Foltyn set new Czech Records in the 50 free and 50 breast earlier this year, and though his 100 breast isn’t quite on the same level, it’s coming along.
The 19-year-old was on fire at the AP Race London International, shattering his personal best times in the men’s 400, 800 and 1500 free.
Previously ranked ninth, Lonsdale’s 2:14.27 rockets her up to fourth all-time in the girls’ 13-14 age group, pulling her within two seconds of the NAG record.
The 23-year-old blasted a time of 28.22 in the 50 breast, lowering his own Fijian Record of 28.54 and Glenn Snyders’ Oceanian Championship Record of 28.31.
Vallmitjana is the 10th-fastest 17-year-old in the 800 free in the U.S. club system over the past decade, now sitting 25th all-time in the 17-18 age group.
Roth dropped more than eight-tenths off her best time to clock 54.30, and she also claimed German titles in the 200 IM (2:12.47) and 400 IM (4:43.20).
Boylu, who turned 18 last month, put up a time of 1:46.53 in the 200 free, breaking Batur Unlu’s national record of 1:47.00 set in 2022.
The 19-year-old dropped a time of 54.45 at the Irish Open, lowering her own national record of 54.80 set at last summer’s European Junior Championships.