The United States finished in a best-ever second place, reaching the semifinals in all ten tournaments.

The relegation battle was a three-way competition going into the final rounds involving Japan, Kenya, and Wales, with Japan finishing last to be relegated from the Series next season.

The World Series Qualifier tournament saw Ireland promoted to core status for the first time for the 2019–20 season.

Japan was promoted to core team status for the season after winning the 2018 Hong Kong Sevens qualifier.

They replaced Russia, which was relegated after finishing as the last place core team on the 2017–18 World Rugby Sevens Series.