Donohue began learning to skate in 2001. In the 2005–2006 season, he competed with Sara Bailey. The following season, he skated with Kaylyn Patitucci. Having placed fifth on the novice level at the Eastern Sectional Championships, they did not advance to the
2007 U.S. Championships. Donohue placed fifth in the junior category with Lili Lamar at the 2008 Eastern Sectional Championships. Their result was insufficient to advance to the
2008 U.S. Championships.
Partnership with Gilles Donohue teamed up with
Piper Gilles ahead of the 2008–2009 season. Making their international debut, they won gold at the
2008–09 ISU Junior Grand Prix event in
Ostrava,
Czech Republic. They took silver at their second assignment, in
Cape Town,
South Africa. Their results qualified them for the
2008–09 Junior Grand Prix Final in South Korea, but they withdrew before the competition due to an injury to Gilles. They won the junior bronze medal at the
2009 and
2010 U.S. Championships. Gilles/Donohue were selected to compete for the United States at the
2010 World Junior Championships and placed ninth out of 34 teams. They announced their split in May 2010. Reflecting on the end of the partnership years later, Gilles said that she and Donohue were "very similar – very emotional and driven – but it didn't work for us. And we tried, we tried so hard to make it work, and again, it just wasn't the right partnership for either of us."
Partnership with Aronow Donohue teamed up with Alissandra Aronow in 2010. They trained in
Canton, Michigan, under the coaching team of
Igor Shpilband and
Marina Zueva, and competed in the senior ranks. They ended their partnership shortly after the
2011 U.S. Championships. ==Hubbell and Donohue==