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Instead of moping - he set himself a home challenge to smash instead.
So after the lockdown started, friends sent him a video of a man in France who ran the distance of a marathon on his balcony.
Hattle thought he'd have a crack at something similar.
"I just enjoy a challenge and pushing myself and I decided I'd give it a go," he said.
Hattle said he had a few ideas of how to keep occupied during the remaining lockdown period, but first he would rest and let his body bounce back from the 50km.
"A few people have sent pics of 24-hour running challenges, but I don't know," he said.
"I'll just see how I feel."
Hattle said it was important people put the lockdown into perspective.
"Yeah, it's a tough time we're going through but it's not really that big of a problem when you compare it to problems other people have in the world," he said.
From race heartache to real challenge
In a post on Facebook, Hattle further explained his run and the motivation behind it.
"Hopefully this offers a bit of inspiration through these tough times," he said.
"Going back a year and a half, when I was pretty new to trail running, I decided to sign up for the Northburn 100 mile. I don't know why, but my thinking was if I'm going to run 100 miles I might as well pick the one with the most hills.
"I spent the next six months running around in the bush when I had a chance with my buddy.
"Race day came and because of many things, lack of experience, nutrition, no poles, mental stamina, lack of sleep etc, I made it to about 81km before calling it quits."
He said knowing he had chosen to quit "sucked" and he questioned whether he could have just pushed through and finished.
"It only took a couple days of race recovery before I had told myself I had to come back and complete it and get that buckle," he wrote.
"It's weird how your brain works, you know how tough it is, yet you want to put yourself in that situation again.
"Over the next year I continued my training in preparation to run the race again.
"Three weeks out from race day I was ready to go, I didn't want to have to wait three weeks.
"Then this Covid-19 situation began to unfold."
The night before Hattle was due to travel to the South Island the event was called off.
"I was overcome by this sinking feeling. I was gutted.
"My chance to complete what I had started was gone. Preparing for another year physically and mentally sounded daunting.
"Some of the problems you face may seem so big when you are faced with them, but if you take a step back and look around some problems aren't as big as you initially thought.
"Take care over the coming weeks - maybe achieve some of those goals you have floating around in your head."