2013 Summit League men's basketball tournament

The 2013 Summit League men's basketball tournament was the 2013 post-season tournament for Summit League, an NCAA Division I athletic conference. The tournament took place March 9–12, 2013 at the Sioux Falls Arena in Sioux Falls, South Dakota. Only Nebraska–Omaha was ineligible for the 2013 tournament due to its NCAA Division I transition. Teams were seeded by conference record, with tiebreakers used when necessary.

Tiebreaking procedure
The following rules define the tiebreaking procedure for The Summit League tournament. If there are multiple ties, the ties shall be broken in descending order. Once a tie is broken using the procedures below, it shall remain broken for purposes of all future comparisons. Tiebreaker procedures are used only to determine seeds for the league tournament.

Two-team tiebreaking criteria
The following criteria are applied to break ties between two teams:
 * 1) Results of head-to-head competition between the two tied teams.
 * 2) Comparison of each tied team's record against the team occupying the highest position in the standings continuing down through the standings until a team gains an advantage.
 * 3) When arriving at another group of tied teams while comparing records, use each team's record against the collective tied teams as a group (prior to that group's own tie-breaking procedure) rather than the performance against individual tied teams.
 * 4) If a tie still cannot be broken after applying criteria (1), (2) and (3), it will be broken by comparing each tied team's Ratings Percentage Index (RPI) (based upon the RPIratings.com Report issued on the morning following the last regular season league game).

Multiple-team tiebreaking criteria
The following criteria are applied to break ties between more than two teams:
 * 1) Results of each tied team's collective record against the other teams tied for the same position.
 * 2) If multiple ties still remain, then each tied team's record shall be compared to the team or group (if two or more are tied) occupying the highest position in the standings continuing down through the standings until a team gains an advantage.
 * 3) If the above results in two teams remaining, the two-team tiebreaker is used.
 * 4) If a tie involving three or more teams still cannot be broken after applying criteria (1) and (2), it will be broken by comparing each tied team's RPI (based upon the RPIratings.com Report issued on the morning following the last regular season league game).