Filippo Simeoni

Following his retirement, Simeoni started organizing local races and set up a youth team. In early 2017, he was set to take up a position within the Italian Cycling Federation but was forced to withdraw due to a rule preventing anyone with a doping offense from taking office. The federation was unable to take into account that Simeoni's sentence came in the light of a confession during the court cases against Michele Ferrari.

Armstrong confessed to doping in January 2013. When asked about the confession, Simeoni said: "I acknowledge Armstrong's confession on television but he put me through such a humiliating experience and damaged me so much, in terms of sport, morale, and finances that I don't know if I could ever forgive him."

In October 2012, USADA stripped Armstrong of all seven of his Tour titles and banned from all sports that follow the World Anti-Doping Code for life, effectively ending his competitive career. Simeoni was one of the key witnesses in USADA's case against Armstrong and related how Armstrong threatened him during the 2004 Tour. In its "reasoned decision" announcing Armstrong's ban, USADA harshly criticized Armstrong's behavior during the incident, which it called a "sad moment in cycling." It found that Armstrong's decision to chase Simeoni down was "dangerous and impetuous," since it put him at serious risk of an accident. Moreover, it found that Armstrong had engaged in "attempted witness intimidation," which was in and of itself a violation of the World Anti-Doping Code.

In May 2009 he returned his Italian Championship jersey as a protest after his team was not invited to the 2009 Giro d'Italia.

Like Christophe Bassons six years earlier, Simeoni's career suffered after his confrontation with Armstrong. He found it hard to catch on with a team. The final straw came in 2009, when his team was left out of the 2009 Giro d'Italia even though he won the 2008 Italian National champion Road race. In protest, Simeoni returned his 2008 Italian Championship jersey in protest in May 2009. He was suspended for four months by the Italian Cycling Federation for doing so. He retired at the end of the 2009 season.

Since Simeoni was a prosecution witness in legal proceedings against Ferrari at the time of Armstrong's move against him in the 2004 Tour, Italian authorities threatened to bring charges of witness intimidation against Armstrong. In March 2005 Armstrong was interviewed by the authorities, apparently without resolution. Armstrong had been indicted by Italian authorities in December 2005. A criminal court refused to hear the case in January 2006. On March 6, 2006 Armstong's attorney asked a court to drop charges in Simeoni's defamation lawsuit. On April 13, 2006 Simeoni dropped the defamation suit and Armstrong dismissed his countersuit.

On the 18th stage of the 2004 edition of the Tour de France, Simeoni gapped up to a breakaway of six riders that posed no threat to Armstrong's leading position. By then, Armstrong was leading the race by seven minutes, and was well on his way to his sixth consecutive Tour victory. Nevertheless, Armstrong broke from the peloton and chased Simeoni down, prompting Armstrong's rival T-Mobile Team to try to catch the breakaway. This would not only catch Simeoni, but end any realistic chance of the six riders in the original breakaway had of winning the stage. The six riders implored Armstrong to drop back to the peloton, but Armstrong would not go unless Simeoni went with him. Armstrong's longtime top domestique, George Hincapie, later recalled being surprised at Armstrong's move, given his all-but-insurmountable lead.

Simeoni is known for his maverick actions. During the stage win in the Vuelta he stopped just before the finish line and walked across the finish line with his bike in his hands. He did so as a tribute to the victims of the September 11, 2001 attacks. Later the Union Cycliste Internationale fined him for this.

More famous is Simeoni's argument with Lance Armstrong. Simeoni was treated by doctor Michele Ferrari, who was also Armstrong's doctor. Simeoni testified in court that he began doping in 1993, that Dr. Ferrari had prescribed him doping products such as EPO and Human Growth Hormone in 1996 and 1997, and that Ferrari also gave him instructions on how to use these products and that he used them. In 2001 and 2002 Simeoni was suspended for several months for doping use. Armstrong reportedly called Simeoni a "liar" in an interview with the French newspaper Le Monde in July 2003. Simeoni lodged a charge of defamation against Armstrong and demanded €100,000. Simeoni announced that he would give any money awarded to him to charity. In 2006 Simeoni dropped the lawsuit.

Filippo Simeoni (born August 17, 1971) is an Italian former racing cyclist and the 2008 Italian road race champion. Simeoni won two stages in the Vuelta a España in 2001 and 2003, and the 2008 Italian National Road Race Championship.