The Pinnacle of Developmental Experiences
One of the fundamental principles in athlete development and the National Team Development Program is having the best athletes train with and against the best. To achieve this, NTDP has designed the Indoor NTDP Training Series, consisting of seasonal developmental programs each year. The top 30-40 athletes per birth year, including athletes selected for age-group national teams, are invited to train together. USA Volleyball region zones, which are used for the Training Series and Scouting Network, are shown below.

Participation in the NTDP Training Series will provide athletes with feedback accompanied by online learning resources to support their holistic development in a healthy way. These training programs will be age appropriate and align with the expectations of our senior national team coaching and performance staff.
Age Groups |
|---|
| Men | Women | ||
|---|---|---|---|
| U21 | Born in 2005 | U21 | Born in 2005 |
| U20 | Born in 2006 | U20 | Born in 2006 |
| U19 | Born in 2007 | U19 | Born in 2007 |
| U18 | Born in 2008 | U18 | Born in 2008 |
| U17 | Born in 2009 | U17 | Born in 2009 |
| U16 | Born in 2010 | U16 | Born in 2010 |
| U15 | Born in 2011 | U15 | Born in 2011 |
Boys Indoor Training Series
Sept. 25-28, 2025
Colorado Springs, Colo.
Dec. 27-30, 2025
National Training Center
Anaheim, Calif.
Girls Indoor Training Series
July 29-Aug. 1, 2025
Hamilton, Ohio
Athletes born in 2007/2008
Dec. 18-21, 2025
Kansas City, Mo.
Athletes born in 2009-2012
Dec. 27-30, 2025
U.S. Olympic and Paralympic Training Center
Colorado Springs, Colo.