The New York City Marathon brought out tons of participants ... including some recognizable reality stars who got real about their race day experiences.
"Bachelor in Paradise" star Joe Amabile shared a photo of his bib and bag hours before the race ... ready to hurtle through the concrete jungle to the finish line -- though it appears it didn't totally go to plan.
Amabile shared another photo from after he started running ... and, it looks like he either cut his foot pretty bad or a blister popped open -- 'cause he's bleeding heavily through his sock.