He broke a RBC Senior Island record in qualifying for the final of the boys 17/18 years 100m breast-stroke in 1 min 6.21 sec, finishing ninth in the final in the slightly slower time of 1.06.35.
JJ Gallichan was fifth 15 year-old boy in the 400 free, with his 4 min 12.85 sec, while fellow AIB Tiger Samuel Fernandes was 15th overall 16 year-old boy in in 4.15.87.
The championships finish on 1 August.
