It was originally scheduled to be held from 25 July to 7 August 2020, but on 24 March 2020, the Olympics were postponed to 2021 due to the COVID-19 pandemic.[1] Because of this pandemic, the games were played behind closed doors.[2]
Competing in their fifth final in a row (wins in 2008 and 2012; losses in 2004 and 2016), the Netherlands won their fourth title, after winning the final 3–1 over Argentina.[3] The defending champions Great Britain won the bronze medal after defeating India 4–3 in the bronze medal game.[4]
The twelve teams in the tournament were divided into two groups of six, with each team initially playing round-robin games within their group. Following the completion of the round-robin stage, the top four teams from each group advanced to the quarter-finals. The two semi-final winners met for the gold medal match, while the semi-final losers played in the bronze medal match.
Each of the Continental Champions from five confederations received an automatic berth. Japan as the host nation qualified automatically. The other teams qualified through the 2019 Women's FIH Olympic Qualifiers.[5]
^1 – Japan qualified both as the hosts and the continental champions, therefore that quota is added to the FIH Olympic Qualifiers rather than going to the runners-up of the tournament.[5]
As per statistical convention in field hockey, matches decided in regular time are counted as wins and losses, while matches decided by penalty shoot-outs are counted as draws.
On 26 July 2021, during the last five minutes of the preliminary match between Argentina and Spain, a cockroach was recorded on the field.[10] While switching between cameras, the Argentinian sports channel Torneos y Competencias spent several seconds with one cameraperson that was focused on a cockroach walking atop a fence, leading the TyC Sports commentator to acknowledge the presence of "la cucaracha".[11] A clip of the cockroach uploaded to Twitter by user @s6antispam went viral, receiving 8.2 million views worldwide over the weekend.[12]