Brent Yarina, BTN.com Senior Editor, May 18, 2013

It was all chalk in the opening round of our Big Ten helmet bracket. The biggest winner: Michigan State routed Northwestern, 71 percent to 29 percent. Now, it's time for Round 2. See all of the matchups and cast your votes in this post.

Here?s how it works: The field is divided into the Legends Division and Leaders Division, with the champion of each meeting for the title, and BTN fans will vote on every matchup. Also, only primary helmets are considered.

Editor?s note: Seeds were determined by Facebook polls, using the results as of Wednesday afternoon (Legends | Leaders).

[ RELATED: Relive our 2012 Big Ten football uniform bracket ]

LEGENDS DIVISION
1. Michigan (first-round bye)
2. Iowa (first-round bye)
3. Michigan State (beat NU, 71%-29%)
4. Nebraska (beat MIN, 57%-43%)
5. Northwestern
6. Minnesota

ROUND 2 MATCHUPS

No. 1 Michigan vs. No. 4 Nebraska

Nov 24, 2012; Columbus, OH, USA; Michigan Wolverines quarterback Devin Gardner (12) prior to the game against the Ohio State Buckeyes at Ohio Stadium. Mandatory Credit: Andrew Weber-US PRESSWIRE

Ameer Abdullah

No. 2 Iowa vs. No. 3 Michigan State

Mark Weisman

Tony Lippett

LEADERS DIVISION
1.
Ohio State (first-round bye)
2.
Wisconsin (first-round bye)
3.
Penn State (beat ILL, 63%-37%)
4.
Indiana (beat PUR, 53%-47%)
5.
Illinois
6. Purdue

ROUND 2 MATCHUPS

No. 1 Ohio State vs. No. 4 Indiana

Braxton Miller
Stephen Houston

No. 2 Wisconsin vs. No. 3 Penn State

Joel Stave
Allen Robinson

About Brent Yarina BTN.com web editor Brent Yarina covers football and men's basketball for BTN.com. He writes the popular uniform feature "Clothes Call," which also focuses on the latest cosmetic changes across Big Ten arenas and stadiums. Read all of his work here. You can subscribe to Yarina's RSS feed and follow him on Twitter @BTNBrentYarina.