Actually just to give some more context for the full climb it seems the standings are:
1. 2004: 55:51 Iban Mayo 23.10 km/h
2. 2004: 56:26 Tyler Hamilton 22.86 km/h
3. 1999: 56:50 Jonathan Vaughters 22.70 km/h
4. 2004: 56:54 Oscar Sevilla 22.67 km/h
5. 1999: 57:33 Alexander Vinokourov 22.42 km/h
6. 1994: 57:34 Marco Pantani 22.41 km/h
7. 1999: 57:34 Wladimir Belli 22.41 km/h
8. 2004: 57:39 Juan Miguel Mercado 22.38 km/h
9. 1999: 57:42 Joseba Beloki 22.36 km/h
10. 2004: 57:49 Lance Armstrong 22.31 km/h
11. 1999: 57:52 Lance Armstrong 22.29 km/h
12. 2004: 58:14 Inigo Landaluze 22.15 km/h
13. 1999: 58:15 Kevin Livingston 22.15 km/h
14. 1999: 58:31 David Moncoutie 22.05 km/h
15. 2004: 58:35 José Enrique Gutierrez 22.02 km/h
16. 2009: 58:45 Andy Schleck 21.96 km/h
17. 2009: 58:45 Alberto Contador 21.96 km/h
18. 2009: 58:48 Lance Armstrong 21.94 km/h
19. 2009: 58:50 Fränk Schleck 21.93 km/h
20. 1999: 58:51 Unai Osa 21.92 km/h
21. 2009: 58:53 Roman Kreuziger 21.91 km/h
22. 2002: 59:00 Lance Armstrong 21.86 km/h
22 eq. 2013: 59:00 Vroooooooomey 21.86 km/hr
hmmm I don't think I trust any of the riders above him though

not even moncoutie ... but yea work with the full numbers people ! or at least make it clear why you might want to exclude other performances when excluding them and not just ignoring them entirely