At Panola, Oppong earned all-conference honors and led them to a fairly successful season in the NJCAA Region XIV.

Oppong did not earn any major awards at the Division I level, but was considerably more effective as a senior, as he developed into a bigger scorer for Eastern Kentucky.

In the playoffs, he played a key role by substituting for Stefan Bonneau in multiple contests, helping his team win the league title.

He helped the team win the provincial Ontario Federation of School Athletic Associations (OFSAA) championship.

He was considered one of the top Canadians committing to an NCAA program that year, in a list headlined by Andrew Nicholson and Kris Joseph.

"[2] Head coach Jeff Neubauer commented on him, "We think Papa Oppong will be a tough match-up for our opponents because he is a shooter, rebounder and slasher.

"[8] Oppong debuted and made his first start for the Eastern Kentucky Colonels in their season opener on November 14, 2008, against Florida International.

"[2] Oppong return on January 15, 2009, against Eastern Illinois, and did not make another start that season until a loss to Morehead State at the 2009 Ohio Valley Conference men's basketball tournament.

[5] Heading into the 2009–10 season, Eastern Kentucky was ranked fifth in the Ohio Valley Conference, according to a coaches' preseason poll.

"[15] On November 14, 2009, he made his first appearance as a senior by putting up 13 points and 4 rebounds as Eastern Kentucky easily defeated West Virginia Wesleyan College, 102–71.

[17][18] On February 6, 2010, Oppong had another notable performance, chipping in 20 points to help Eastern Kentucky slip past Jacksonville State.

[14] After leaving college, Oppong took part in the draft combine for the newly formed National Basketball League of Canada (NBL) in August 2011.

[21] He made his professional debut with the Rainmen on November 3, 2011, scoring 6 points and recording 4 rebounds in a loss to the London Lightning.

[23] Nevertheless, he still drew the attention of Gary Durrant, the director of basketball operations for the Oshawa Power, who pursued Oppong in the draft combine itself.

Oppong began his second season at the professional level on November 3, 2012, with the Oshawa Power, when he posted 7 points and 5 rebounds in a one-point win over the Windsor Express.

On April 14, he scored 21 points for the Central Division All-Stars, who were coached by Micheal Ray Richardson, as they won 150–145.

Early the 2013 playoffs, head coach Bill Jones was forced to use Oppong as a substitute for star guard Stefan Bonneau, who was struggling with a knee injury.

"[31] Windsor eventually defeated London, who were the back-to-back champions in the league's first two seasons, to advance to the Finals series against the Island Storm.

[33] In the decisive Game 7 against the Storm, Oppong saw 15 minutes of play, scoring 3 points and committing 4 personal fouls.

He joined many Express players that had played for the team in the 2014–15 season and those signed for 2015–16, including 2015 league Finals MVP Kirk Williams and former teammate Adrian Moss.

Prior to 2013, he notified the Oshawa Power front office about his plans to pursue a career in education, leading to his trade to the Windsor Express.

While at Eastern Kentucky University, he intentionally majored in general studies so that he could attend teacher's college for one year.

"[2] Outside of basketball, Oppong is a fan of the Toronto Maple Leafs of the National Hockey League (NHL) and some of his favourite music artists include Jay Z and Fabolous.