Putting the home team on the scoreboard first was Prachaya Hong-in in the 18th minute, with Ney Fabiano doubling Phuket's lead on 25 minutes with his second goal in two matches.
However, the visitors were awarded a penalty late in the 2nd half, and their 185-centimeter- tall striker Darryl Roberts from Trinidad and Tobago (#30) did not miss the back of the net.
But Phuket comfortably held on to the advantougous scoreline, looking to seal the win on a number of chances and persisting through some counter attacks through 5 minutes of added time.
Rightly called, coverboy of this week's Match Guide, Rattapon Auttawong was named man-of-the-match.
The Rocket lived up to his name, making Roi Et's midfielders and defenders earn their keep. Roi Et are still in 14th place.
Phuket (25 points) shot up the Yamaha League-1 standings to 5th place following siam Navy's (27 points, 3rd place) 3-1 win over Pattaya United (19 points, 12th place) later on Sunday (June 8).
Phuket FC's next game is a Toyota League Cup Round 3 (16 teams) match on Wednesday (June 11) against Thai Premier League side Bangkok Glass.
Man of the match Rattapon Attawong - The Rocket