The Championships took place at the Abe Stuber Track Complex on the campus of Southeast Missouri.
"We had a lot of personal bests this weekend, and that is always great to have during the final meet of the season," SIUE Head Coach Scott Block added. "We had a lot of young underclassmen do well, showing a lot of promise for our future."
Gibbs won the triple jump with a mark of 41-0.25.
"It was so exciting to see Brittney finally win the OVC triple jump," Block said.
The SIUE jumpers had another medalist Saturday, with Logan Webb placing third in the triple jump (46-1.5).
Scoring in the men's 5k for the Cougars was Ben Scamihorn, who placed eighth in the event.
SIUE's DeVonte Tincher took fifth in the men's 100m with a time of 11.15.
The Cougars had a couple top placements in the men's 800m, with Matt O'Connor and Joseph Stone placing fourth and fifth respectively. Jalea PaslayJalea Paslay ran in her first ever women's 800m final, placing seventh. In the women's 5k, SIUE's Keri Burmester ran a season best time of 18:55.37.
During Day two of the Championships, McCarthy took second in the long jump with a mark of 23-6.75. Also in the long jump, SIUE's Logan Webb placed fifth and Tincher finished eighth.
Nichyria Byrd placed sixth in the women's long jump with a mark of 18-11.75.
During Day one action, SIUE's John Barnes earned four points for the Cougars with a fifth place finish (164-6) in the men's hammer throw.
In the women's hammer throw, Rachyl Anderson placed ninth (153-2) for the Cougars.
Next up for the Cougars is the NCAA West Regional in Sacramento, California.