Jung said he would give it everything in the men’s 500m, and he certainly lived up to that promise.
The 19-year-old came out flying, and looked comfortable in the top three.
But as he rounded a corner he lost control, slipping off his edge and crashing in to the barrier.
“My blade collided with another guy and I couldn’t stay up,” he said. “I was feeling strong and I really went for it.
“I’m really disappointed but I know I couldn’t have given it much more.”
Dual Olympian Lockett settled at the back of the pack in her 1000m heat before pouncing from the outside, taking the lead with five laps to go.
But as the pack tightened she slipped back to third place, and wasn’t able to find space to move ahead.
“I’m disappointed but that’s the sport,” Lockett said. “Sometimes it’s your night and sometimes it’s not. Today it definitely wasn’t my night but I gave it my best.
“That was a really tough heat, to have the Chinese and the Koreans in my first race was hard, but that’s the way it goes.”
Her night got worse, when the judges gave her a penalty for impeding.
“I couldn’t feel the Chinese skater coming up on the inside,” Lockett said. “I didn’t mean to block her.”
The Brisbane-born skater now trains in Korea, and said the support she’d received these Games was incredible.
“I could see all the Aussie fans in the crowd and I feel so lucky to have shared this experience with all of them,” she said.
“Because I live and train in Korea it’s been extra special and overall I’m so happy with my second Olympic campaign.
“Now I just want to work extra hard and really see if I can improve.
“Hopefully I’ll be back in four year’s time.”
For Olympic debutant Jung, he said he will walk away from the Games feeling “proud” and with a tougher mindset.
“I’ve learnt how to perform on the big stage and I won’t feel so nervous at other competitions,” he said.
“It was amazing to meet so many different people and have the whole experience, I definitely want to come back next time.”
Jung will stay in Korea after the Closing Ceremony, to continue his preparations for the World Championships next month.
“I want to go and work on my technique a bit more and see if I can get a PB at Worlds,” he said.
“This whole experience has been amazing and I’m proud to be a Winter Olympian.”