Wolves U18

On August 1, 2018, the United Soccer League announced that Chattanooga would be granted a franchise to play in their newly created third division, later named USL League One, beginning in 2019. An existing team, Chattanooga FC, had significantly higher attendance than other minor league teams with several matches over 10,000 spectators since they were established in 2009. They later accused the new USL franchise of attempting a takeover of the Chattanooga market and their home venue, Finley Stadium, after the team had declined to submit a bid in the new league.

The USL team announced their first head coach, Tim Hankinson. The club then officially announced their name, Chattanooga Red Wolves SC, on September 25, 2018. On November 21, 2019, the Red Wolves announced Jimmy Obleda as their new head coach and technical director.

During the 2021 USL League One Season, Chattanooga set the USL League One Record for longest undefeated streak at 15 matches. The team finished the season in third place with 44 points and a 11-11-6 record. Chattanooga proceeded to defeat North Texas SC in the USL League One Quarterfinals before falling to Greenville Triumph in extra time in the Semifinals.

During the 2022 USL League One Season, Chattanooga broke the USL League One Record for most goals in a game after dismantling Charlotte Independence 7–1. The result also broke the record for the most goals scored in a single match in the 44-year history of professional soccer in Tennessee. The Red Wolves topped the 42-year-old record of six goals scored in a single match by the North American Soccer League's Memphis Rogues in 1980.

On July 22, 2022, coach Obleda was placed on a provisional suspension pending the results of an investigation into allegations of misconduct brought forth by the USL Players Association. The United Soccer League Players Association lost confidence in the Chattanooga Red Wolves handling of the investigation, and filed a report with the U.S. Center for SafeSport asking them to investigate. 2022 saw Chattanooga make its deepest playoff run yet. Chattanooga advanced to the Semifinals of the USL League One Playoffs for the second consecutive season, downing defending champion Union Omaha 1–0 after extra time in front of a packed CHI Memorial Stadium. They then went on to beat the USL League One Regular Season Champions Richmond Kickers on the road 1–0, putting Chattanooga in its first ever final. Chattanooga then took on South Georgia Tormenta in the 2022 USL League One Final but ultimately fell short losing 1–2.

On December 14, 2022, the Red Wolves announced Jeff "Ziggy" Korytowski as their new head coach

On July 31, 2023, Scott Mackenzie was named interim head coach after previous interim head coach Jimmy Weekley had a "recent significant health situation" and was placed on a "medical leave of absence." On October 5, 2023, Scott Mackenzie was named full-time head coach and technical director, removing his interim tag.

On April 2, 2025, the first Chattanooga derby was held against Chattanooga FC, in the second round of the Open Cup hosted at Finley Stadium, Chattanooga. The game finished 1–1 after extra time with the Red Wolves winning on penalties. The game had an attendance of 12,131, the second-highest for a second round match in U.S. Open Cup history. The Red Wolves were eventually knocked out in the fourth round to MLS side Nashville SC, who eventually won the entire tournament, 1–0 at Geodis Park.