Luka Mijatovic Fires Off 4:11.91 To Break National High School 500 Free Record

by Sean Griffin 25

May 17th, 2025 High School, News, Records

2025 CIF State Swimming and Diving Championships

  • May 15-17, 2025
  • Clovis West High School — Fresno, California
  • SCY (25 Yards)
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Foothills sophomore Luka Mijatovic just broke the National High School (NHS) Record in the 500-yard freestyle with a time of 4:11.91 during the finals of the CIF State Swimming and Diving Championships, held at Clovis West High School in Fresno, California.

The previous record was set by Rex Maurer in May 2023, when the then-Loyola senior clocked 4:12.70 while recovering from the flu.

Maurer went on to break the American record in the event this past November with a scorching 4:04.45, placing him 2nd on the all-time list, only behind four-time Olympic champion and French native Leon Marchand, who posted a 4:02.31 to win the 2024 NCAA title.

Mijatovic’s time today, while a new NHS record, is not a personal best, as he has previously swum as fast as 4:10.96. He posted that time in April to break the 15-16 National Age Group (NAG) Record, but because it was achieved outside of high school competition, it was not eligible to break Maurer’s high school standard.

Mijatovic maintained a pace faster than his NAG swim through the first 450 yards before slightly fading on the final 50, splitting 25.07 compared to his record split of 24.11. From the 100 mark onward, he consistently stayed ahead of Maurer’s pace and never looked back. Mijatovic’s 200 split today of 1:38.12 was particularly notable. 

See the full splits comparison below, featuring Mijatovic’s new high school record, Maurer’s previous mark, and Mijatovic’s personal best.

Splits Comparison

Mijatovic’s New National High School Record Maurer’s Previous National High School Record Mijatovic’s Best Time & 15-16 National Age Group Record
50-yards 22.59 22.53 22.96
100-yards 24.77 (47.36) 25.07 (47.60) 25.02 (47.98)
150-yards 25.03 (1:12.39) 25.60 (1:13.20) 25.57 (1:13.55)
200-yards 25.73 (1:38.12) 25.80 (1:39.00) 25.87 (1:39.42)
250-yards 25.71 (2:03.83) 25.69 (2:04.69) 25.69 (2:05.11)
300-yards 25.38 (2:29.21) 25.82 (2:30.51) 25.50 (2:30.61)
350-yards 25.82 (2:55.03) 25.71 (2:56.22) 25.38 (2:55.99)
400-yards 25.98 (3:21.01) 25.97 (3:22.19) 25.50 (3:21.49)
450-yards 25.83 (3:46.84) 25.87 (3:48.06) 25.36 (3:46.85)
500-yards 25.07 (4:11.91) 24.64 (4:12.70) 24.11 (4:10.96)

The 16-year-old, who trains with the Pleasanton Seahawks outside of high school competition, is widely regarded as one of America’s most promising distance talents in generations. He has already broken a total of 15 NAG records, including the oldest one on the books last July, when he surpassed Jesse Vassallo’s 1500-meter freestyle mark that had stood since 1976.

Mijatovic only just turned 16 on April 22nd, giving him a full year to continue rewriting the 15–16 NAG record books in both short course yards and long course meters. With two more years of high school eligibility remaining—should he choose to compete—his 500 free record has the potential to dip under the 4:10 mark by the time he graduates.

Race Video

Courtesy: Parker Fleischman on YouTube / NFHS Network

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Spieker Pool Lap Swimmer
2 hours ago

I hope this means we SwimSwam readers will get more up-to-date pictures of him.

Patrick
2 hours ago

He does nothing off the walls. I like his LCM prospects.

EMG2020Transform
Reply to  Patrick
31 minutes ago

He already does matches the 4:02 guy in LCM xD

Washed up
2 hours ago

Kid is electric, reminder he is a fresh 16

TimeKeeper
2 hours ago

Has he committed to Texas yet?

47.84
Reply to  TimeKeeper
2 hours ago

Word around the street is that Luka has already committed but won’t announce for another 12-16 months.

Bobthebuilderrocks
Reply to  47.84
1 hour ago

Don’t mess with me like that

shay
3 hours ago

Racing the clock. .no competition but his own times. slightly off his PB(last 50) . .but Luka is on FIRE..knocking them records all down.. gotta get his LCM times(in relation) to match up with the obvious joy of his SCY races (double time kicking at the 25M mark?) wanna see him swimming with the likes of Bobby Finke, pacing young Luka. Again, OUTSTANDING!

47.84
Reply to  shay
3 hours ago

Pushing races out faster and faster as well which will serve him very well in the big pool with the big boys. Even if he fell off on the last split here, he’ll learn to keep the pace if he keeps this mindset imo. In today’s era it seems like the sit and pounce swimmers are being left behind.

Caleb
Reply to  shay
1 hour ago

His LC times are already better than his SC. You can see why, he doesnt even kick off the walls (at least in the 500) 😉

joannietheswimmer
4 hours ago

Imagine how fast he will go once he learns to stop driving his shoulders so deep.

Walsh-Madden-Grimes-Weinstein
5 hours ago

It’s time to brush up on the long course version.

MigBike
5 hours ago

CAN HE GET NIL MONEY GUARANTEED AND VERBALLY COMMIT TO TEXAS? COULD SEE MID TO HIGH SIX FIGURES I IMAGINE.

shay
Reply to  MigBike
3 hours ago

not seeing Texas. .Maybe Tenn, Florida? IDK, will UCLA men´s swim team be making a come back after 3 DECADES? lol