De Dios turned in a perfect 300 in one of four games he played in the senior graded (mixed) singles event of the meet organized by the Philippine Senior Bowlers (PSB).
His effort came on the day the standings in the event sponsored by Boysen, Philippine Sports Commission, Marvins Bar, 3D, Stronghold Steel Corp. and Union Galvasteel Corp. hardly changed hands.
Despite De Dios perfect game, he only had a series total of 844 to trail Elmer de Leon, Benny Tuazon and Boy Tagalag in the graded (mixed) event.