The college swimming season is entering its fourth week, and the nation's top contenders are slowly emerging into their competition schedules. It takes time before each team's strength fully shows in the rankings, but until then, there is no shortage of early-season ranked matchups to enjoy.

After last week saw Georgia beating North Carolina, Louisville battling Notre Dame, and a split meet between Minnesota and Florida State, this weekend's lineup of ranked teams shouldn't disappoint.

Auburn vs. Tennessee vs. Wisconsin

Auburn opened its season Friday by hosting SEC rival Tennessee and Wisconsin from the Big Ten in a two-day double dual meet that features every event with the exception of the 1650 freestyle and the 800 freestyle relay.

The Tigers struck first in claiming both the men's and women's 400 medley relays. The women, consisting of Aly Tetzloff, Breanna Roman, Haley Black, and Julie Meynen, won in a 3:38.74. On the men's side, Hugo Gonzalez de Oliveira, Tommy Brewer, Luis Martinez, and Peter Holoda convincingly took first for Auburn with a 3:13.51, the fastest time this season in the NCAA to date.

Tennessee's distance duo of David Heron and Taylor Abbott each went 9:10 in the 1000 to pick up the one-two finish. The Vols won a total of five events Friday night.

Wisconsin's Beata Nelson and Tennessee's Meghan Small battled to sub-two-minute 200 IMs. Nelson emerged with the victory in a 1:59.24. She would also top Small in the 200 backstroke later in the evening.

The 200 freestyle relay capped off the night. Auburn took the women's race and Tennessee claimed the men's event by 0.03 of a second, as Kyle Decoursey swam the Vols' anchor leg to a victory. The Tigers lead in both genders over the Badgers and Volunteers.

Notre Dame vs. Texas A&M vs. Michigan State vs. TCU

Another meet that features an SEC power is taking place in South Bend, Indiana, this weekend. Notre Dame is hosting Texas A&M, Michigan State, and TCU in a two-day season-opening meet, which kicked off Friday.

TAMU is dominating the women's side, claiming all but one swimming event on the first night and missing the win the 500 freestyle by 0.06 of a second. Bethany Galat doubled with wins in the 200 IM and the 200 butterfly. Lisa Bratton narrowly took the 200 backstroke, and Beryl Gastaldello won the 100 freestyle with a 48.68.

The Aggies women also won both the 200 freestyle and 400 medley relays. The men were only able to claim the 400 medley relay.

The Texas A&M men had nearly as much success, only falling in two events. Mauro Castillo Luna led the way for the Aggies with wins in the 200 IM and 100 breaststroke, including a 54.96 swim to start the year.

SMU Women's Classic

The swim of the night came at the women's-only SMU Classic. Defending NCAA champion Mallory Comerford of Louisville opened the season with 1:41.70 win in the 200 freestyle. She edged out a packed field that included Michigan's Siobhan Haughey.

Southern California's Riley Scott took the 100 breaststroke in a 59.56, making her the first to go under the one-minute mark this season.

USC leads Louisville by 4 1/2 points and is ahead of Michigan by seven.

There will be much more to come on this meet -- and the other two previously mentioned -- as the weekend progresses.