The 2021 Miami Open was a professional hardcourt tennis tournament played from March 23 to April 4, 2021, on the grounds of Hard Rock Stadium in Miami Gardens, Florida in the United States. The 36th edition of the Miami Open, it was a Masters 1000 event on the 2021 ATP Tour, and a WTA 1000 event on the 2021 WTA Tour. The 2020 edition was postponed due to the onset of the COVID-19 pandemic in Florida.
Due to COVID-19 restrictions, capacity for each session was limited to 800âÂÂ1,000 spectators, and spectators were only admitted in the three largest courts on the site; Hard Rock Stadium itself was not used. Roger Federer and Ashleigh Barty were the defending champions from 2019 in the men's and women's singles respectively. Barty successfully defended her title, defeating Bianca Andreescu in the final, 6âÂÂ3, 4âÂÂ0, retired. Federer did not attend the tournament.
<nowiki>*</nowiki> Players with byes receive first round points.
The following are the seeded players. Seedings and ranking points based on ATP rankings as of March 22, 2021.
â The player did not qualify for the tournament in 2019. Accordingly, this was his points from the ATP Challenger Tour.<br/> â¡ The player did not qualify for the tournament in 2019. Accordingly, this was his 18th best result deducted instead.<br/> ý The player used an exemption after the completion of the tournament in 2019. Accordingly, this was his points from the ATP Challenger Tour.
The following players received wildcards into the singles main draw:
The following players received entry using a protected ranking into the singles main draw:
The following players received entry from the qualifying draw:
The following players received entry as a lucky losers:
The following pairs received wildcards into the doubles main draw:
The following pair received entry as an alternate:
The following are the seeded players. Seedings are based on WTA rankings as of March 15, 2021. Rankings and points before are as of March 22, 2021.
^ Points form 2019 Miami, 2019 Guadalajara, 2019 Charleston and 2019 Monterrey will be dropped on Monday, April 5; 2019 Indian Wells will not be mandatory anymore
á Miami will not be considered a mandatory result that must be counted as part of a player's best 16 results
â The player did not qualify for the tournament in 2019. Accordingly, this was her 16th best result deducted instead.
The following players received wildcards into the singles main draw:
The following player received entry using a protected ranking into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
The following pairs received wildcards into the doubles main draw:
The following pairs received entry using a protected ranking into the doubles main draw:
The following pairs received entry as an alternate: