The Tigerettes (2-7, 2-2 District), conversely, suffered their second straight loss earlier in the evening when they dropped a 52-48 decision to the Lady Spartans.
In the opener, the Tigerettes got off to a solid start and held a 17-11 lead at the end of the first quarter, but Summit (4-3, 3-1 District) seized the momentum in the second period and put together a 20-5 run to take a 31-22 advantage into halftime.
After trimming the deficit to 40-33 at the end of the third quarter, Marshall County came up four points short of the Lady Spartans despite outscoring Summit 15-12 in the fourth period.
Teondra Crawford accounted did most of the damage for the Lady Spartans and poured in a game high 27 points. Caroline Patrick followed Crawford with 10 points, while Sade Bayan and Kylie Hicks added five and four points respectively.
Having swept the season series against Summit last year, the Tigers jumped out to a 16-11 lead in the first quarter before the Spartans (3-4, 2-2 District) went on a 14-9 run in the second period to tie the game at 25-25 at the break.
After MCHS outscored Summit 13-10 in the third quarter to pull ahead 38-35, the Spartans used an 8-4 spurt to seize a 43-42 lead late in the fourth period.
The Tigers, however, came on strong down the stretch and outscored Summit 7-2 over the final 2:29 of the game to escape with the four point win.
Kevin Peterson led three Marshall County players in double figures with 15 points, while Chris Walker and Aaron Hobbs added 14 and 10 points respectively. Barry Mayes and Malek Sain also notched three points apiece for MCHS, and Cameron Bowers and Kasey Pleas both had two points.
Center Makinde London paced the Spartans with 16 points, while Malcolm Walker and Phillip Sheary tallied nine and six points respectively.