Boys Basketball Pendleton 86, The Dalles 45 Horizon Christian 53, South Wasco 38:  The Hawks nail down the third seed in this weekend’s Big Sky Conference Tournament   Southwest Washington Class 1A Boys Basketball Tournament Stevenson 55, Elma 44:  The Bulldogs move on to a loser-out game with LaCenter Wednesday evening at Rochester.   Girls Basketball Horizon Christian 51, South Wasco 34:  The Hawks finish the regular season in a tie for first with Arlington atop the Big Sky Conference.