[10] Hartford finished 10th in the Eastern Conference in 2022, and hosted MLS club New York Red Bulls in the U.S. Open Cup, losing 2–1.

[11] 2023 was the worst season in Hartford Athletic's short history, as the club finish dead last in both the Eastern Conference and league as a whole, as they picked up just 18 points, 23 behind the playoff positions.

[13] The offseason saw a large overhaul of the squad, with 23 new signings before the season, including former Sporting CP goalkeeper Renan Ribeiro and 2017 MLS Cup winner Jay Chapman.

In mid-summer though, a goalless draw vs. Phoenix Rising on July 26 began a great run for Hartford, as they lost just one of their next 11 matches (a 3–0 loss away at rivals Rhode Island FC).

However, a 2–2 draw at Tampa Bay Rowdies and a 3–2 loss at Orange County saw Hartford's season come to an end, as they ultimately finished four points out of the playoffs.

Starting in the 2022 season, the 19th Regiment, Mad Hat Massive and the Elm City Casuals will unite as one group, called The Bonanza Among the notable chants used is the "Brass Bonanza," a melody sung by the supporters groups after scoring a goal, which was also used for the former NHL team in the city, the Hartford Whalers, for the same circumstances.

However with the addition of Rhode Island FC in 2024, the two sides developed a natural regional rivalry, being the only two USL Championship clubs in New England.

[31][32] The 2025 season will see Hartford Athletic play another New England team, Portland Hearts of Pine, in the USL Cup group stage.

[33] On June 8, 2021, Hartford Athletic announced they will be fielding a women's side to compete in the new USL W League beginning in 2022.