: The 2013 season kicked off on September 5 with a high-demand matchup between the defending champion Baltimore Ravens and the Denver Broncos. Buying Tips for the 2013 Season

: A leading unauthorized but widely used resale platform that offered a "FanProtect Guarantee".

: The San Francisco 49ers saw one of the largest year-over-year increases, with home game averages jumping 67% to $209 . The Houston Texans set an average general ticket price of $86.39 .

For games that were sold out at the box office, several reputable secondary sites were popular in 2013:

: When buying from individuals, always use a credit card for buyer protection and look for the "Verified by Ticketmaster" seal on official platforms.

: As the official ticketing partner, Ticketmaster hosted primary sales for most NFL clubs. Single-game tickets typically went on sale to the general public in mid-May , shortly after the schedule release. Official Resale: The NFL Ticket Exchange

: A new feature for the 2013 season allowed fans to see both primary (unsold) tickets and secondary (fan-to-fan resale) tickets on a single, color-coded interactive seat map.

: Another major player in the secondary market known for having specific seat listings. 2013 Pricing and Trends