Xin Wuku appeared on Season 2 of American Gladiators in 2008. He was a gladiator dubbed "Zen" because that would be what his name would sound like.
On American Ninja Warrior, Xin was a fierce competitor. He moved easily through the Quintuple Steps, but his momentum was slowed down on the Rope Swing, when he took three tries to reach the other side, resetting twice. He then moved quickly through the next three obstacles with barely a hitch, but became fatigued and barely missed his first try on the Warped Wall. However, on his second try, he was able to scamper up and become the second finisher, 27.3 seconds faster than the previous finisher, Daniel Devane. Unfortunately, it wasn't fast enough to qualify for the Semi-Finals.