2007: Millican won 13 singles matches, tied for the third-most in school history. He and Jonathan Davis also had 12 doubles victories, tied for the second-most in a season and third-most in an Eagle career. Millican went a combined 11-1 in singles and doubles play in Eastern's first six matches of the season. He had an impressive 7-6 (7-2), 6-3 win in a 6-1 loss to the 18th-ranked Huskies. He continued his knack for strong performances against nationally-ranked foes when he and Davis teamed up for an 8-7 (7-5) win in Eastern's 6-1 setback to No. 66 Denver. Millican made Eastern's historic win over Montana State official with a 6-3, 7-5 win. His most clutch win of the year came in a 7-5, 4-6, 6-3 win to snap a 3-3 tie with Utah State. Millican and Davis had a positive result in their first match in the No. 1 position, earning an 8-5 win in a 5-2 loss to Gonzaga on April 10. In a 4-0 win over Weber State in the Big Sky quarterfinals, he clinched Eastern's first-ever postseason win at the NCAA Division I level with a convincing 6-1, 6-2 victory. In the fall season, Millican went 1-2 in both singles and doubles play. The victory in singles came at the Red Lion Invitational over Idaho's Joel Trudel, 6-1, 6-0. He also teamed with Jonathan Davis for an 8-6 win over Nevada's Alex Daruty and Guillaume Tonelli.

2006: Millican earned Second Team All-Big Sky Conference mention after his successful season, playing mostly No. 4 singles and No. 2 doubles. With Kyle Cruzat, the duo sealed the doubles point in the final doubles contest to finish in Eastern's historic 6-1 win over Idaho. The 8-5 doubles win, in addition to his later 6-2, 6-0 victory at No. 4 singles, helped EWU earn its first victory over the Vandals in 22 meetings. He teamed with Jonathan Davis for an 8-5 win over Sacramento State's No. 2 doubles team. The Hornets would tie with Montana State for the regular-season crown. In singles play at the ITA Regionals, Millican defeated Montana's Doug Shryock, 6-4, 6-1, and Utah State's Brian Marchant, 6-3, 6-0. Millican went 3-0 in doubles (teaming with Kyle Schraeder) and had a 9-7 win at the Red Lion Invitational over Idaho duo Garrett Engeset and Uriah Jones.

2005: Millican played the majority of his matches as EWU's No. 2 player and finished the campaign in the No. 1 position. He showed promise in several season victories, including defeats of Gonzaga's Dru Ernst, 6-4, 7-5, and Whitworth's Justin Glasere, 6-2, 6-3.