After the end of his senior season, Peterson was automatically eligible for the
1995 NBA draft. He participated in the 1995
Portsmouth Invitational Tournament with the Portsmouth Sports Club team. He went undrafted in the NBA draft and started his professional career with
BCM Gravelines in
France. He played 30 games in the
LNB Pro A, the first level of French basketball, and averaged 13.6 points, 8.1 rebounds and 1.3 assists in 32 minutes of playing time. In the 1996–97 preseason, Peterson was signed by the
Dallas Mavericks of the
NBA, but was released on October 22, 1996, before the start of the NBA season. Peterson then joined
Panteras de Miranda of the
Venezuelan
Liga Profesional de Baloncesto in 1997. He spent the 1997–98 season with
JL Bourg-en-Bresse in the
LNB Pro B, the second tier of French basketball. In 1998 he briefly played for
Obras Sanitarias in the
Liga Nacional de Básquet of
Argentina. In 1999 he played for San Carlos,
Atléticos de San Germán in
Puerto Rico (1 game in the
Baloncesto Superior Nacional where he scored 9 points) and Mauricio Báez, a club that participated in the Baloncesto Superior del Distrito Nacional, the basketball league for clubs of the
Distrito Nacional in the Dominican Republic. In 2000 he played for the
Connecticut Pride in the
Continental Basketball Association (CBA), averaging 3 points, 4 rebounds and 0.6 blocks over 15 regular season games; he also played 1 playoff game, scoring 4 points and adding 4 rebounds and 4 blocks in 23 minutes. He then played for Mauricio Báez and San Carlos before signing for
Étendard de Brest, another French club that participated in the Pro B. In 2001 he played his first stint in
Spain, and played for
CB Plasencia in the
2000–01 LEB 2 season, the third level of Spanish basketball: he played 26 games, averaging 14.5 points and 10.8 rebounds per game. He then played for Mauricio Báez in the Dominican Republic,
Regatas San Nicolás in
Argentina, and
Club Atlético Goes in
Uruguay before signing with
CB Guadalajara in Spain. In his second season in Spain he averaged 16.2 points and 9.2 rebounds in 29 LEB 2 regular season games, and 17.3 points and 9.7 rebounds in 3 postseason games. He then spent the 2004–05 season with
STB Le Havre in the French Pro A, and averaged 10 points an 5.9 rebounds in 31 appearances; the then transferred to
Rouen Métropole Basket, another Pro A team, where he played 20 games of the 2005–06 season, averaging 10.7 points and 7.2 rebounds per game in 25.3 minutes. In 2006 he played in the
LIDOBA in the Dominican Republic with
Marineros de Puerto Plata. He then went back to Spain and signed for
Baloncesto León, playing 34 regular season games with averages of 7.4 points and 5.5 rebounds; he also played 11 playoff games, averaging 6.7 points and 4.3 rebounds. In the following season, Peterson signed for
Gandía BA in
Valencia, and played 30 games (9.3 points, 4.7 rebounds); he retired after playing the 2008–09 season with León. == National team career ==