The Bolta Ao Algarve will be decided in the individual time trial on stage 4, a 32.2km undulating course that pits 2020 winner Remco Evenpole (Quick Step - Alfa Vinyl) against race leader David Gaudou (Groupama - FDJ) The event will be held at.

American Brandon McNulty (UAE Team Emirates) is one of seven within 10 seconds of Gaudou's lead, as is Ethan Hayter (Ineos Grenadiers), who finished second overall last year.

Other strong clockers within a minute include Dylan van Baar (Ineos Grenadiers) and Gaud's teammate and European champion Stefan Küng.

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