The Dolphins tallied five times in the top of the 13th and beat Meridian 6-1 Sunday night at Kirsch-Rooney Stadium.
Delgado advances to the junior college equivalent of a Super Regional.
The Dolphins scored one run on a Chris Eades infield single, and another on Cody Ducote fielder’s choice.
Third baseman Jordan Caillouet then broke the game open with a bases clearing triple.
Delgado pitchers allowed one run in 30 innings in three games of regional play.
The Dolphins advance to next weekend’s South Central District Championship at Crowder College in Neohso, Missouri.
Here are highlights from Sunday night’s game at Rags Scheuermann Field at Kirsch-Rooney Stadium.