Feilhaber had up to the age of seven lived in Brazil before he moved to the United States. There he spent the next eight years in Scarsdale, a suburb of New York City, where he played for the local team Scarsdale Lightning. In 1996 he won with the team the New York State Cup.
In 1999 he moved to Irvine, California, where he played for the school team of Northwood High School. He was also for the local club Irvine Strikers, with whom he won various titles, active. In 2003 he went to the University of California in Los Angeles and played with the UCLA Bruins.
Due to the origins of his grandfather ( a Jewish refugee from Austria ), he also has an Austrian passport.
The midfielder came in July 2005 by the Bruins for Hamburger SV; HSV had discovered him in his commitment to the U-20 national team of the United States in the Maccabiah Games in Israel. His league debut came on 14 October 2006 ( 7th Round ) in the 1-2 defeat at home to FC Schalke 04, as he was substituted at half-time for Nigel de Jong. By the summer of 2007 he played for both the A-team of HSV, as well as second team in the Regionalliga Nord.
As of August 10, 2007 Feilhaber for Derby County in the English Premier League was eligible to play. He made his debut on 17 September 2007 (6th Round ) in the 1-0 victory at home against Newcastle United when he came on in the 80th minute for Kenny Miller. After the sacking of Billy Davies, he came only to few league operations under new manager Paul Jewell. At the end of the season Feilhaber was released to allow him a free transfer exchange.
In August 2008, Feilhaber joined the Danish first division side Aarhus GF. There he performed his first mission on 1 September 2008 against FC Nordsjælland. On 27 July 2009 he scored his first goal for the club and was named "Player of the Game ". In the spring of 2010, Feilhaber injured and then came back only moderately in his role as a player. With the team he joined in the 1st Division, the second Danish league from.
Feilhaber joined in April 2011 the Major League Soccer at New England Revolution. Previously had CD Chivas USA and Philadelphia Union have the right to take Feilhaber under contract, knocked out.
Sporting Kansas City
In December 2012, Feilhaber for Sporting Kansas City, with whom he won the 2013 MLS Cup. When 7:6 final won on penalties, he converted his penalty for interim 3:1.
With the U-20 national team of the United States, Benny Feilhaber took part in the Netherlands at the Junior World Championship in 2005. There he was chosen by the FIFA jurors to one of the 14 "Discoveries of the Tournament".
In November 2006, he was asked by the Austrian co- national coach Andreas Herzog to play for the senior national team of Austria. This leaning Feilhaber from the grounds he would rather play for the U.S. team.
For the U.S. A national team he was in the squad of friendlies against the selection of Scotland (12 November 2005) and Germany (22 March 2006) called but not used in the games. His first international game he played on 25 March 2007 against the selection of Ecuador and the first goal he scored against the selection of China on 2 June 2007. In the finals of the 2007 CONCACAF Gold Cup in the United States, he scored against the selection of Mexico the decisive goal 2:1, which meant the fourth triumph in this competition for his team.
Feilhaber was also part of the U.S. squad, who took in the 2010 World Cup. He completed three bets, each as a substitute.