Boys Singles 18 and under
Mönchengladbach:
1977 Ivan Lendl (CSSR)
Berlin:
1978 Hans Simonsson (SWE)
Mönchengladbach:
1979 Bernhard Pils (AUT)
Berlin:
1980 Francesco Cancellotti (ITA)
Mönchengladbach:
1981 Hans-Jörg Schwaier (GER)
1982 Fernando Roese (BRA)
1983 Michele Fioroni (ITA)
1984 Udo Riglewski (GER)
1985 Martin Strelba (CSSR)
1986 Alberto Mancini (ARG)
1987 Diego Noriega (PER)
1988 Arne Thoms (GER)
1989 Martin Damm (CSSR)
1990 Rene Hanak (CSSR)
1991 Josef Caska (CSSR)
1992 Dinu-Mihai Pescariu (ROM)
1993 Rainer Schüttler (GER)
1994 Patrik Gottesleben (GER)
1995 Arno di Pasquale (FRA)
1996 Marc-Olivier Baron (FRA)
Essen:
1997 Lars Uebel (GER)
1998 Stefan Wauters (BEL)
1999 Andre Dernovskiy (UKR)
2000 Andrei Dernovskiy (UKR)
2001 Philipp Petzschner (GER)
2002 Gael Monfils (FRA)
2003 Sebastian Rieschick GER)
2004 Igor Sijsling (NED)
2005 Javier Garrapiz-Borderias (ESP)
2006 Ruben Bemelmans (BEL)
2007 Cesar Ramirez (MEX)
2008 Andrey Kuznetsov (RUS)
Berlin:
2009 Kevin Krawietz (GER)
2010 Roberto Carballes Baena (ESP)
2011 Robin Kern (GER)
2012 Maximilian Marterer (GER)
2013 Daniil Medvedev (RUS)
2014 Mikael Ymer (SWE)
2015 Marcelo Tomas Barrios Vera (CHI)
2016 Daniel Altmaier (GER)
2017 Rudolf Molleker (GER)
2018 Lorenzo Musetti (ITA)
2019 Hamed Medjedovic (SRB)