ɪn tˈuː θˈaʊzənd tˈuː, kælˈæspoʊ bˈæɾᵻd .θɹˈiːhˈʌndɹɪd θˈɜːɾi ˈeɪt wɪð sˈɪkstiːn dˈʌbəlz, tˈɛn tɹˈɪpəlz, θɹˈiː hˈoʊm ɹˈʌnz ænd sˈɪksti ˌɑːɹbˌiːˈaɪ ɪn sˈɛvənti ɡˈeɪmz wɪððə ɹˈʊkilˈɛvəl pɹˈoʊvoʊ ˈeɪndʒəlz, wˌɛɹ hiː wʌz vˈoʊɾᵻd baɪ bˈeɪsbɔːl ɐmˈɛɹɪkə æz ɐ paɪənˈɪɹ lˈiːɡ ˈɔːlstˈɑːɹ ænd wʌz nˈeɪmd tə paɪənˈɪɹ lˈiːɡ ˈɔːlstˈɑːɹ tˈiːm.
In 2002, Callaspo batted .338 with 16 doubles, 10 triples, three home runs and 60 RBI in 70 games with the rookie-level Provo Angels, where he was voted by Baseball America as a Pioneer League All-Star and was named to Pioneer League All-Star team.