|Date||R||Domácí vs Hosté||-|
|10/02 23:30||-||South Georgia Tormenta FC vs Richmond Kickers||View|
|10/06 02:00||-||FC Tucson vs Central Valley Fuego FC||View|
|10/08 23:00||-||Greenville Triumph SC vs Charlotte Independence||View|
|10/08 23:00||-||North Carolina FC vs Chattanooga Red Wolves||View|
|10/09 00:00||-||Forward Madison FC vs Richmond Kickers||View|
|10/09 00:00||-||Union Omaha vs South Georgia Tormenta FC||View|
|10/09 01:00||-||Northern Colorado Hailstorm vs FC Tucson||View|
|10/15 18:00||-||FC Tucson vs Forward Madison FC||View|
|10/15 18:00||-||Richmond Kickers vs Greenville Triumph SC||View|
|10/15 18:00||-||South Georgia Tormenta FC vs Chattanooga Red Wolves||View|
|10/15 18:00||-||Union Omaha vs Central Valley Fuego FC||View|
|10/15 23:00||-||Charlotte Independence vs North Carolina FC||View|
|Date||R||Domácí vs Hosté||-|
|10/02 02:30||-||Fuego FC vs Northern Colorado Hailstorm||0-1|
|10/01 23:30||-||Chattanooga Red Wolves vs Charlotte Independence||3-1|
|10/01 23:00||-|| North Carolina FC vs Union Omaha ||1-1|
|10/01 23:00||-||Greenville Triumph SC vs FC Tucson||2-2|
|09/28 23:30||-||North Carolina FC vs Central Valley Fuego FC||2-1|
|09/25 02:00||-||FC Tucson vs Chattanooga Red Wolves||2-1|
|09/25 01:00||-||Northern Colorado Hailstorm vs Greenville Triumph SC||1-1|
|09/25 00:00||-||Forward Madison FC vs South Georgia Tormenta FC||0-1|
|09/24 23:00||-|| Charlotte Independence vs North Carolina FC ||2-1|
|09/24 22:30||-|| Richmond Kickers vs Fuego FC ||1-1|
|09/22 02:30||-||Fuego FC vs Forward Madison FC||3-0|
|09/22 02:00||-|| Northern Colorado Hailstorm vs Union Omaha ||2-1|
USL League One (USL1) is a professional men's soccer league in the United States that had its inaugural season in 2019. The Division III league is operated by United Soccer League, the same group that operates the Division II USL Championship and other leagues. As of 2022, the league has 11 teams who play 30 regular season games, followed by playoffs.
The USL Championship was granted second division sanctioning by the United States Soccer Federation in January 2017, leaving the third tier of American soccer unoccupied. From 1996 to 2009, the United Soccer League operated leagues at the lower divisions under various names, including the USL Second Division, and the second division as USL First Division. On April 2, 2017, the USL announced that it would launch a new third division league in 2019, with a minimum of eight clubs and lower requirements than the second division USL. The new league had the temporary name USL Division III (USL D3). The league announced that they would target cities with a population of 150,000 to one million, mostly in cities currently without a professional team.
In the following months, the league began searching for cities and markets in which to locate new member teams. From April 26 to May 3, 2017, league vice president Steven Short toured the southeast region of the United States, stopping in the cities of Lexington, Kentucky, Knoxville, Tennessee, Asheville, North Carolina, Greenville, South Carolina, and Columbia, South Carolina. After the closing of the tour, the league announced a possible plan for Tormenta FC, a Premier Development League team from Georgia, to join the league. A few weeks later, league executives announced they would be visiting the Midwest area in the United States between May 22 and 26, stopping in Dayton, Ohio, Toledo, Ohio, Fort Wayne, Indiana, Lansing, Michigan, and Grand Rapids, Michigan. After the original tour concluded, Vice President Short visited Des Moines, Iowa to meet with the Des Moines Menace of the Premier Development League to join the league. Preceding the tour of the Midwest, Short visited two more cities in North Carolina: High Point and Fayetteville. Following the tour, Short announced potential plans to build a new multi-purpose stadium in High Point and had positive outlooks on potentially sharing a J. P. Riddle Stadium with the Fayetteville SwampDogs, or the ballpark for the Fayetteville Woodpeckers that ultimately opened in 2019 as Segra Stadium.
The unveiling of the first founding member, South Georgia Tormenta FC, took place on January 25, 2018. This was followed by FC Tucson on February 6, Greenville Triumph SC on March 13, and Madison, Wisconsin on May 17. Toronto FC II of the USL was announced on July 2, and Chattanooga, Tennessee was announced on August 1.
On August 22, 2018, Rochester Stadium Operations, LLC announced that the Rochester Rhinos will be stepping down from the USL Championship and joining League One in 2020. On September 11, 2018, the league announced that Richmond Kickers would also be dropping down from Championship to League One due to financial difficulties competing in the higher league. On October 8, 2018, Penn FC, another long-time USL member, announced they would follow Rochester in stepping down to League One in 2020. On October 10, the Lansing City Council unanimously approved a deal for the new Lansing Ignite FC team to begin USL League One play at Cooley Law School Stadium in the inaugural 2019 season. On October 2, 2018, the tenth and final founding member was revealed to be the reserve team of FC Dallas. Four days later, the club unveiled its branding as North Texas SC.
The league filed for Division III status with the USSF on August 14, 2018. Ten founding teams were listed in the application. On December 14, 2018, USSF voted to provisionally sanction League One as a Division 3 league for 2019. The league currently shares Division III status with MLS Next Pro and the National Independent Soccer Association.
The first League One game was played on March 29, 2019, when Tormenta FC defeated Greenville Triumph SC 1–0 before a crowd of 3,519 at Eagle Field in Erk Russell Park. Alex Morrell scored the first goal in the 72nd minute.
On May 1, 2019, an Omaha, Nebraska team to start play in 2020 was unveiled. On October 9, 2019, it was announced that both the New England Revolution and Inter Miami CF would be placing reserve teams in the league, bringing the total number of teams for the 2020 season to 12 teams. On October 21, 2019, it was announced that one of its inaugural teams, Lansing Ignite FC, would fold after its first and only season in existence.
On June 21, 2021, Major League Soccer announced the creation of a new professional soccer league, MLS Next Pro, which began play in 2022. Fort Lauderdale CF, New England Revolution II, North Texas SC and Toronto FC II joined MLS Next Pro after the 2021 season. Including Orlando City B which last competed in League One in 2020. Central Valley Fuego FC, Charlotte Independence and Northern Colorado Hailstorm FC began play in 2022.