However, dozens of riders were slowed up by the crash and found themselves desperately trying to chase down a reduced peloton charging towards the finish line at Pau on another sweltering day in the southwest of France.
Sprinters such as Jasper Philipsen lost key lead-out teammates like Mathieu van der Poel and it led to a disorganised run to the finish line with no teams able to tee up their fast men as they would have wanted to.
Co-captain of the Decathlon team alongside Paul Seixas, Kooij emerged from the chaos with an irresistible surge to the line to accomplish his pre-tour aim to “win at least one sprint stage”.
“It was quite an easy day until the final, so then you know it will be hectic in this first sprint of the Tour,” he said.
“Everyone is still really eager and I just managed to find my way.
“I did it on my own in the end and I found the right wheel and I just wanted to have a chance to sprint today.
“When I saw the line I just went as hard as I could.”
The Dutchman had never ridden at the Tour before as his previous team, Visma-Lease a Bike, did not bring a sprinter to the race as they concentrated solely on their overall contender Jonas Vingegaard.
And he got off to a poor start with new team Decathlon CMA CGM as he battled a long illness at the beginning of the year.
Lone breakaway
Traeen managed to finish in a group 14 seconds behind the winner, alongside reigning champion Tadej Pogacar and other overall contenders such as Vingegaard, Olympic champion Remco Evenepoel and French teenage sensation Seixas.
He was helped by Dane Vingegaard’s Visma team motoring on after the crash to try to ensure their team leader, who is a two-time Tour winner, did not lose any vital seconds to his main rivals.
The Norwegian still leads the Tour by 28sec from American Sean Quinn, with Czech Mathias Vacek third at 3min 50sec.
“To be honest, I don’t know that much, suddenly I was on the ground,” said Traeen about his crash.
“I went to a corner and then I was there [on the ground], and then luckily I had the Visma train coming past and brought us back to the group.”
He said he had “a small wound on my knee but nothing really serious”.
It was a fairly typical sprint stage until the finale, with a doomed breakaway easily chased down before the business end.
Baptiste Veistroffer said before the stage began that he was determined to get away in a break and sure enough, he was true to his word.
From the chequered flag, he shot off down the road, but perhaps to his surprise, no one else joined him.
It meant that the Frenchman spent 144km out alone at the front of the race before the sprinters’ teams reeled him in with 14km left to ride.
“I enjoyed it a huge amount, I was smiling the whole day,” said Veistroffer.
“The encouragement, the fans on the Tour are something that you really have to honour.”
After that it was over to the sprinters’ teams, but they were unable to control the run-in.
– AFP