'I just couldn't watch, ' she told The Mail on Sunday last night.
Chris Froome gained over one minute on Primoz Roglic to move up into third in general classification, while Dumoulin recorded the fastest time to secure second, as well as the stage win. It is just overwhelming. "I'm really sick of it, it doesn't make sense".
Former ski jumper Roglic tried to drop Thomas several times in the last climb up to the Col d'Aubisque but the Team Sky rider kept his composure and controlled the situation throughout.
Dumoulin revealed he was on edge for most of the day after he couldn't find his world championship time trial skinsuit, specially designed for the Dutchman to reduce aerodynamic drag.
A win for Thomas would be his first after previous bests finishes of 15th in 2015 and 2016 when he rode in support of Froome.
He has led the way for much of the 2018 race and traditionally the final stage in Paris is a procession for the holder of the yellow jersey.
Speaking of Saturday's stage, he said: "I felt good, I felt strong, I felt really good actually". 'I'm just so relieved and happy.
"It's very nice to win today, what can I say".
"I felt good. I felt strong".
Geraint Thomas will become the first Welsh rider to win the Tour de France
Thomas finished third in the 20th stage, 14 seconds behind, but that was more than enough to protect the lead of more than two minutes he had at the start of the day.
Thomas will become the third British victor of the race, joining Sir Bradley Wiggins and Chris Froome, with the Team Sky trio winning six of the last seven editions of the race.
Victory for Thomas would give Sky the luxury of having two riders legitimately vying for the Tour title next year.
An all-around rider who began his career on the track, Thomas helped Britain to gold medals in team pursuit at the 2008 and 2012 Olympics before turning his full attention to road racing.
Unknown to the Team Sky rider, Sara had flown in from Cardiff to greet him on the finish line of the penultimate stage of the gruelling 21-day race for an emotional reunion.
It marked the first time in 12 years the Tour passed through the Basque Country, and fans waving the region's red, green and white flags lined the entire route in front of the area's traditional half-timbered houses. Froome slipped from third overall to fourth at 2m 37s, with Slovenian Primoz Roglic (Lotto-Jumbo), the victor of Friday's 200km 19th stage from Lourdes to Laruns, leapfrogging Froome into third.
Eurosport is the home of the Tour de France.
Craddock has personally donated US$100 per stage since fracturing his scapula on stage one to the Greater Houston Cycling Foundation - and encouraged others to match his donations.