C’est le champion du monde Filippo Ganna (Ineos Grenadier), 24 ans,. qui a remporté la 1ère étape du Giro d’Italia, un contre la montre de 15,1 km, dans les rues de Palerme. Il devance de 22 secondes le jeune Portugais Joao Almeida (Deceuninck Quick Step), 22 ans, et le Danois Mikkel Bjerg (UAE) de 23 secondes. Ganna a utilisé un braquet de 60/11 et a parcouru ce chrono à 58,831 km/h avec un dénivelé négatif. Il devient le premier porteur du maillot Rosa pour cette édition 2020, pour son premier Grand Tour.Son coéquipier Geraint Thomas réalise aussi une belle performance, à la 4ème place. le Gallois prend déjà de l’avance sur ses principaux adversaires. A noter la lourde chute du Colombien Miguel Angel Lopez ( Astana) lors de ce chrono. Il a été contraint à l’abandon.
Classement
| 1 | Filippo Ganna (Ita) Ineos Grenadiers | 0:15:24 |
| 2 | Joao Almeida (Por) Deceuninck-Quickstep | 0:00:22 |
| 3 | Mikkel Bjerg (Den) UAE Team Emirates | 0:00:23 |
| 4 | Geraint Thomas (GBr) Ineos Grenadiers | 0:00:24 |
| 5 | Tobias Foss (Nor) Team Jumbo-Visma | 0:00:31 |
| 6 | Josef Cerny (Pol) CCC Team | 0:00:36 |
| 7 | Matteo Sobrero (Ita) NTT Pro Cycling | 0:00:41 |
| 8 | Lawson Craddock (USA) EF Pro Cycling | 0:00:41 |
| 9 | Miles Scotson (Aus) Groupama-FDJ | 0:00:42 |
| 10 | Matthias Brändle (Aut) Israel Start-Up Nation | 0:00:42 |
| 11 | Jan Tratnik (Slo) Bahrain McLaren | 0:00:43 |
| 12 | Jos Van Emden (Ned) Team Jumbo-Visma | 0:00:43 |
| 13 | Chad Haga (USA) Team Sunweb | 0:00:44 |
| 14 | Michael Hepburn (Aus) Mitchelton-Scott | 0:00:45 |
| 15 | Rohan Dennis (Aus) Ineos Grenadiers | 0:00:48 |
| 16 | Martijn Tusveld (Ned) Team Sunweb | 0:00:48 |
| 17 | Simon Yates (GBr) Mitchelton-Scott | 0:00:49 |
| 18 | Tanel Kangert (Est) EF Pro Cycling | 0:00:50 |
| 19 | Kamil Gradek (Pol) CCC Team | 0:00:50 |
| 20 | Pieter Serry (Bel) Deceuninck-Quickstep | 0:00:52 |
| 21 | Christopher Hamilton (Aus) Team Sunweb | 0:00:55 |
| 22 | Nico Denz (Ger) Team Sunweb | 0:00:56 |
| 23 | Michael Matthews (Aus) Team Sunweb | 0:00:58 |
| 24 | Brandon McNulty (USA) UAE Team Emirates | 0:00:59 |
| 25 | Pello Bilbao (Spa) Bahrain McLaren | 0:01:00 |
| 26 | Ben O’Connor (Aus) NTT Pro Cycling | 0:01:00 |
| 27 | Thomas De Gendt (Bel) Lotto Soudal | 0:01:03 |
| 28 | Chris Harper (Aus) Team Jumbo-Visma | 0:01:04 |
| 29 | Tony Gallopin (Fra) AG2R la Mondiale | 0:01:04 |
| 30 | Jacopo Mosca (Ita) Trek-Segafredo | 0:01:05 |
| 31 | Lawrence Warbasse (USA) AG2R la Mondiale | |
| 32 | Davide Ballerini (Ita) Deceuninck-Quickstep | 0:01:06 |
| 33 | James Whelan (Aus) EF Pro Cycling | 0:01:07 |
| 34 | Sean Bennett (USA) EF Pro Cycling | 0:01:07 |
| 35 | Jonathan Castroviejo Nicolas (Spa) Ineos Grenadiers | 0:01:07 |
| 36 | Victor Campenaerts (Bel) NTT Pro Cycling | 0:01:07 |
| 37 | Mikkel Frølich Honoré (Den) Deceuninck-Quickstep | 0:01:08 |
| 38 | Diego Ulissi (Ita) UAE Team Emirates | 0:01:09 |
| 39 | Ramon Sinkeldam (Ned) Groupama-FDJ | 0:01:09 |
| 40 | Jonathan Caicedo (Ecu) EF Pro Cycling | 0:01:10 |
| 41 | Sam Oomen (Ned) Team Sunweb | 0:01:12 |
| 42 | Maciej Bodnar (Pol) Bora-Hansgrohe | 0:01:13 |
| 43 | James Knox (GBr) Deceuninck-Quickstep | 0:01:13 |
| 44 | Fabio Felline (Ita) Astana Pro Team | 0:01:14 |
| 45 | Jai Hindley (Aus) Team Sunweb | 0:01:15 |
| 46 | Pawel Poljanski (Pol) Bora-Hansgrohe | |
| 47 | Christoph Pfingsten (Ger) Team Jumbo-Visma | 0:01:17 |
| 48 | Brent Bookwalter (USA) Mitchelton-Scott | 0:01:18 |
| 49 | Lucas Hamilton (Aus) Mitchelton-Scott | 0:01:18 |
| 50 | Fernando Gaviria Rendon (Col) UAE Team Emirates | 0:01:19 |
| 51 | Patrick Gamper (Aut) Bora-Hansgrohe | 0:01:20 |
| 52 | Cesare Benedetti (Ita) Bora-Hansgrohe | 0:01:20 |
| 53 | Valerio Conti (Ita) UAE Team Emirates | 0:01:20 |
| 54 | Koen Bouwman (Ned) Team Jumbo-Visma | 0:01:20 |
| 55 | Manuele Boaro (Ita) Astana Pro Team | 0:01:20 |
| 56 | Aleksandr Vlasov (Rus) Astana Pro Team | 0:01:20 |
| 57 | Gianluca Brambilla (Ita) Trek-Segafredo | 0:01:21 |
| 58 | Oscar Rodriguez Garaicoechea (Spa) Astana Pro Team | 0:01:22 |
| 59 | Danilo Wyss (Swi) NTT Pro Cycling | |
| 60 | Ben Gastauer (Lux) AG2R la Mondiale | 0:01:22 |
| 61 | Tony Martin (Ger) Team Jumbo-Visma | 0:01:23 |
| 62 | Patrick Konrad (Aut) Bora-Hansgrohe | 0:01:23 |
| 63 | Matteo Fabbro (Ita) Bora-Hansgrohe | 0:01:23 |
| 64 | Joe Dombrowski (USA) UAE Team Emirates | 0:01:25 |
| 65 | Fausto Masnada (Ita) CCC Team | 0:01:27 |
| 66 | Ilnur Zakarin (Rus) CCC Team | |
| 67 | Ben Swift (GBr) Ineos Grenadiers | 0:01:29 |
| 68 | Wilco Kelderman (Ned) Team Sunweb | 0:01:29 |
| 69 | Lachlan Morton (Aus) EF Pro Cycling | 0:01:29 |
| 70 | Vincenzo Nibali (Ita) Trek-Segafredo | 0:01:29 |
| 71 | Amanuel Gebreigzabhier (Eri) NTT Pro Cycling | 0:01:30 |
| 72 | Marco Mathis (Ger) Cofidis | 0:01:32 |
| 73 | Rodrigo Contreras Pinzon (Col) Astana Pro Team | 0:01:32 |
| 74 | Domenico Pozzovivo (Ita) NTT Pro Cycling | 0:01:34 |
| 75 | Mattia Bais (Ita) Androni Giocattoli-Sidermec | 0:01:34 |
| 76 | Hector Carretero (Spa) Movistar Team | 0:01:34 |
| 77 | Joseph Rosskopf (USA) CCC Team | |
| 78 | Benjamin Thomas (Fra) Groupama-FDJ | 0:01:34 |
| 79 | Eduardo Sepulveda (Arg) Movistar Team | 0:01:35 |
| 80 | Jhonatan Manuel Narvaez Prado (Ecu) Ineos Grenadiers | 0:01:36 |
| 81 | Juan Sebastian Molano Benavides (Col) UAE Team Emirates | 0:01:36 |
| 82 | Edoardo Affini (Ita) Mitchelton-Scott | 0:01:36 |
| 83 | Josip Rumac (Cro) Androni Giocattoli-Sidermec | 0:01:36 |
| 84 | Eros Capecchi (Ita) Bahrain McLaren | 0:01:37 |
| 85 | Ruben Guerreiro (Por) EF Pro Cycling | 0:01:38 |
| 86 | Cameron Meyer (Aus) Mitchelton-Scott | 0:01:39 |
| 87 | Hermann Pernsteiner (Aut) Bahrain McLaren | 0:01:39 |
| 88 | Maximiliano Ariel Richeze (Arg) UAE Team Emirates | 0:01:40 |
| 89 | Rafal Majka (Pol) Bora-Hansgrohe | 0:01:40 |
| 90 | Dario Cataldo (Ita) Movistar Team | 0:01:40 |
| 91 | Attila Valter (Hun) CCC Team | 0:01:40 |
| 92 | Kilian Frankiny (Swi) Groupama-FDJ | 0:01:40 |
| 93 | Arnaud Demare (Fra) Groupama-FDJ | 0:01:41 |
| 94 | Stefano Oldani (Ita) Lotto Soudal | 0:01:42 |
| 95 | Alex Dowsett (GBr) Israel Start-Up Nation | 0:01:42 |
| 96 | Jack Haig (Aus) Mitchelton-Scott | 0:01:43 |
| 97 | Steven Kruijswijk (Ned) Team Jumbo-Visma | 0:01:45 |
| 98 | Salvatore Puccio (Ita) Ineos Grenadiers | 0:01:45 |
| 99 | Simone Ravanelli (Ita) Androni Giocattoli-Sidermec | 0:01:46 |
| 100 | Damien Howson (Aus) Mitchelton-Scott | 0:01:47 |
| 101 | Jakob Fuglsang (Den) Astana Pro Team | 0:01:47 |
| 102 | Simon Pellaud (Swi) Androni Giocattoli-Sidermec | 0:01:48 |
| 103 | Simon Clarke (Aus) EF Pro Cycling | 0:01:48 |
| 104 | Iljo Keisse (Bel) Deceuninck-Quickstep | 0:01:48 |
| 105 | Louis Meintjes (RSA) NTT Pro Cycling | 0:01:48 |
| 106 | Nicola Conci (Ita) Trek-Segafredo | 0:01:50 |
| 107 | Peter Sagan (Svk) Bora-Hansgrohe | 0:01:51 |
| 108 | Ignatas Konovalovas (Ltu) Groupama-FDJ | 0:01:51 |
| 109 | Harm Vanhoucke (Bel) Lotto Soudal | 0:01:52 |
| 110 | Antonio Pedrero (Spa) Movistar Team | 0:01:53 |
| 111 | Marco Frapporti (Ita) Vini Zabu’ KTM | 0:01:53 |
| 112 | Pavel Kochetkov (Rus) CCC Team | 0:01:53 |
| 113 | Luca Wackermann (Ita) Vini Zabu’ KTM | 0:01:54 |
| 114 | Yukiya Arashiro (Jpn) Bahrain McLaren | 0:01:54 |
| 115 | Mathias Le Turnier (Fra) Cofidis | 0:01:54 |
| 116 | Aurélien Paret Peintre (Fra) AG2R la Mondiale | 0:01:54 |
| 117 | Sergio Samitier Samitier (Spa) Movistar Team | 0:01:55 |
| 118 | Guy Sagiv (Isr) Israel Start-Up Nation | 0:01:57 |
| 119 | Daniel Navarro Garcia (Spa) Israel Start-Up Nation | 0:01:57 |
| 120 | Jacopo Guarnieri (Ita) Groupama-FDJ | 0:01:58 |
| 121 | Stéphane Rossetto (Fra) Cofidis | 0:01:59 |
| 122 | Rick Zabel (Ger) Israel Start-Up Nation | 0:02:00 |
| 123 | François Bidard (Fra) AG2R la Mondiale | 0:02:00 |
| 124 | Alexander Cataford (Can) Israel Start-Up Nation | 0:02:03 |
| 125 | Jonas Gregaard Wilsly (Den) Astana Pro Team | 0:02:04 |
| 126 | Tao Geoghegan Hart (GBr) Ineos Grenadiers | 0:02:05 |
| 127 | Lorenzo Rota (Ita) Vini Zabu’ KTM | 0:02:05 |
| 128 | Andrea Vendrame (Ita) AG2R la Mondiale | 0:02:06 |
| 129 | Carl Fredrik Hagen (Nor) Lotto Soudal | 0:02:07 |
| 130 | Edoardo Zardini (Ita) Vini Zabu’ KTM | 0:02:07 |
| 131 | Kamil Malecki (Pol) CCC Team | 0:02:10 |
| 132 | Mark Padun (Ukr) Bahrain McLaren | 0:02:11 |
| 133 | Enrico Battaglin (Ita) Bahrain McLaren | 0:02:11 |
| 134 | Albert Torres Barcelo (Spa) Movistar Team | 0:02:12 |
| 135 | Matteo Spreafico (Ita) Androni Giocattoli-Sidermec | 0:02:12 |
| 136 | Sander Armee (Bel) Lotto Soudal | 0:02:12 |
| 137 | Rudy Barbier (Fra) Israel Start-Up Nation | 0:02:12 |
| 138 | Matthew Holmes (GBr) Lotto Soudal | 0:02:13 |
| 139 | Jonathan Dibben (GBr) Lotto Soudal | 0:02:13 |
| 140 | Victor De la Parte (Spa) CCC Team | 0:02:13 |
| 141 | Geoffrey Bouchard (Fra) AG2R la Mondiale | 0:02:14 |
| 142 | Domen Novak (Slo) Bahrain McLaren | 0:02:14 |
| 143 | Jesper Hansen (Den) Cofidis | 0:02:14 |
| 144 | Filippo Zana (Ita) Bardiani CSF Faizane’ | 0:02:14 |
| 145 | Giulio Ciccone (Ita) Trek-Segafredo | 0:02:15 |
| 146 | Simone Consonni (Ita) Cofidis | 0:02:18 |
| 147 | Antonio Nibali (Ita) Trek-Segafredo | 0:02:19 |
| 148 | Antwan Tolhoek (Ned) Team Jumbo-Visma | 0:02:20 |
| 149 | Einer Augusto Rubio Reyes (Col) Movistar Team | 0:02:21 |
| 150 | Pieter Weening (Ned) Trek-Segafredo | 0:02:21 |
| 151 | Alessandro Bisolti (Ita) Androni Giocattoli-Sidermec | 0:02:21 |
| 152 | Alessandro Tonelli (Ita) Bardiani CSF Faizane’ | 0:02:22 |
| 153 | Elia Viviani (Ita) Cofidis | 0:02:24 |
| 154 | Giovanni Carboni (Ita) Bardiani CSF Faizane’ | 0:02:32 |
| 155 | Fabio Mazzucco (Ita) Bardiani CSF Faizane’ | 0:02:35 |
| 156 | Giovanni Visconti (Ita) Vini Zabu’ KTM | 0:02:35 |
| 157 | Julien Bernard (Fra) Trek-Segafredo | 0:02:36 |
| 158 | Dylan Sunderland (Aus) NTT Pro Cycling | 0:02:40 |
| 159 | Adam Hansen (Aus) Lotto Soudal | 0:02:42 |
| 160 | Giovanni Lonardi (Ita) Bardiani CSF Faizane’ | 0:02:43 |
| 161 | Simone Bevilacqua (Ita) Vini Zabu’ KTM | 0:02:45 |
| 162 | Alvaro Jose Hodeg Chagui (Col) Deceuninck-Quickstep | 0:02:47 |
| 163 | Etienne Van Empel (Ned) Vini Zabu’ KTM | 0:02:47 |
| 164 | Francesco Romano (Ita) Bardiani CSF Faizane’ | 0:02:48 |
| 165 | Davide Cimolai (Ita) Israel Start-Up Nation | 0:02:49 |
| 166 | Jaakko Hanninen (Fin) AG2R la Mondiale | 0:02:53 |
| 167 | Davide Villella (Ita) Movistar Team | 0:02:54 |
| 168 | Jefferson Alexander Cepeda (Ecu) Androni Giocattoli-Sidermec | 0:02:56 |
| 169 | Simon Guglielmi (Fra) Groupama-FDJ | 0:02:59 |
| 170 | Jhonatan Restrepo Valencia (Col) Androni Giocattoli-Sidermec | 0:03:00 |
| 171 | Nathan Haas (Aus) Cofidis | 0:03:13 |
| 172 | Nicolas Edet (Fra) Cofidis | 0:03:31 |
| 173 | Filippo Fiorelli (Ita) Bardiani CSF Faizane’ | 0:03:54 |
| 174 | Luca Chirico (Ita) Androni Giocattoli-Sidermec | 0:04:01 |
| 175 | Luca Covili (Ita) Bardiani CSF Faizane’ | 0:07:14 |