The Loggers started the stronger of the two teams, pulling out to a 12-point lead after the opening quarter.
But in a back-and forth game the Cubs had a big second quarter to pull within four at the interval.
Once again, however, a young Loggers team re-established a double-digit lead with a big third quarter and was able to hold on after that.
Jackson Giacone added 11 points in the win, while Larry Jimenez scored seven and Caden Vance and Evan Hodges five apiece.
South Fork shot a disappointing 36 percent from the field, as the Cubs dropped to 0-1.
“We were definitely a little rusty. The boys are still getting their basketball legs,” head coach Chris Contreras said. “But we only lost by eight, so it’s not bad for the first game.”
Oliver Tatton led the team in scoring, finishing with seven points, while Tanner Curran added six and Crue Contreras and Alex Harding five each.
South Fork plays at Ferndale on Saturday.
Eureka is now 1-1 and will host St. Bernard’s on Saturday night.