Sean Kelly
Alberto Contador
Stat by stat
Bars are scaled to the leader in this list.
The verdict
Dead even across the measured categories. Our all-time ranking places Sean Kelly at #7 and Alberto Contador at #12.
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The case for Sean Kelly
The greatest Classics rider of his generation and one of the toughest cyclists ever, Kelly won nine Monuments across a career of brutal consistency: two Milan-San Remo, two Paris-Roubaix, two Liege-Bastogne-Liege and three Il Lombardia. He also won the 1988 Vuelta a Espana, took four Tour de France green jerseys, and amassed roughly 193 professional victories. His seven consecutive Paris-Nice titles from 1982 to 1988 remain a record for that prestigious stage race, and when the UCI introduced its world rankings in 1984, Kelly was the inaugural number one, a position he held for years. A sprinter who could also survive the cobbles, climb and endure foul weather, the quiet farmer's son from Carrick-on-Suir won across every kind of one-day terrain the sport could offer.
The case for Alberto Contador
El Pistolero was the most explosive Grand Tour climber of his generation, a rider who attacked where others calculated. Contador won all three Grand Tours, a feat achieved by only a handful of riders, and his official palmares lists seven Grand Tour titles, two Tours de France, two Giri d'Italia and three Vueltas a Espana, after two further wins were annulled following a contested clenbuterol case. His signature was the sudden, dancing acceleration on a steep gradient, and his rivalries with Andy Schleck and later Chris Froome produced some of the most dramatic mountain racing of the 2000s and 2010s. Aggressive to the end, he attacked from distance even in his final Vuelta in 2017, winning atop the Angliru on the day he retired, ensuring he left the sport exactly as he had raced it.