In June 2018,
Potomac Nationals owner Art Silber announced that he had signed a letter of intent to build
a new stadium in
Fredericksburg, Virginia, that would open in April 2020. The 5,000-seat multi-purpose stadium, as then planned, would include a 300-seat club facility and 13 suites. In November 2018, the Fredericksburg city council unanimously gave final approval for the Silber family to finance, build, and maintain the $35 million stadium with the city as an "anchor tenant" making an annual payment to the club of $1.05 million for 30 years. A
groundbreaking ceremony was held on February 24, 2019, but construction work did not begin until July or August 2019. On September 25, 2019, general manager Nick Hall said, "We're 100 percent planning on opening April 23." MASN reported on January 13, 2020, that Hall had said that construction was on schedule and that he was confident the venue would be ready for the 2020 season. With the 2020 season start postponed due to the
COVID-19 pandemic, the Nationals held a virtual opening day on April 23, 2020. Hall said that the stadium was baseball-ready though construction was not yet complete, even though, with construction deemed as essential business, "The construction progress has gone off without a hitch." Construction was continuing at the start of June 2020. Since its inaugural 2021 season, the team has used the stadium, which in 2022 was renamed the
Virginia Credit Union Stadium, under a 10-year naming rights deal. As part of a process to give the team a new name that included Fredericksburg, The team's uniforms were revealed on November 16, 2019, along with a
Mary Washington logo at an event on Mary Washington's 311th birthday. In March 2020, the team unveiled their new mascot, Gus, described as "fat and fluffy" with purple fur and bright green eyebrows.
2020 season The 2020 minor league baseball season was initially postponed, and ultimately cancelled altogether, due to the
COVID-19 pandemic. With no minor league season to play, Fredericksburg became the alternate training site for the Washington Nationals, hosting players who were not on the active roster, as well as a number of minor league players and instructors, during the
2020 season.
2021 season Before the Fredericksburg Nationals could play a game at the
Class A-Advanced level, the team was notified in December 2020 that it would need to accept relegation to the
Low-A level to continue to play as an affiliate of the Washington Nationals. Silber confirmed the Fredericksburg Nationals would continue their affiliation with Washington at the new level for 2021 and beyond. They were organized into a newly named league, the
Low-A East. Fredericksburg began competition on May 4, 2021, with a 16–3 loss to the
Lynchburg Hillcats at
Bank of the James Stadium in
Lynchburg, Virginia. The Nationals played their first home game at
FredNats Ballpark on May 11, 2021, losing to the
Delmarva Shorebirds, 7–5, with 2,065 people in attendance. The team finished its inaugural 2021 season with a 44–76 win-loss record, ending in fourth (last) place in the North Division of the Low-A East League. However, the team's total attendance of 199,071 was the highest in its division.
2022 season In 2022, the Low-A East renamed itself as the Carolina League, the name historically used by the regional circuit prior to the 2021 reorganization, and was reclassified as a Single-A circuit. The League also changed its structure, from three four-team divisions to two six-team divisions. The team finished the 2022 regular season with a 75–55 overall win-loss record, first in the Carolina League's North Division. More specifically, Fredericksburg finished fifth in its division in the season's first half, with a 33–33 record, and first in the second half with a 42–22 record. In the first round of Carolina League playoffs, the FredNats fell in 3 games to
Lynchburg in the best-of-three game series, as the North Division's first-place teams in the two halves of the season.
2023 season The team finished the 2023 regular season with a 65–63 overall win-loss record, third in the Carolina League's North Division. More specifically, Fredericksburg finished third in its division in the season's first half, with a 30–33 record, and third in the second half with a 35–30 record.
2024 season; first league championship On September 18, 2024, the FredNats beat the
Kannapolis Cannon Ballers, 3–0, at home, in the third game of a 3-game series to win their first Carolina League championship.
2025 season: Sale of the team On June 9, 2025, the Silber family announced that the FredNats had been sold to
Diamond Baseball Holdings, joining their fellow Nationals affiliate
Harrisburg Senators among Diamond's MiLB holdings. ==Season-by-season results==