May 5 - Mission Valley Mariners A team vs. Class AA Missoula Mavericks, 6:30 p.m. (Lindborg-Cregg Field).
May 8 - Glacier Twins at Class A Missoula Mavericks doubleheader, 1 p.m. (Lindborg-Cregg Field).
May 9 - Class A Kalispell Lakers at Class A Mavericks doubleheader, 1 p.m. (Lindborg-Cregg Field).
May 29-30 - Hot Shots 3-on-3 tournament (Valley Christian School).
June 4-5 - Fairfield Invitational high school tournament (Fairfield High School).
June 7-10 - MSU-Northern boys' Youth Camp (Havre).
June 11-13 - Cut Bank Summer Classic boys' tournament.
June 13-16 - MSU-Northern Shooting Camp (Havre).
June 19-20 - YMCA Southgate Classic 3-on-3 tournament (Southgate Mall).
June 20-23 - Montana-Western Lady Bulldog Hoop Camp (Dillon).
June 14-18 - Montana Super Skippers Summer Camp (Rattlesnake Elementary).
May 27 - Missoula Family YMCA middle school Meet of Champions, 3 p.m. (Missoula Big Sky).
July 10 - Missoula Kids Marathon, 11 a.m. (Caras Park). Hellgate Village 5k family fun run, 5 p.m. (Caras Park).
June 5-6 - Three Blind Refs tournament (Kalispell).
June 21-25 - FC Missoula's British Soccer Camp (Fort Missoula fields).
July 12-16 - FC Missoula's Brazilian Soccer Cap (Fort Missoula fields).
June 5-6 - Missoula Lady Osprey Garden City Walkoff tournament (Fort Missoula and Missoula Big Sky fields).
June 15 - Missoula Parks and Recreation youth summer tennis lessons begin (Playfair Park).