Guam will be hosting the U18 Oceania Baseball Championships from January 22 to 27, 2019 at the Paseo Stadium. Australia, American Samoa, New Zealand, Palau and host Guam will compete for the right to advance to the 2019 U18 World Cup of Baseball in Korea. The event is sanctioned by the World Baseball Softball Confederation, which is the world governing body for baseball and softball.

Ray Brown, baseball development officer for the Oceania Region will be holding certification courses for Level 1 coaching and umpire. The courses will cover the basics of both technical and theory aspects of each discipline. The coaching course is scheduled for January 15 to 17 and the umpire course from January 18 to 20. Both courses will be held at the GNOC 3rd floor Conference Room in Maite from 5:00 p.m. to 10:00 p.m. The courses are free of charge.