This weekend, Mr Fabian Pwi will lace up his running shoes in an attempt to outrun "zombies" to the finish line at the Padang.
In his quest to survive the 5km route - dodging people slathered in ghoulish make-up playing the undead - he will navigate a maze, be dunked in a "blood pit" of gunk and crawl under fences.
At the finish line, a reward awaits: the Apocalypse Party, where survivors-turn-clubgoers mingle over food and alcohol, and a DJ spins tunes till late.
This zombie race, Run For Your Lives Asia, is one of at least seven uniquely themed runs that have popped up in Singapore over the past year.
"The race brings to life the world of zombie games and television shows, so it is a novelty for me," says Mr Pwi, 31, an SAF regular, who also enjoys video game Left 4 Dead and television series The Walking Dead.
Running the race would also require frequent sprinting, a change from endurance races such as the 42km Standard Chartered Marathon, which the avid runner has also participated in.
Run For Your Lives Asia started in the United States in 2011 and is holding its first overseas offshoot in Singapore tomorrow.
It has drawn about 6,000 participants so far, mainly runners aged between 17 and 35.
Compared to running conventional marathons or on the gym treadmill, joining such a run staves off fitness boredom, says Ms Agnes Nee, marketing manager of Action X.
The event production company bought over the zombie run franchise, originally conceived in the US to celebrate Halloween, and will follow with similar runs in Taipei in March, and Kaohsiung, Taiwan, in May.
Adds Ms Nee, who is in her 30s: "It is not about watching the time or how fast you go, but keeping fit in a fun way and enjoying the experience."
Other new themed runs include night-time rave events such as the Illumi Run and an upcoming Electric Run; races strewn with rigorous obstacles such as the Lion Dash and Commando Challenge, and The Color Run, where participants are doused with different coloured powders through a 5km route.