[5] In 2015, Ang ran 14.44s to set the national record for the 110m hurdles, which he bettered the same year during the 2015 SEA Games (14.38s).

[6] In 2017, he clocked 14.19s at the Thailand Open—after putting his medical studies at NUS on hold—but the record was not ratified.

[3] In 2019, he broke the national mark thrice: twice during the Singapore Open (14.27s and 14.26s) and once during the Asian Athletics Championships in Doha (14.25s).

[9] On 1 April 2023, he rewrote his record after winning the Hong Kong Athletics Series 3 competition with a timing of 13.90s.

[13] Ang also holds the national record for indoor 60m hurdles (8.16s);[14] his personal best for the same event outdoors is 7.22s.