Constantin Frantzen

Born 1998 193 cm Right handed

Head to head

Match log

Qualifying Challengers

2026

Cagliari CH, challenger Clay, April

Q1 L Enrico Dalla Valle 3-6 1-6

2025

Cancun CH, challenger Hard, August

Q1 L Luis Carlos Alvarez 2-6 2-6

2023

Augsburg CH, challenger Clay, August

Q1 L Daniel Masur 3-6 4-6

2022

Drummondville CH, challenger Hard, November

R32 L Roko Horvat 6-7(3) 1-6

Q2 L Roy Smith 6-7(6) 6-7(6)

Q1 W Omni Kumar 2-6 7-5 7-5

Columbus CH, challenger Hard, September

Q1 L James Trotter 0-6 2-6