the outset and it's not going to change, but it's exciting to be within touching distance.
"[Playing] four in a row is not something that I do. I feel like by the fourth week you're hoping to play well, not knowing you can play well, especially travelling through all these time zones.
"I'm banking on trying to freshen up and continue my good form and momentum in Dubai. I'm focusing on a win there and Tommy's going to have to play some good golf next week and in Dubai; if he does then hats off to him."
Rose holed from 10 feet on the 18th for his third birdie in the last four holes and then saw playing partner Colsaerts, who had birdied the 15th, 16th and 17th, unable to make it four in a row from two feet closer.
Fleetwood finished in a tie for 23rd and saw his lead of more than 1 million points over Rose reduced to just 135,000 with two events remaining, although Fleetwood is contesting both while Rose sits out the upcoming Nedbank Golf Challenge in Sun City.