The inaugural UDP group began in 2007, with 7 members. It had three mentors: Ray O’Connor (IRL), Margaret Hunnaball (ENG) and Ermanno Silvano (ITA)

Group 1: 2007 – 2009   
UmpireCountryStart GradeCurrent Grade 
Marcin GrochalPOLFIHWorld Panel Umpire
Luca FerraraITANATIONALFIH
Thomas DumonBELFIH
Stepan PodmolCZEFIH
Geoffrey ConnIRLNATIONALWorld Development Panel Umpire
Florian GeschlAUTNATIONAL
Ana FaiasPORNATIONALPromising Umpire List