Luebke (1-1) surrendered six hits, issued only one walk and struck out four -- while yielding three earned runs or fewer for a 10th straight road start.
Hundley provided an RBI double and a pair of run-scoring singles for the Padres, who notched only their third victory of the season and broke a four-game skid. Cameron Maybin contributed a pair of RBI for the Padres.
Jeremy Guthrie (1-1) was tagged for six runs on nine hits over seven frames for the Rockies, who dropped the opener of a three-game set.
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