The 12th Vuelta a España (Tour of Spain), a long-distance bicycle stage race and one of the three grand tours, was held from 26 April to 12 May 1957. It consisted of 16 stages covering a total of 2,967 km (1,844 mi), and was won by Jesús Loroño. Vicente Iturat won the points classification and Federico Bahamontes won the mountains classification.
| Race details | ||||||||||||||||||||
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| Dates | 26 April – 12 May | |||||||||||||||||||
| Stages | 16 | |||||||||||||||||||
| Distance | 2,967 km (1,844 mi) | |||||||||||||||||||
| Winning time | 84h 44′ 06″ | |||||||||||||||||||
| Results | ||||||||||||||||||||
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| Stage | Date | Course | Distance | Type | Winner | |
|---|---|---|---|---|---|---|
| 1 | 26 April | Bilbao – Vitoria | 158 km (98 mi) |  Miguel Chacón (ESP) |
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| 2 | 27 April | Vitoria – Santander | 220 km (137 mi) | Carmelo Morales (ESP) |
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| 3 | 28 April | Santander – Mieres | 259 km (161 mi) | Federico Bahamontes (ESP) |
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| 4 | 29 April | Mieres – León | Annulled | |||
| 5 | 30 April | León – Valladolid | 172 km (107 mi) |  Roger Hassenforder (FRA) |
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| 6 | 1 May | Valladolid – Madrid | 212 km (132 mi) | Miguel Chacón (ESP) |
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| 7 | 2 May | Madrid – Madrid | 200 km (124 mi) |  Jan Adriaensens (BEL) |
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| 8 | 3 May | Madrid – Cuenca | 159 km (99 mi) | Roger Walkowiak (FRA) |
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| 9 | 5 May | Cuenca – Valencia | 249 km (155 mi) |  Rino Benedetti (ITA) |
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| 10 | 6 May | Valencia – Tortosa | 192 km (119 mi) | Bruno Tognaccini (ITA) |
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| 11 | 7 May | Tortosa – Barcelona | 199 km (124 mi) | Gilbert Bauvin (FRA) |
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| 12 | 8 May | Igualada – Zaragoza | 229 km (142 mi) | Mario Baroni (ITA) |
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| 13 | 9 May | Zaragoza – Huesca | 85 km (53 mi) |  |
Individual time trial | Jesús Loroño (ESP) |
| 14 | 10 May | Huesca – Bayonne (France) | 249 km (155 mi) | Antonio Ferraz (ESP) |
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| 15 | 11 May | Bayonne (France) – San Sebastián | 199 km (124 mi) | Roger Baens (BEL) |
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| 16 | 12 May | San Sebastián – Bilbao | 193 km (120 mi) | Antonio Suárez (ESP) |
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| Total | 2,967 km (1,844 mi) | |||||
| Rank | Rider | Team | Time |
|---|---|---|---|
| 1 | Jesús Loroño |
84h 44′ 06″ | |
| 2 | Federico Bahamontes |
+ 8′ 11″ | |
| 3 | Bernardo Ruiz |
+ 9′ 34″ | |
| 4 |  José Manuel Ribeiro Da Silva |
+ 14′ 32″ | |
| 5 | Raphaël Géminiani |
+ 17′ 07″ | |
| 6 | Francisco Moreno |
+ 18′ 43″ | |
| 7 | Jan Adriaenssens |
+ 19′ 38″ | |
| 8 | Pasquale Fornara |
+ 23′ 48″ | |
| 9 | Gastone Nencini |
+ 25′ 59″ | |
| 10 | Salvador Botella |
+ 28′ 06″ | |
| 11 | Guido Boni |
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| 12 | Vicente Iturat |
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| 13 | Jean Dotto |
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| 14 | Alberto Sant |
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| 15 | Roger Walkowiak |
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| 16 | Carmelo Morales |
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| 17 | Antonio Barbosa |
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| 18 | Francisco Masip |
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| 19 | Jean Malléjac |
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| 20 | Antonio Ferraz |
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| 21 | Antonio Suárez |
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| 22 | Roger Baens |
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| 23 | Benigno Aspuru |
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| 24 | Gilbert Bauvin |
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| 25 | Juan Campillo |
