Harrison went to Brookfield Central for high school, where he competed in football, basketball and track. He holds schools records in the long, high, and triple jump. His triple jump of 52 feet 4.5 inches at the 1983 Golden West Invitational ranked him #2 triple jump prep in the nation, and currently stands as the Wisconsin high school #1 all-time triple jump by over 2 feet. That mark also ranks on the top 10 list for the Golden West Invitational. He also had a personal best in the long jump of 23 feet 4 inches, which ranks among the top 35 in Wisconsin high school track & field history and a high jump of 6 feet 7 inches. He held the Wisconsin state meet triple jump record of 48' 6.25" for 22 years, from 1983 to 2005.
College
Harrison attended college at Kansas State University, where he captured three individual titles at the NCAA Championships, the most in school history. He was a 8-time Big 12 Conference individual champion in both indoor and outdoor long and triple jump. He holds school records in indoor long jump and outdoor long and triple jump. Harrison is the first K-State Track and Field athlete to be inducted into the Kansas State University Athletic Hall of Fame. The former Wildcat letterman was an 11-time NCAA All-American during his time at Kansas State University from 1984-88. Competing primarily in jumps, Harrison won NCAA indoor titles in the long jump in 1986 and the triple jump in 1988. He also won the NCAA outdoor triple jump crown in 1986 as well as being a three-time runner up in the NCAA Championships. Along with numerous accolades on the national stage, Harrison was a 15-time Big 8 Champion and still holds as of 2015 the school records in the indoor and outdoor long jump and outdoor triple jump.
Olympics
The 1991 World triple jump Champion, his chances of competing in the 1992 Olympics were ruined when he tore the cartilage in his knee. After recovering from surgery, Harrison bounded back to win the gold medal at the 1996 Summer Olympics with a personal best, American and Olympic record of. This jump is notable for the fact that it is the longest jump ever with a negative wind reading. The jump ranks Harrison as the third best triple jumper in history, behind Jonathan Edwards and Christian Taylor.
Harrison was inducted in the USATF Hall of Fame in 2013. 1998: best of 55-11.25...8th at Goodwill Games...ranked #4 U.S. in TJ by T&FN. 1997: best of 57-5.5...won USA Champs...9th at World Champs...ranked #4 in world at TJ by T&FN. 1996: best of 59-4.25...won Olympic Trials...gold at Olympic Games...ranked #2 in world at TJ by T&FN. 1995: best of 55-11.25...won USA Indoor...ranked #2 U.S. at TJ by T&FN. 1994: best of 57-2.25...2nd in USA Champs...ranked #2 in world at TJ by T&FN. 1993: best of 56-8...2nd in USA Champs...10th at World Champs...ranked #2 U.S. at TJ by T&FN. 1992: best of 55-11.75...6th in Olympic Trials...surgery for torn cartilage in knee...ranked #4 U.S. at TJ by T&FN. 1991: best of 58-4...won USA Champs...won gold at World Champs...ranked #1 in world at TJ by T&FN. 1990: best of 58-10...won USA Indoor...won USA Champs...won Goodwill Games...lost only once, in Zurich to Mike Conley...ranked #1 in world at TJ by T&FN. 1989: best of 57-3.75...6th in USA Indoor...ranked #4 in world at TJ by T&FN. 1988: best of 56-3.25...won NCAA Indoor; 8th in LJ...2nd in NCAA LJ...6th in Olympic Trials...ranked #4 U.S. at TJ by T&FN; #9 U.S. at LJ. 1987: best of 56-0...3rd in NCAA Indoor LJ...2nd in NCAA...7th in USA Champs...2nd in World University Games...ranked #7 U.S. at TJ by T&FN. 1986: best of 56-0...won NCAA Indoor LJ...won NCAA ; 6th in LJ...4th in USA Champs...ranked #4 U.S. at TJ by T&FN; #6 U.S. at LJ. 1985: best of 53-5.5...7th in NCAA Indoor; 5th in LJ. 1984: best of 54-1.75...11th in NCAA...22nd in qualifying at Olympic Trials...won USA Juniors...silver in Pan-Am Juniors. 1983: best of 52-4.5...2nd at Golden West. 1982: best of 48-8.5.
