Grain Valley Sonic Showdown - Tournament Boys Basketball 1/22-26 Share Page: Location Grain Valley, MO Get Directions Tournament Games Date Opponent Time Outcome Score Matchup 1/22 Marshall TBD Loss 45 - 56 1/24 Platte County TBD Win 61 - 57 1/26 Van Horn TBD Loss 78 - 80 (3 OTs)