Katie Mackey  Katie Mackey (born November 12, 1987) is an American middle-distance runner. Mackey placed 8th at 2018 IAAF World Indoor Championships – Women's 3000 metres. Mackey won a US national xc title over 6 km in 19:35 at 2018 USATF National Club Cross Country Championships. Mackey placed 6th in the 5000 m in 15:39.25 at 2018 USA Outdoor Track and Field Championships. Mackey finished 2nd in the 3,000 meters at the 2018 USA Indoor Track and Field Championships, qualifying her for the 2018 IAAF World Indoor Championships where she placed 8th. In 2017, Mackey won the U.S. road mile championship. She finished 6th at the 2016 United States Olympic Trials (track and field) in the 5,000 meters. Mackey placed 6th in 5000 m final in 15:16.96 at 2015 USA Outdoor Track and Field Championships  Mackey won the 2015 Stockholm Bauhaus Athletics 3,000 meter 2015 IAAF Diamond League event. Mackey placed 3rd in 1500 m final in 4:07.70 at 2014 USA Outdoor Track and Field Championships. Mackey won a silver medal at the 2014 IAAF World Relays in the women's 4 × 1500 metres relay. Mackey placed 8th in 5000 m at the 2014 IAAF Continental Cup in the 5000 m. Katie Mackey placed 8th in 15:57.78 in the 5000 m final and 9th in 4:32.10 in the 1500 m final at the 2013 USA Outdoor Track and Field Championships. Katie Mackey placed 11th in the 1500 m at the 2012 United States Olympic Trials (track and field) in 4:11.46 and DNS in 5000 m. Katie Follett placed 21st in the 1500 m at the 2008 United States Olympic Trials (track and field) in 4:22.60. At the University of Washington Mackey was an eight-time All-American. Katie Follett won the Elanor Troxell Award in 2006 as Fort Collins' top student-athlete. Katie Follett an 11-time conference champion, 13-time regional champion, and 11-time all-state performer in both cross country and track for Fort Collins High School. Katie set Fort Collins school records in the 3200 m (10:47.51) and 3200 m relay, and at 5 km in cross country (18:16). Katie won the 3200 m at the 2004 Kansas Relays and was second in the 1600 m.