Jay Mendell is in solo second place at 11-under, and Charles Delong is in solo third place at 10-under. William Sides, Jack Barber, and Kristoffer Kuvaas are all T4 at 9-under. 

The Trans-Mississippi Golf Association was officially organized on June 8, 1901, with the principal mission of advancing continuing interest in amateur golf. The first Trans-Mississippi Championship was held that year and has been held every year since, except for a three-year interruption during World War II. The championship is played at a different course each year, at sites near or west of the Mississippi River.

The list of past champions includes some of the biggest names in amateur and professional golf, including Jack Nicklaus (twice), Charlie Coe (four times), Deane Beman, Ben Crenshaw, George Archer, Gary Koch, Bob Tway, and Mark Brooks.

In 1987, the tournament field was restricted to mid-amateurs (those aged 25 and over). In 2009, two major changes were made: (i) the field was re-opened to players of all ages, and (ii) the format, which had been 36 holes of stroke play qualifying to determine a 64-player field for match play, was changed to 54 holes of stroke play. Since 2011, it has been a 72-hole stroke play championship.