While mainly playing in futures events, Daniell received a doubles wild card entry to play in the 2010 Heineken Open, an Association of Tennis Professionals 250 event in his home country of New Zealand. With new doubles partner, Horia Tecău, they had an improbable run to the finals of the event. The pair first dispatched fellow New Zealanders the Statham brothers, 6-3, 6-2.
In the semifinal match Daniell and Tecău faced Johan Brunström and Jean-Julien Rojer who had defeated grand slam winners Lukáš Dlouhý and Leander Paes. Daniell and Tecău prevailed 3-6, 7-6(4), 10-8 to set up a final with Brazilians Marcelo Melo and Bruno Soares. However, he had to withdraw due to an ongoing back injury, leaving Statham to compete in the singles alone.
Singles: 2 (2 titles)
Doubles: 12 (5 titles, 7 runners-up).