Madrid is off to an undefeated start in Iowa high school boys basketball. Two brothers, Toryn and Jevyn Severson, are a large part of that success.

Here is a look at this week’s High School on SI Top 15 Iowa high school boys basketball power rankings for the week of Jan. 13. To be eligible, you must be ranked in the Top 5 of the class rankings: 1.

The Iowa high school basketball season is well underway and there are plenty of games to keep an eye on, both boys and girls, happening around the state Tuesday night. Check out scores from many of the games across the state below.