TIBURON/STARNBERG, October 7, 2022
Top seed Denis Kudla from the United States moved on to the singles quarterfinals of the Tiburon Challenger after defeating Swiss youngster Leondro Riedi 6-2, 6-3 in only 54 minutes on Thursday.
Kudla will next face No. 5 seed Enzo Couacaud of France, who rallied past Australian qualifier Luke Saville 4-6, 6-0, 6-3 in one hour and 47 minutes.
Alexis Galarneau of Canada caused the upset of the day by knocking out second-seeded US-American Stefan Kozlov 6-1, 7-5 in one hour and 42 minutes and will next play Briton Paul Jubb, a 6-2, 6-3 winner over qualifier Alex Michelsen from the United States.
Singles – Second Round
 D. Kudla (USA) d L. Riedi (SUI) 62 63
A. Galarneau (CAN) d  S. Kozlov (USA) 61 75
 E. Couacaud (FRA) d [Q] L. Saville (AUS) 46 60 63
P. Jubb (GBR) d [Q] A. Michelsen (USA) 62 63
Doubles – Quarterfinals
Riedi (SUI) / V. Vacherot (MON) d  J. Cash (GBR) / H. Patten (GBR) 76(5) 63
C. Broom (GBR) / C. Frantzen (GER) d  A. Harris (AUS) / L. Saville (AUS) 63 67(8) 10-7
[WC] S. Banthia (IND) / C. Overbeck (DEN) d A. Chandrasekar (IND) / N. Prashanth (IND) 63 75
[WC] E. Clark (USA) / A. Perez (USA) d E. Escobedo (USA) / N. Mejia (COL) 63 26 10-7