Tabotabo and Agustin Chang of Malaysia won the doubles crown in the 10-under division over topseed Vince Salas and Eric Olivares of Manila, 1-6, 6-2, 10-4.
Today, Tabotabo, who is supported by Cebu vice-governor Greg Sanchez, Accord Bank and Tavo's Sports, will fight for the singles title in the 10-under division against Mark Escares.
Tabotabo scored a big upset over topseed Salas in the semifinals yesterday, 6-1, 7-6, 7-5.
Lagman, for his part, also booked a finals ticket in the 12-under division after winning over Calvin Canlas, 6-2, 6-0, in the semifinals yesterday.
He will meet Deo Talatayod for the crown.