David Markowski (Roseville, CA) run at the 2018 USA Arena National Men's Championship came to an end in the semifinals with a 8-3 loss to Jeffrey Knott (Dallas-Fort Worth, TX). of the 2018 USA Arena National Men's Championship in Salt Lake City, Utah; Markowski advanced through the quarterfinals with a 9-5 win over Mark Robinson (Pittsburgh, PA).
 
Markowski finished 4-0 in the 0-team qualifying round. . In their opening game, Markowski defeated Mark Tolvstad (Aberdeen, SD) 7-4, then won 7-6 against Robinson and 8-4 against Guy Davis (Austin, TX). Markowski won 10-5 against Doug Owens (Kansas City, MO) in their final qualifying round match.
 
. For week of the event schedule, Markowski did not improve upon their best events, remaining at th place on the World Ranking Standings with total points. Markowski ranks th overall on the Year-to-Date rankings with points earned so far this season.