Poland's Swiatek, who has dropped to fifth in the world rankings, has so far failed to win a title this year despite a few deep runs in tournaments, including the Australian Open semi-finals.
Collins fired 32 winners and converted six of eight break points while Swiatek, who had won the tournament three times in the last four years, made 22 unforced errors.
As for conditions, she dismissed concerns about the unpredictable spring weather in Paris.
Images from Day 10 of the 2025 French Open at Roland Garros in Paris on Tuesday.
Defending champion Krejcikova edges Dolehide to move into third round at Wimbledon 2025
Iga Swiatek continued her bid for a fifth French Open title when the Polish fifth seed overcame Romania's Jaqueline Cristian to reach the Roland Garros fourth round.
Polish world number two Iga Swiatek has been given extra security after a spectator at the Miami Open verbally abused the five-times major champion during a practice session last weekend, the BBC reported on Wednesday.
Elena Rybakina stayed unbeaten at the WTA Finals in Riyadh with a 6-4, 6-4 victory over second alternate Ekaterina Alexandrova on Wednesday after Madison Keys withdrew from their final round robin meeting with illness and Mirra Andreeva was not fit to play.
Twice defending champion Jessica Pegula crashed out of the Canadian Open after losing to Anastasija Sevastova 3-6, 6-4, 6-1 in the third round on Friday, while six-times major winner Iga Swiatek marched on with a dominant 6-2, 6-2 win over Eva Lys.
Coco Gauff dismantled defending champion Iga Swiatek 6-1, 6-1 on Thursday with a ruthless display to storm into her first Madrid Open final, where she will face world number one Aryna Sabalenka for the WTA 1000 title.
IMAGES from the French Open played at Roland Garros, in Paris, France, on Sunday.
IMAGES from the French Open matches played at Roland Garros on Wednesday.
While off-court battles over pay and governance rumbled on, opportunities were scarce beyond the duopoly at the top of the men's game, leaving Djokovic to provide the year's standout moments for the chasing pack.
Aryna Sabalenka exemplified consistency in 2025 and arrives for the November 1-8 tournament having retained her US Open title in September, after finishing runner-up to Madison Keys at the Australian Open and Coco Gauff at Roland Garros.
'I've seen many players bounce balls in frustration, and frankly, I didn't expect such harsh judgements.'
Philippine wildcard Alexandra Eala pulled off the biggest win of her young career with a stunning upset of Polish world number two Iga Swiatek.
Twice champion Iga Swiatek walloped Czech Karolina Muchova in straight sets to reach the Indian Wells quarter-finals on Tuesday.
Swiatek said she made far too many mistakes against Keys on Rod Laver Arena and hoped to draw lessons from it.
Defending champion Iga Swiatek crushed Dayana Yastremska 6-0, 6-2 and 2023 champion Elena Rybakina powered past Britain's Katie Boulter 6-0, 7-5 to reach the fourth round of Indian Wells on Sunday in displays of dominance.
Three-times defending champion Iga Swiatek was bundled out of the Qatar Open by Latvian Jelena Ostapenko, who beat the Polish second seed 6-3, 6-1 in the semi-finals on Friday to set up a final showdown with American Amanda Anisimova.
Swift and Kelce, whose announcement earned more than 18 million Instagram likes, headlined the A-listers in the crowd at the men's final last year, where Jannik Sinner ensured a "cruel summer" for another Taylor -- Fritz -- in a three-set defeat.
Images from Day 7 of the 2025 Australian Open at Melbourne Park on Saturday.
The Pole accepted a one-month ban that ended on December 4 after accounting for time already served.
Coco Gauff was given a solid workout by former champion Sofia Kenin but continued her lengthy winning streak
Slovenia will face hosts India on Saturday, and a win will earn the former a ticket to next year's Billie Jean King Cup Qualifiers.
Images from Day 5 of the 2025 Australian Open at Melbourne Park on Thursday.
Italians Sara Errani and Andrea Vavassori retained their mixed doubles title at the US Open on Wednesday, overcoming Iga Swiatek and Casper Ruud in the final.
Elena Rybakina rallied from a set down to beat Russian fourth seed Ekaterina Alexandrova 3-6, 6-0, 6-2 and win the Ningbo Open title on Sunday, as her late surge to reach next month's WTA Finals gained momentum.
Madison Keys blasted her way into the Australian Open semi-finals for a third time as the American continues her bid for a first Grand Slam title.
Aryna Sabalenka overwhelmed Paula Badosa 6-4, 6-2 with a impressive display of raw power to reach her third successive Australian Open final on Thursday.
Iga Swiatek tested positive in an out-of-competition sample in August but the ITIA accepted that it was caused by contamination of her medication melatonin.
Madison Keys said she would be wary about being too aggressive against Iga Swiatek.
Poland's Iga Swiatek will play in the Billie Jean King Cup Finals in Malaga in November, where they face hosts Spain in the opening match, the world number two said on Tuesday
The two cases shocked the tennis world with many fuming at how they were handled by the authorities.
Third seed Alexander Zverev eased past home favourite Ugo Humbert
A ruthless Iga Swiatek slammed the door shut on German lucky loser Eva Lys with a 6-0 6-1 win on Monday to breeze into the quarter-finals of the year's opening Grand Slam for the second time.
Iga Swiatek was the latest top player to suffer an upset loss in Montreal as the Wimbledon champion
Defending champion Jannik Sinner, who has been recovering from illness, received a more favourable route to the US Open final than Carlos Alcaraz while Aryna Sabalenka will be tested in her bid to retain her title after the draw was made on Thursday.
World No. 1 Aryna Sabalenka proved a class above American eighth seed Amanda Anisimova to win the US Open women's final on Saturday.
Elena Rybakina powered into her first Cincinnati Open semi-final after stunning defending champion Aryna Sabalenka 6-1, 6-4 on Friday, while five-times Grand Slam champion Carlos Alcaraz recovered from a second-set blip to beat Andrey Rublev.