Word of mouth and exposure - particularly through social media - have played integral roles in promoting the sport with women, organisers and competitors say.
"There are a lot of colleges across the US that have timber sports, and they're teaching and getting men and women into the sport of lumberjacking," said Ingbretson, who works as the community education director at Hayward's high school and manages a local fitness centre.
She says she's been treated like a celebrity at school and in town this week and finds it particularly gratifying when she's congratulated by young, up-and-coming competitors in the sport.
"It's just another reason to be active and engaged in the community that we are in, whether it's bringing in new kids or supporting the kids that just started [log] rolling."
Now, she's setting her sights on an all-round title.
"To be efficient in multiple disciplinesâ¦is very important, and it's very difficult ... it just takes a level of dedication and commitment to make it happen."
Urbanova, meanwhile, also hopes her success is inspiring and that she keeps up her record-setting streak.
"I'm still growing and still learning, but now the level of the girls is really high, so it's also hard to keep the same rhythm with them because they now want to be better than me," she said.
"I just feel pretty proud of myself."