Andreas Toh, 24, had the second fastest time of the day with a 7:35.36.
If your 2.4km time is the fastest, you will be crowned Singapore's King and Queen of 2.4.
Mok's time was 13 seconds faster than the previous mark of 01:07:21 set by fellow Singaporean Soh Rui Yong at the San Jose Rock 'n' Roll Half Marathon on September 27, 2015.
The route is largely unchanged, and will start at Orchard Road, outside of Mandarin Gallery.
"The core idea is that consistent and cumulative mileage is required if one wishes to participate in long distance events." – Dr Nicholas Foo
The Nila Swim & Aquathlon and Nila Run will take place on Saturday, June 6 and Sunday, June 7, respectively. Registration is open and will close on May 17, 2015, 11.59 p.m.
Cleve Mu and Lynette Tung ran the fastest times for a male and female, clocking 7 minutes 55.69 seconds and 10:06.03 respectively.
Top Singaporean marathoner, Mok Ying Ren, will not defend his Southeast Asian Games gold in June on home soil as he is still returning to full fitness after injury.