Ronald Dalmacio Busts 23.65 50 Back, Becomes Youngest Ever Under 24.0

12-year-old Ronald Dalmacio of Rose Bowl Aquatics had an outstanding weekend at the Southern California JO’s, the highlight being his performance in the 50 back final. After going 24-low leading off his team’s 200 medley relay and then doing so again in prelims, Dalmacio unleashed a 23.65, destroying his old best time which happens to be the 11-12 NAG record.

Dalmacio’s old record was a 24.11– he lowered that by nearly half a second. With that swim, he also becomes the youngest swimmer ever, at just 12 years old, to break the 24-second barrier in the 50 back.

He also swam the 50, 100, and 200 free along with the 100 and 200 back last weekend at JO’s. He holds the 11-12 NAG records in both the 100 and 200 backstrokes, and was just off his bests in both races, going 51.42 in the 100 and 1:52.94 in the 200.

In the freestyles, he went 21.86 in the 50, 48.28 in the 100, and 1:46.17 in the 200. That moves Dalmacio up to #3 in the 50 free (just .01 behind #2 Michael Andrew and .08 behind #1 Vinny Marciano), #4 in the 100 free, and #3 in the 200 free all-time for the 11-12 age group.

Dalmacio also anchored Rose Bowl’s 11-12 200 free relay with a 21.63 as well as their 400 free relay with a 48.09.

**Full meet results on Meet Mobile under ‘SCS 14 and Under SC JO Championship’

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About Karl Ortegon

Karl Ortegon

Karl Ortegon studied sociology at Wesleyan University in Middletown, CT, graduating in May of 2018. He began swimming on a club team in first grade and swam four years for Wesleyan.

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