Sixteen years of dominance was erased in an instant yesterday at the Reggie Lewis Center as the Dragons toppled the Tigers.

“O’Bryant has always been there,’’ said Latin Academy coach Brian Leussler. “So it’s a big accomplishment, I really owe it to the team. A lot of dedicated kids who do indoor, outdoor, who have been running since seventh grade — they deserve it this year.’’

Latin Academy earned points in all 12 events to finish with an impressive 148. O’Bryant, which won six events, stayed relatively close with 109 points. West Roxbury finished a distant third with 32 points. Dorchester (21) and Hyde Park (15) rounded out the top five.

As much as yesterday’s outcome might have seemed like an upset, it had been expected — O’Bryant graduated an excellent senior class, and Latin Academy’s talented youth had set the Dragons on an upward trajectory. Still, Latin Academy junior Eva Macdonald said she stressed to her team the need to keep level heads.

“I don’t like getting cocky, I like keeping the team as humble as possible because then we go and do our best,’’ Macdonald said. “I pretty much just told the team, ‘You’ve done great: this is your time to beat your own records.’ ’’

Macdonald took her own advice, posting a time of 6 minutes and 21 seconds to win the mile, as well as coming from behind on the anchor leg of the 4 x 400 to give the Dragons their first win in the event in four years. Britney Firmin, who won the 600 (1:53.70) also ran in the 4 x 400.

O’Bryant’s Nicolette Gordon (long jump and 300) and Adrienne Thornton (1,000 and shot put) each took a pair of event wins for the Tigers.

The Latin Academy boys ended a similar O’Bryant streak, which sat at seven, winning with 69.5 points. South Boston was second with 56 points. West Roxbury (39), Brighton (36), and O’Bryant (34) rounded out the top five.

Three Dragons (Robert Finch, Chheyfou Hung, and Tucker Gaye) won events, demonstrating the team’s depth.

Gaye, whose 6-foot-2-inch high jump beat Brighton’s Luis Nunez (6-0), surpassed his personal best by 3 inches. He managed this, he said, by practicing everything but his jump.

“Right now I try to stay away from jumping,’’ he said “Usually I’ll go home and I’ll just stretch out, or go out and play basketball.

“I try not to jump until I’m in here, because that’s the only place I really want to jump. I love competition.’’

South Boston’s William Arrington won the 600 (1:30.80) and teammate Luis Roman won the 1,000 (2:55.80). South Boston also won the 4 x 400.