• Usia - 32.

Collin Johns pertandingan terakhir

• Collin Johns - Markos Kalovelonis | 12 Jun 2018 | 0:2 ITF Buffalo Men
• Collin Johns - Genaro Alberto Olivieri | 02 Mei 2017 | 0:2 ITF Tampa Men
• Luke Bambridge - Collin Johns | 22 Jul 2016 | 2:0 ITF Godfrey Men
• Collin Johns - Blake Mott | 21 Jul 2016 | 2:0 ITF Godfrey Men
• William Griffith - Collin Johns | 19 Jul 2016 | 1:1 ITF Godfrey Men
• Collin Johns - Sekou Bangoura | 02 Mar 2016 | 1:2 Boca Raton