1991 Giro d'Italia Classification Leadership Classification leadership by stage

| Stage | Winner | General_classification | Points_classification | Trofeo_Fast_Team |
|---|---|---|---|---|
| 1 | Philippe Casado | Philippe Casado | Philippe Casado | Selle Italia-Magniarredo-Vetta |
| 2a | Gianluca Pierobon | Franco Chioccioli | Franco Chioccioli | Carrera Jeans-Tassoni |
| 2b | Mario Cipollini | Franco Chioccioli | Franco Chioccioli | Carrera Jeans-Tassoni |
| 3 | Eduardo Chozas | Franco Chioccioli | Franco Chioccioli | Carrera Jeans-Tassoni |
| 4 | Éric Boyer | Éric Boyer | Claudio Chiappucci | Z |
| 5 | Marino Lejarreta | Franco Chioccioli | Claudio Chiappucci | ONCE |
| 6 | Vladimir Poulnikov | Franco Chioccioli | Franco Chioccioli | Carrera Jeans-Tassoni |
| 7 | Mario Cipollini | Franco Chioccioli | Claudio Chiappucci | Carrera Jeans-Tassoni |
| 8 | Davide Cassani | Franco Chioccioli | Claudio Chiappucci | Carrera Jeans-Tassoni |
| 9 | Massimo Ghirotto | Franco Chioccioli | Claudio Chiappucci | Carrera Jeans-Tassoni |
| 10 | Gianni Bugno | Franco Chioccioli | Claudio Chiappucci | Carrera Jeans-Tassoni |