Info
| Last name | Pfenninger |
| First name | Louis |
| Nationality |  Switzerland |
| Date of birth | 01-11-1944 |
| Age | 81 |
| Place of birth | Bülach |
Monuments
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
| 05-09 | 27 | UCI World Championship Mendrisio (CM) | |||||
| 20-06 | 1 | National Road Championships - Switzerland (CN) | |||||
| Tour de Suisse (2.1) | |||||||
| 2 |  Standings | ||||||
| 1 |  Mountain | ||||||
| 18-06 | 1 | Stage 10Frick - Olten (24.0km) | |||||
| 17-06 | 5 | Stage 8Lyss - Frick (209.0km) | |||||
| 14-06 | Stage 5Lenzerheide Valbella - Bellinzona (175.0km) | ||||||
| 13-06 | 3 | Stage 3Walenstadt - Lenzerheide Valbella (91.0km) | |||||
| 13-06 | 1 | Stage 4Obervaz - Lenzerheide Valbella (7.0km) | |||||
 Giro d'Italia (2.HC) | |||||||
| 41 | Standings | ||||||
| 10-06 | Stage 20bLainate - Milano (20.0km) | ||||||
| 02-06 | 7 | Stage 12Desenzano del Garda - Serniga (28.0km) | |||||
| 28-05 | 6 | Stage 8San Vincenzo - Casciana Terme (203.0km) | |||||
| 02-05 | 19 | Meisterschaft von Zürich (1.1) | |||||
Teams
| Year | Team |
|---|---|
| 1975 | Zonca - Santini |
| 1974 | Willner - Birr-Brugg |
| 1974 | Zonca |
| 1973 | Zonca |
| 1972 |  Rokado |
| 1972 | Zonca |
| 1971 | GBC - Zimba |
| 1970 | GBC - Zimba |
| 1969 | Zimba - Mondia |
| 1969 | GBC - Zimba |
| 1968 | Zimba - Mondia |
| 1968 | GBC |
| 1967 | Tigra - Grammont - de Gribaldy |
| 1967 | Zwitserland |
| 1966 | Tigra - Grammont - de Gribaldy |
| 1965 | Springoil - Fuchs / Filotex |
Victories
| This year | 0 |
| Total | 5 |