The Corpus Christi Hammerheads were a founding member of the IFL and completed their regular season at 8-8. The team finished behind San Angelo for the final playoff spot, as the Hammerheads dropped three of four decisions against the Stampede. Two of the losses were by seven points each. The team was also involved in a forfeit loss, because a player left the team illegally. Corpus Christi also played against the league's All Star team, losing 53-48. When the IFL folded, the Hammerheads joined the NIFL for 2005. When the IFL reformed, the Hammerheads returned. The 2006 season saw the Hammerheads go 9-5. The team won the only overtime game of the season, against Louisiana. The Hammerheads won seven straight to end the regular season and then defeated the Barracudas for the right to play Odessa for the Intense Bowl. Odessa beat the Hammerheads in the regular season 56-35 and the championship game was no different. The Roughnecks scored a record 97 points to the Hammerheads' 56. The Hammerheads returned in 2007 and had their best year ever. Wesley Cooper passed for nearly 2,500 yards and threw for 57 touchdowns. The team averaged 97 yards per game rushing and rushed for 56 touchdowns, one less than their passing touchdowns. The team lost two regular season contests, both against Louisiana. After powering past Frisco in the first round of the playoffs, the team would travel to Louisiana for Intense Bowl III. The Swashbucklers came out on top, 47-26. The Hammerheads were led by Dustin Almond in 2008. Justin Hardman led the team in rushing with 236 yards and fourteen scores, while Nathaniel Dunn caught eighteen touchdown passes. The defense picked off 32 passes, leading the team to a +19 turnover margin. The Hammerheads blasted past the CenTex Barracudas in the playoffs, 64-34, to earn their third consecutive Intense Bowl berth. For the second straight year, the team would face Louisiana. The Hammerheads took a 20-9 lead in the first quarter, but it wuickly disolved to a 43-27 halftime deficit. The Hammerheads were held scoreless in the third quarter and turned the ball over on almost every second half possession. Louisiana won the championship, 66-35.