[1] Walls earned a few accolades throughout his college career including: 2008 Horizon League Newcomer of the year & Second Team all conference as a freshman.
Also appearing in matches against Santos Laguna from Liga MX and Aston Villa from the English Premier League.
The team conceded only 16 goals in 28 games, the fewest in league history, and lost only one match in 40 total competitions.
Walls was one of three players that returned to Saint Louis FC from 2017 under new head coach Anthony Pulis.
Walls would play a crucial role in Saint Louis FC making their first every playoff appearance, starting in the last 9 regular season matches.
Walls would join the Ontario Fury of MASL for the 2018–2019 before signing with Chattanooga Red Wolves of USL league one for their inaugural season.