The 2018 Missouri Valley Conference men's basketball tournament, popularly referred to as "Arch Madness", was the postseason men's basketball tournament that completed the 2017–18 season in the Missouri Valley Conference. The Tournament was held at the Scottrade Center, now known as the Enterprise Center, in St. Louis, Missouri from March 1–4, 2018.

The Tournament marked the first tournament with Valparaiso as a member of the MVC, having replaced Wichita State when the Shockers joined the American Athletic Conference in June 2017.

The tournament's top seed, Loyola–Chicago defeated the No. 3 seed Illinois State in the championship game to receive the Missouri Valley's automatic bid to the NCAA tournament.

Seeds Teams were seeded by conference record, with ties broken by overall record in conference games played between the tied teams, then (if necessary) by overall adjusted RPI on the day following the conclusion of the regular season as calculated in Collegiate Basketball News' Men's RPI Report. The top six seeds received opening round byes.

With a win at Southern Illinois on February 21, Loyola–Chicago clinched the outright MVC championship and the No. 1 seed.

SeedSchoolConferenceTiebreaker 1Tiebreaker 21Loyola–Chicago15–32Southern Illinois11–73Illinois State10–81–1 vs. DrakeRPI: 844Drake10–81–1 vs. Illinois StRPI: 1625Bradley9–96Indiana State8–107Missouri State7–111–1 vs. Evansville,1–1 vs. N. IowaRPI: 1338Evansville7–111–1 vs. Missouri St,1–1 vs. N. IowaRPI: 1379Northern Iowa7–111–1 vs. Missouri St,1–1 vs. EvansvilleRPI: 14110Valparaiso6–12

Schedule GameTime *MatchupScoreTelevisionOpening round – Thursday, March 116:00 pmNo. 8 Evansville vs. No. 9 Northern Iowa50–60MVC TV [ESPN3]28:30 pmNo. 7 Missouri State vs. No. 10 Valparaiso83–79Quarterfinals – Friday, March 2312:00 pmNo. 1 Loyola–Chicago vs. No. 9 Northern Iowa54–50MVC TV [ESPN3]42:30 pmNo. 4 Drake vs. No. 5 Bradley61–6356:00 pmNo. 2 Southern Illinois vs. No. 7 Missouri State67–6368:30 pmNo. 3 Illinois State vs. No. 6 Indiana State77–70Semifinals – Saturday, March 372:30 pmNo. 1 Loyola–Chicago vs. No. 5 Bradley62–54CBSSN8 5:00 pmNo. 2 Southern Illinois vs. No. 3 Illinois State68–76 OTFinal – Sunday, March 491:00 pmNo. 1 Loyola–Chicago vs. No. 3 Illinois State65–49 CBS* Game times in CST; rankings denote tournament seed.

Tournament bracket

* denotes overtime period

References