Still as a youth athlete, he won the gold medal at the 2015 NACAC Championships although in rather unusual circumstances. His rivals having much better personal bests than Rivera, who only managed to jump 4.70 metres, entered the competition much higher but none of them actually cleared the bar. This left him as the sole athlete to record a valid jump and the gold medalist. This victory earned him a spot at the 2015 World Championships in Beijing where the opening height of 5.25 m, however, was beyond Rivera's capabilities.
His personal best in the event is 4.70 metres set in San José in 2015.
Nat n rivera campe n de salto sin p rtigas propias