2016 will feature a field-size increase to 27,000 runners for the Chevron Houston Marathon and Aramco Houston Half Marathon. Each race will be capped at 13,500 available entries.
• Guaranteed Registration - Open May 6-31, 2015 for guaranteed race entrants including time qualifiers, Legacy Runners,
5-9 year Houston Marathon or Half Marathon finishers, 2015 deferred registrants and members designated by HARRA.
• Open Registration - Opens on National Running Day, June 3, 2015 and will remain open until all 27,000 entries sell-out.