[3] Richards played in the 2017 McDonald's All-American Boys Game,[6] scoring two points, grabbing two rebounds and tallying two blocked shots in 14 minutes of action.

[15] Richards had 25 points including the two clinching free throws and 13 rebounds on January 25, in a 76–74 overtime win over Texas Tech.

[20] In the 2020 NBA draft, Richards was selected by the New Orleans Pelicans 42nd overall and immediately traded to the Charlotte Hornets in exchange for a 2024 second-round pick.

[22] Richards was assigned to the Greensboro Swarm and made his NBA G League debut on February 21, 2021, scoring 26 points and grabbing 10 rebounds.

[24] On October 19, 2022, Richards scored 19 points, alongside ten rebounds, in the Hornets' season-opening 129–102 win over the San Antonio Spurs.

[30] Richards made his Suns debut three days later, putting up a double-double of 21 points and 11 rebounds off the bench in a 125–121 win over the Detroit Pistons.

[31] He ended up becoming the first center in Suns franchise history to record a double-double of at least 20 points and 10 rebounds in his debut game while coming off the bench.