ALVA, Okla. – Samantha Chambers has always considered herself an all-around cowgirl, but she didn’t have much chance to showcase it during her first two years of intercollegiate rodeo while attending Northwestern Oklahoma State University.

“During my freshman year, my breakaway roping horse died unexpectedly, so I have been hopping around on horses trying to figure out a horse that would work for me,” said Chambers, a junior from Calhan, Colorado. “The horse that died was elite, so it was hard to replace him. Being able to finally click with my new breakaway horse and get points was an amazing...