RPI junior Sebastian Castillo-Sanchez went 3-0 while playing No. 1 last week, helping the Engineers to a 3-0 record. He began the week with a 6-2, 6-2 win in a match with Union, which RPI won 8-1. Castillo-Sanchez then defeated a nationally-ranked opponent from Hobart 6-3, 6-2 in a 7-2 team win. He closed with a 6-3, 6-4 victory over an opponent from Ithaca, which RPI defeated 7-2.