2025 Sioux Falls Challenger

The 2025 MarketBeat Open was a professional tennis tournament played on indoor hardcourts. It was the second edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Sioux Falls, South Dakota, United States between 20 and 26 October 2025.

Singles main draw entrants

Seeds

¹ Rankings are as of 13 October 2025.

Other entrants

The following players received wildcards into the singles main draw:

The following players received entry into the singles main draw as alternates:

The following players received entry from the qualifying draw:

Erik Arutiunian
Justin Boulais
Andrew Fenty
Antoine Ghibaudo
Aidan McHugh
Keegan Smith

The following players received entry as lucky losers:

Champions

Singles

Patrick Kypson def. Johannus Monday 6–7, 7–6, 7–5.

Doubles

Rinky Hijikata / Mac Kiger def. Juan José Bianchi / Andrew Fenty 6–4, 6–4.