Caroline Garcia was the defending champion, but she chose to participate in the Fed Cup semifinals this year.
Angelique Kerber was the reigning champion, but chose to compete in Båstad instead.
Simona Halep was the defending champion, but lost in the semifinals to Elina Svitolina.
Simona Halep was the two-time defending champion, but lost to Karolína Plíšková in the quarterfinals.
Elina Svitolina was the defending champion, but lost to Sloane Stephens in the semifinals.
Garbiñe Muguruza was the defending champion, but lost in the second round to Lesia Tsurenko.
Danielle Collins was the defending champion, but chose not to participate as she was still competing at the Australian Open.
Ashleigh Barty defeated Karolína Plíšková in the final, 7–6(7–1), 6–3 to win the women's singles tennis title at the 2019 Miami Open. It was Barty's first WTA Premier Mandatory title. She entered the top 10 in the WTA rankings for the first time with the win.
Caroline Wozniacki was the defending champion, but lost to Naomi Osaka in the semifinals.
Dayana Yastremska was the defending champion, but withdrew before the tournament began.
Garbiñe Muguruza was the two-time defending champion, but chose not to participate.
Veronika Kudermetova was the defending champion from 2019, when the tournament was last held as a WTA 125K series event, but she chose to compete in Dubai instead.
Iga Świątek defeated Karolína Plíšková in the final, 6–0, 6–0, to win the women's singles tennis title at the 2021 Italian Open. It was Świątek's first WTA 1000 singles title, and the 13 points Świątek lost in the championship match is the fewest on record in a WTA 1000 final; Serena Williams previously held the record, from the 2015 Miami Open final. This was the first WTA singles final to be resolved with a 'double bagel' scoreline since Simona Halep defeated Anastasija Sevastova at the 2016 Bucharest Open, and was just the tenth such final in WTA history. With the win, Świątek broke into the top 10 of the WTA rankings for the first time.
Elina Svitolina was the defending champion but chose not to participate.
The 2021 Dow Tennis Classic was a professional tennis tournament played on indoor hard courts. It was the twenty-seventh edition of the tournament which was part of the 2021 WTA 125 tournaments. It took place at the Greater Midland Tennis Center in Midland, Michigan, United States between 1 and 7 November 2021.
Viktorija Golubic was the defending champion, but chose not to participate.
Claire Liu won the title, defeating Beatriz Haddad Maia in the final, 6–3, 6–4.
Elise Mertens defeated Alizé Cornet in the final, 6–2, 6–0 to win the singles tennis title at the 2022 Jasmin Open.
The 2022 Abierto Tampico was a professional tennis tournament played on outdoor hard courts. It was the sixth edition of the tournament and first as a WTA 125 tournament. It took place at the Centro Libanés Mexicano de Tampico in Tampico, Mexico, between 24 and 29 October 2022.
This was the first edition of the tournament as a WTA 125 tournament.
Elisabetta Cocciaretto 
Magda Linette 
