The Royals snapped a two-game losing streak and improved to 16-8 in June.
The top photos from the 2016-2017 athletic year at Greenfield High School.
The surging Diamondbacks scored two in the eighth and one in the ninth to force extra innings.
The Gators (52-19) posted the eighth sweep in the 15 years of the best-of-three finals format, and first since 2013.
Matt Strahm (2-5) gave up five runs and six hits in 3 2/3 innings for the Royals.