Sievers played at Ankeny High School in Ankeny, Iowa, serving as the team's kicker and punter. He set state records with a 63-yard field goal, as well as in scoring with 77 points. He also lettered in baseball and soccer.
College career
1998
Sievers served as kickoff specialist as a true freshman. He played in 11 of 12 games that season. 14 of his 61 kickoffs went for touchbacks.
1999
Sievers was redshirted prior to his second season.
2000
Following two seasons without any field goal attempts, Sievers went 11-of-17 on field goals and 52-of-58 on extra points while leading the team in scoring with 85. Kicked two 50-yard extra points against Boston College and Florida, due to multiple unsportsmanlike conduct penalties.
2001
Sievers led the nation in field goals per game with 1.91, making 21-of-26 field goals for the season. He set a university record for scoring in a season with 119. Kicked a career-best 48-yard field goal against Syracuse. Went 1-of-2 in field goals against Nebraska during the Rose Bowl. Miami went on to win 37-14, finishing the season 11-0 and being named National champions. Along with the National championship, Sievers was named First-team All-American, First-team All-Big East, and finished 4th for the Lou Groza Award.
2002
Sievers kicked 13-of-22 in field goals, while leading the nation with 66 successful extra points. His 105 points rank 5th in Miami Hurricanes school history among kickers. Kicked a career-high 53-yard field goal against Florida; also attempted a career-high 57-yard field goal against Florida A&M. Sievers played a key role in the 2003 Fiesta Bowl against Ohio State, kicking a 40-yard field goal, preceded by two icings by OSU head coachJim Tressel, to end regulation and force the game to overtime. Miami would go on to lose in the 2nd overtime 31-24, thus ending Sievers' college football career. He would be named First-team All-Big East for the 2nd consecutive year, along with being named a finalist for the Mosi Tatupu Award.
Professional career
Houston Texans
Following his college career, Sievers was signed by the Houston Texans of the National Football League as an undrafted free agentMay 5, 2003, competing against veteran Kris Brown. The Texans waived him on August 26. He would be re-signed by the team for the following season's training camp, but the result was the same as he was released August 30, 2004.
Sievers signed with the Austin Wranglers of the Arena Football League for the 2005 season. He went 8-of-17 on field goals and 51-of-57 on extra points, as well as making three tackles on the season. In 2006, Sievers posted better numbers, going 14-of-25 on field goals and 90-of-105 on extra points. He also made four tackles and threw one pass during the season.
In 2007, Sievers left Austin for the Dallas Desperados. He wasn't needed as much for field goals, only going 8-of-13; he would set career highs in both extra points made and attempted. He left the Desperados after one season and hasn't played since.