He is often among the last to cross the finish line at marathons.
But 83-year-old Chan Meng Hui is showing no signs of stopping - not until he has 100 finisher medals and certificates under his belt.
Undoubtedly Singapore's oldest marathoner, he has completed 94 such races since he took up running at 50 years old.
Said the sprightly man who will turn 84 in January: "I will stop running the full 42.195km race only after my 100th marathon.
"I'll still take part in the shorter distances. Hopefully, then it'll be my turn to wait at the finish line instead of the other way round."
When he does hang up his running shoes, it will mark the end of what has been an extraordinary ambition, one which has seen him pound pavements in countries such as the United States, Switzerland and Thailand.
Chan already has his final six marathons firmly in his sights.
After next Sunday's Standard Chartered Marathon Singapore (SCMS), he will end the year by taking part in his running club MacRitchie Runners 25's annual ultramarathon.
Next year, he plans to take part in one marathon in Hong Kong, another in New Zealand and the Sundown Marathon, before hitting No.100 - fittingly - at the next edition of the SCMS.
"I've never missed an edition. It feels like the right marathon to be No.100," said Chan whose son and grandson will be cheering for him at the finish line next week.