roundabout said:
Arroyo was a fluke. Or to put it differently, a Movistar/Caisse rider suddenly punching above his weight when given time in a breakaway.
Also the comparisons between him and Porte at different stages of their careers are rather inane. One was doing his best GT, the other was doing his first.
Not to mention that in the key GC stages of that race:
Montalcino:
5 David ARROYO DURÁN GCE +12"
16 Richie PORTE SAX +1'42"
Terminillo:
17 Richie PORTE SAX +1'22"
20 David ARROYO DURÁN GCE +1'50"
L'Aquila:
8 David ARROYO DURÁN GCE +7"
13 Richie PORTE SAX +21"
Asolo:
12 David ARROYO DURÁN GCE +2'25"
24 Richie PORTE SAX +4'46"
Zoncolan:
11 David ARROYO DURÁN GCE +3'50"
18 Richie PORTE SAX +5'46"
Kronplatz:
16 David ARROYO DURÁN GCE +2'16"
17 Richie PORTE SAX +2'17"
Aprica:
7 David ARROYO DURÁN GCE +3'06"
14 Richie PORTE SAX +5'31"
Tonale:
5 David ARROYO DURÁN GCE +41"
19 Richie PORTE SAX +1'42"
If we compare Arroyo's previous Giri, then these performances (in terms of where he comes on the high mountain stages) aren't too out of the ordinary:
2007:
Montevergine (stage 8): 8th +7"
Santuario Nostra Signora della Guardia (stage 10): 11th +52"
Briançon (stage 12): 11th +2'39"
Santuario di Oropa (stage 13): 18th +1'43"
Tre Cime (stage 15): 11th +6'07"
Zoncolan (stage 17): 27th +4'26"
2009:
San Martino di Castrozza (stage 4): 10th +m.t.
Alpe di Siusi (stage 5): 8th +22"
Pinerolo (stage 10): 5th +26"
Monte Petrano (stage 16): 12th +2'51"
Blockhaus (stage 17): 17th +3'18"
Vesuvio (stage 19): 11th +1'15"
Arroyo wasn't a total scrub. However, he was unceremoniously returned to the area on the very fringe of the top 10 contenders where he belonged in 2011. Arroyo was the perfect foil in that kind of situation. He didn't have a sudden step up in form like Pereiro did and suddenly stay with the best; Arroyo lost time to Basso, Nibali, Scarponi and usually Evans on pretty much every major mountain stage, finishing roughly where you expected him to, only with L'Aquila, he was suddenly in a position to win. He was good enough to make the big guns sweat, and make them make the racing exciting early, but not good enough to ride with them on all the major climbs like Pereiro was in 2006. He also had some depleted domestique corps with Bruseghin having abandoned early, and much of the work on the climbs was done by Jeannesson and Urán. Remember, without that break he's at 15 minutes. In his previous 2 attempts at the Giro he'd been 10th at 12 minutes, and 11th at 13, so if anything he lost more time than expected in the big GC stages. Porte, at the time a neo-pro, didn't show the ability to stay with Arroyo on most climbs, and only on Terminillo did he outpace the Caisse d'Epargne man, however Arroyo at 30 was in the midst of peak years whereas Porte was still learning his craft.