NEW YORK (WABC) -- Jessie Malone's heart won't be in question when she lines up for the 2024 TCS NYC Marathon. Malone, who is running in the event for the first time, had a very scary moment after going into atrial fibrillation just a year ago. I was just biking back from my friend's house to my apartment, which is something I do all the time," recalled Malone. "And my watch flagged that my resting heart rate was over 160. So I kind of was just like, that's so bizarre.