The 2021 Rhein Asset Open presented by B&B Hotels was a professional tennis tournament played on clay courts. It was the eighth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Meerbusch, Germany, between 9 and 15 August 2021.
Singles main draw entrants Seeds Country Player Rank1 SeedDaniel Altmaier1201Damir Džumhur1212Botic van de Zandschulp1263Oscar Otte1404Juan Manuel Cerúndolo1455Tomáš Macháč1506Alex Molčan1537Sumit Nagal1598 1 Rankings as of 2 August 2021.
Other entrants The following players received wildcards into the singles main draw: Shintaro Mochizuki Rudolf Molleker Mats Rosenkranz
The following players received entry from the qualifying draw: Duje Ajduković Jesper de Jong Nick Hardt Nicolás Kicker
The following player received entry as a lucky loser: Nerman Fatić
Champions Singles
Marcelo Tomás Barrios Vera def. Juan Manuel Cerúndolo 7–6(9–7), 6–3.
Doubles
Szymon Walków / Jan Zieliński def. Dustin Brown / Robin Haase 6–3, 6–1.
References