#20-Erik Jones was fastest during second practice at Phoenix with a speed of 134.053mph. The rest of the top 10: #19-Daniel Suarez, #18-Kyle Busch, #3-Ty Dillon, #33-Brandon Jones, #22-Brad Keselowski, #48-Brennan Poole, #7-Justin Allgaier, #43-Jeb Burton, and #42-Justin Marks.
See complete results on the Phoenix practice 2 speeds page (pdf).
