Transom won the 50 free, too, while fellow sophomore Isabelle Odgers won all three of her individual events on Saturday in Los Angeles.
Louise Hansson is a multistroke star who leads a USC team primed to move up from last year’s 12th place finish.
Kylie Powers is a big in-state get for the Aggies #7 recruiting class.
Owen Kao (above) and Isabelle Odgers led Irvine Novaquatics to the combined team title at the 2018 Junior National Championships – in their own pool.
The fifth and final day of prelims will feature the 200 IM, 50 free, women’s 1500, and men’s 800.
Will Grant is the top seed heading into the men’s 100 back final in Irvine.
Photos from Day 4 prelims at 2018 Speedo Junior National Championships.
Alexei Sancov, 100 free and 100 fly runner-up, and Jake Magahey, 400 free champ, will face off in the men’s 200 free.
Stewart dropped the #2 100 fly time in the United States this year, coming within a second of her best time for the first time since early 2017.
Other notable swims included a Team China podium sweep in the women’s 400 free, and another triple-event session for Katinka Hosszu.
20-year-old Yufei Zhang edged out Katinka Hosszu, who swam the 200 back and 400 IM in addition to the 200 fly Friday night.
Anicka Delgado took the top seed in two events at CIF-SS prelims in Riverside.
The 2018 CIF-Southern Section psych sheets are out for all four divisions. Ella Ristic (pictured) is seeded #1 in the 100 free and #2 in the 200 free.
Sophomore Ella Ristic came up big for Santa Margarita, claiming the 200 free (1:46.98) and the 100 free (50.05).
Samantha Pearson (above) from Foothill High School swam lifetime bests in the 200 IM and 100 back.