Ronald Dalmacio Breaks Hours-Old National Age Group Record in 100 Meter Back

Braden Keith
by Braden Keith 7

April 19th, 2015 Club, News

Ronald Dalmacio of Rose Bowl Aquatics in Pasadena, California, has swum a 1:08.13 in the 100 long course meters backstroke to break the hours-old record set a day earlier on the other side of the country.

While neither will have an opportunity to be officially ratified until the USA Swimming offices re-open on Monday, unofficially Dalmacio’s swim broke the 10 & under National Age Group Record of 1:09.07 that Joshua Zuchowski did in Daytona Beach, Florida on Saturday.

Officially, the record coming into the weekend was a 1:09.89 that Destin Lasco did in 2012.

That swim is Dalmacio’s first of the 2015 long course season, and beat his previous best of 1:13.07. The improvement was inevitable, though, after Dalmacio broke the National Age Group Record in the 100 yard backstroke at least three times during the short course season (59.76, 59.05, and a 58.62 last weekend).

Though no results are available from Zuchowski’s meet, his coach John Kjaerulff tells us that he swam a 1:08.66 in a time trial on Sunday to get under the 1:09 barrier as well.

The two are developing a bit of a cross-continent rivalry akin to the one between Lasco and his fellow New Jerseyan Vinny Marciano, who have been trading records for the last four years but rarely raced despite living in the same state (they were in different LSC’s).


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7 years ago

The record was broke at a regular BRW meet. No start wedges.

jonathan zuchowski
7 years ago

The best thing they have is IMX.

bobo gigi
7 years ago

Congrats to Mr Dalmacio again.
All these NAG records every week! 🙄

Too bad all these kids don’t swim against each other at least one time a year.
You have LCM junior nationals in the summer and had ( 😥 ) SCY junior nationals in December with usually boys and girls aged between 13 and 18. USA swimming should create SCY and LCM age group national championships for the 10 and under category and for the 11/12 category. It would be funny to watch the best US kids compete for a national title.

Coach Stevie
7 years ago

Who used a backstroke wedge? Because in Daytona they didn’t have the backstroke far west was there a backstroke wedge

Reply to  Coach Stevie
7 years ago

No backstroke start wedges @ Far Western Championships

7 years ago

Jeez! The record is broken by 1.76 seconds on 1 weekend in 2 swims! My head is spinning!

I know MOST of this a result of talent + hard work, but I wonder if ANY of it is due to the new backstroke wedges improving their starts? Backstroke starts are tough for 10&U kids in my coaching experience.

Congrat’s Mr Dalmacio!

Jonathan zuchowski
Reply to  Danjohnrob
7 years ago

Did they use foot wedges at far west and this meet?

About Braden Keith

Braden Keith

Braden Keith is the Editor-in-Chief and a co-founder/co-owner of He first got his feet wet by building The Swimmers' Circle beginning in January 2010, and now comes to SwimSwam to use that experience and help build a new leader in the sport of swimming. Aside from his life on the InterWet, …

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