By Mike Grossi, Globe correspondent

Cohasset senior guards Sam Richardson and Robert Jones didn’t want the end of their high school careers to come in the Division 4 South final. And because of their efforts in the second half, they won’t.

Richardson scored 12 points in the third quarter and Jones scored 13 in the fourth to help the Skippers overcome a six-point fourth quarter deficit en route to a 65-64 victory over Cathedral.

‘‘Robert and Sam became the players that they are supposed to be in the second half,’’ said Cohasset coach Bo Ruggiero. ‘‘Robert is our catalyst and he is the reason why I am a good coach.’’

The Skippers trailed 50-44 entering the final frame, but that is when Jones caught fire. He stroked four three-pointers and went 5 for 5 from the field. His biggest three came with 16 seconds remaining. Jones nailed a shot from the left wing while falling down to give the Skippers a 63-59 lead.

‘‘I thought I bricked that one,’’ said Jones (16 points, 5 assists). ‘‘We never gave up in this game and being a senior captain I knew I had to step up.

‘‘Today, my shots were just falling.’’

After Cathedral went on a 7-0 run that pushed its lead to 35-24 early in the third quarter, Richardson went to work. The team captain kept Cohasset in the game by hitting six of his 7 shots. Despite Richardson’s efforts, Cohasset was outscored by Cathedral, 22-20, in the quarter.

‘‘I didn’t have any other option than to play better,’’ said Richardson (18 points). ‘‘I played lousy in the first half and I really wanted to win.’’

Richardson also sunk two free throws with 8.2 seconds left to preserve the victory.
Cathedral was stung by free throw shooting, going 5 for 18.

The Panthers was led be Carlos Bermudez (17 points, 6 steals), Joe Green (23 points, 7 rebounds) and Kyle Lawyer (17 points, 7 rebounds).

Cohasset will play the winner of St. Marys-Winthrop in the Division 4 Final at the TD Garden on Tuesday at 2:30.