Chen has competed in New Zealand, Taiwan, Australia, Junior World Championship in Russia and Commonwealth Youth Games in Bahamas.

Later in 2013, Chen won a rematch against Blackburn, winning by Unanimous Decision and the Central North Island Boxing Championships.

[9] After winning the New Zealand Nationals, Chen went on to compete at the Junior World Boxing Championship in Russia, reaching top 16.

[10][11][12][13] His father Murray Potts helped raise money for him to compete in Russia with the "Give a Little" website.

He attended an AIBA sponsored training camp that lasted over a week, to help prepare him for the 2018 Youth Olympics.

[25] In his second bout of the year, Chen defeated an amateur boxer from Tonga by Unanimous decision at ABA Stadium.

[30] In late June 2017, Chen took on amateur rival, the 2017 South Island Youth 75 kg Golden Gloves champion, Jesse Hawken at Regan Foley's tournament in Auckland, New Zealand.

[32] Chen won his bout in the Commonwealth Youth Games against Australian Cullum James Adams.

[34][35] After a day of rest, Chen took on England boxer Aaron Patrick Bowen in his 50th amateur bout of his boxing career and in the semifinals of the tournament.