He stunned fans and doubters alike by running 30 sand marathons in 30 days last year, breaking a Guinness World Record in the process.
But Spencer Matthews admitted his past hedonistic days indulging in alcohol and causing chaos as the villain in Made In Chelsea often left his parents disappointed.
The TV star, 36, told the Mirror that his mother and father, entrepeneur David Matthews and artist Jane Spencer Parker, were not always best pleased with his antics during his younger years.
He said: ‘There were certainly times in my life where I was pretty far from where I wanted to be and there was a bit of disappointment behind my parents’ eyes from time to time.
‘But, completing the 30 marathons in the desert changed that and a lot in my life.’
Spencer achieved the extaordinary feat in Jordan last August and already has plans to do seven Ironman-style triathlons across seven continents.

Spencer Matthews has admitted there was ‘disappointment behind his parents’ eyes’ over his past reality TV work and says he aimed to get their approval by running 30 marathons in 30 days

His hedonistic days indulging in alcohol and causing chaos as the villain in Made In Chelsea upset his parents at times

The TV star, 36, said his parents, entrepeneur David Matthews and artist Jane Spencer Parker, were not always best pleased with his antics
He said: ‘Quite a lot of self-loathing that I carried around with me, and quite a lot of shame, just evaporated after the marathons. It’s a very different way of feeling.’
The entrepeneur was well known for his party boy lifestyle but gave up alcohol in 2018, the same year he married Vogue Williams.
He first developed a problem when working as a city trader, drinking five to ten pints every day before taking clients out.
The hard-partying habits made him an attractive prospect for the Made In Chelsea casting team – and he more than delivered in terms of living the playboy lifestyle.
He has since devoted himself to fitness, both through his long-distance running and business ventures which have seen him launch CleanCo non-alcoholic spirits.
Last week, Spencer revealed that his wife, who he met in 2017, took a dim view of his chances of completing the record-breaking task.

Many of Made In Chelsea’s plotlines revolved around Spencer’s wild antics, making him a star

Last week, he revealed that his wife Vogue Williams, who he met in 2017, took a dim view of his chances of completing the record-breaking task

One of the first things Vogue, who was at home with their three young children ‘holding the fort’, said to him on his return was: ‘Are you ever going to do anything like this again?’
‘Oh my wife was of the opinion, “Well, that will kill you”,’ he admits. ‘My mum wasn’t very happy with me. Nobody was happy, really.’
One of the first things Vogue, who was at home with their three young children ‘holding the fort’ as he was off testing the limits of human endurance, said to him on his return was: ‘Are you ever going to do anything like this again?
‘I said, Well, I’d love to do something like this every year for the next ten years.
‘It was the most amazing thing I’ve done in my life.
‘Vogue said, What?!! Then she kindly requested that the next one doesn’t take 30 days, so I’m going to try to keep it to 20-something.’