![USADA logo on white background](https://www.usada.org/wp-content/uploads/usada-logo-1200x630.jpg)
U.S. Anti-Doping Agency Announces First Quarter Testing Numbers for 2007
The U.S. Anti-Doping Agency (USADA) performed a total of 2,025 doping control tests in the first quarter (January 1–March 31) of 2007 including 1,885 domestic tests.
![image of empty outdoor track starting line](https://www.usada.org/wp-content/uploads/track-and-field_post.jpg)
Korchemny Withdraws Challenge to U.S. Anti-Doping Agency Charges
Remi Korchemny (Castro Valley, Calif.) withdrew his challenge to the anti-doping rules violations charged against him by USADA.
![USADA logo on white background](https://www.usada.org/wp-content/uploads/usada-logo-1200x630.jpg)
CEO Terry Madden to Leave U.S. Anti-Doping Agency Later This Year
Terry Madden, Chief Executive Officer of the U.S. Anti-Doping Agency (USADA) since its creation in April 2000, submitted his resignation to the USADA Board of Directors during its March 1-2, 2007 meeting in Colorado Springs.
![USADA logo on white background](https://www.usada.org/wp-content/uploads/usada-logo-1200x630.jpg)
U.S. Anti-Doping Agency Announces Final Testing Numbers for 2006
The U.S. Anti-Doping Agency (USADA) administered a total of 8,421 doping control tests in 2006, including 7,856 domestic tests, USADA Chief Executive Officer Terry Madden announced today.
![close up of group of cyclists wheels and feet](https://www.usada.org/wp-content/uploads/cycling_post6.jpg)
U.S. Cycling Athlete Accepts Eight-Year Suspension for Doping Violation
Stephen Alfred of Capitola, Calif., an athlete in the sport of cycling, accepted an eight-year suspension after testing positive.
![image of cyclists riding in a race](https://www.usada.org/wp-content/uploads/cycling_post4.jpg)
Two Cycling Athletes Cleared by USADA
Cale Redpath of Durango, Colo. and Alice Pennington of Hood River, Ore. – accepted one-year suspensions for failure to appear after being selected as reserve athletes at USA Cycling and UCI-sanctioned events during the 2006 season.