Nathan Albrecht Mendelsohn

1º lugar

• Las Vegas International Open IBJJF Jiu-Jitsu Championship 2012 — BROWN / Adult / Male / Middle (Champion)
• Las Vegas Summer International Open IBJJF Jiu-Jitsu Championship 2014 — BLACK / Adult / Male / Middle (Champion)
• Seattle International Open IBJJF Jiu-Jitsu Championship 2016 — BLACK / Adult / Male / Medium Heavy (Champion)
• San Jose Summer International Open IBJJF Jiu-Jitsu Championship 2017 — BLACK / Adult / Male / Middle (Champion)
• San Jose International Open IBJJF Jiu-Jitsu Championship 2018 — BLACK / Adult / Male / Middle (Champion)
• Fresno International Open IBJJF Jiu-Jitsu Championship 2019 — BLACK / Adult / Male / Medium Heavy (Champion)
• American National IBJJF Jiu-Jitsu Championship 2020 — BLACK / Adult / Male / Heavy (Champion)

2º lugar

• American National IBJJF Jiu-Jitsu Championship 2012 — BROWN / Adult / Male / Middle (Runner-up)
• Los Angeles BJJ Pro IBJJF Championship 2016 — BLACK / Adult / Male / Middle (Runner-up)
• Boston Summer International Open IBJJF Jiu-Jitsu Championship 2016 — BLACK / Adult / Male / Medium Heavy (Runner-up)
• Asian Jiu-Jitsu IBJJF Championship 2017 — BLACK / Adult / Male / Middle (Runner-up)
• San Jose International Open IBJJF Jiu-Jitsu Championship 2017 — BLACK / Adult / Male / Medium Heavy (Runner-up)
• San Jose International Open IBJJF Jiu-Jitsu Championship 2020 — BLACK / Adult / Male / Heavy (Runner-up)
• New Orleans International Open IBJJF Jiu-Jitsu Championship 2021 — BLACK / Adult / Male / Heavy (Runner-up)

3º lugar

• American National IBJJF Jiu-Jitsu Championship 2012 — BROWN / Adult / Male / Open Class (3rd Place)
• Las Vegas International Open IBJJF Jiu-Jitsu Championship 2013 — BLACK / Adult / Male / Middle (3rd Place)
• Long Beach BJJ Pro IBJJF Championship 2014 — BLACK / Adult / Male / Middle (3rd Place)
• Las Vegas Summer International Open IBJJF Jiu-Jitsu Championship 2014 — BLACK / Adult / Male / Open Class (3rd Place)
• American National IBJJF Jiu-Jitsu Championship 2014 — BLACK / Adult / Male / Open Class (3rd Place)
• Las Vegas Spring International Open IBJJF Jiu-Jitsu Championship 2014 — BLACK / Adult / Male / Middle (3rd Place)
• Boca Raton International Open IBJJF Jiu-Jitsu Championship 2015 — BLACK / Adult / Male / Super Heavy (3rd Place)
• Asian Jiu-Jitsu IBJJF Championship 2016 — BLACK / Adult / Male / Open Class (3rd Place)
• Asian Jiu-Jitsu IBJJF Championship 2016 — BLACK / Adult / Male / Medium Heavy (3rd Place)
• San Jose International Open IBJJF Jiu-Jitsu Championship 2016 — BLACK / Adult / Male / Medium Heavy (3rd Place)
• Boston Summer International Open IBJJF Jiu-Jitsu Championship 2016 — BLACK / Adult / Male / Open Class (3rd Place)
• American National IBJJF Jiu-Jitsu Championship 2017 — BLACK / Adult / Male / Middle (3rd Place)
• American National IBJJF Jiu-Jitsu No-Gi Championship 2017 — BLACK / Adult / Male / Middle (3rd Place)
• San Jose International Open IBJJF Jiu-Jitsu Championship 2017 — BLACK / Adult / Male / Open Class (3rd Place)
• San Diego International Open IBJJF Jiu-Jitsu Championship 2017 — BLACK / Adult / Male / Middle (3rd Place)
• European Jiu-Jitsu IBJJF Championship 2018 — BLACK / Adult / Male / Middle (3rd Place)
• American National IBJJF Jiu-Jitsu Championship 2019 — BLACK / Adult / Male / Middle (3rd Place)
• San Jose International Open IBJJF Jiu-Jitsu Championship 2019 — BLACK / Adult / Male / Middle (3rd Place)
• Austin International Open IBJJF Jiu-Jitsu Championship 2021 — BLACK / Adult / Male / Heavy (3rd Place)
• American National IBJJF Jiu-Jitsu Championship 2021 — BLACK / Adult / Male / Heavy (3rd Place)
• World Master Jiu-Jitsu IBJJF Championship 2021 — BLACK / Master 1 / Male / Heavy (3rd Place)
• Pan Jiu-Jitsu IBJJF Championship 2021 — BLACK / Adult / Male / Heavy (3rd Place)
• Pan IBJJF Jiu-Jitsu Championship 2022 (Flo) — BLACK / Master 1 / Male / Heavy (3rd Place)