DeWitt dropped a hard-fought first-round match in three sets, 4-6, 6-1, 7-6 (10-0), to Marshall's Kelsey Franklin, then reeled off three straight wins to reach the consolation final.
She defeated Ellyn Turner of Chillicothe 6-2, 6-1 in the first round of the consolation bracket.
In the consolation quarterfinals, DeWitt won 6-3, 6-2 over Courtney Jahn of Forsyth to advance to the consolation semifinals where she defeated Krista Toler of Bolivar, 6-4, 6-4.
"This was her best match in the consolation round," said DeWitt's mother and Sikeston coach Lynne DeWitt, of the Jahn match.
In the fifth-place match, DeWitt lost to senior Greer Mackie of Visitation Academy, 6-0, 6-0.
Said coach DeWitt, "This match was closer than the score indicates. Jenni was in every game and her play was outstanding."
With a bright future ahead for the sophomore Jenni, Lynne DeWitt said, "She has worked hard in the off-season to get to this point and she knows that she has to keep working for next year."
Kara True of Charleston also lost her first-round match, falling to Morgan Rainey of Barstow, 6-0, 6-0. True won her consolation match by default over Carley Markovitz of MICDS before being eliminated by Marshall's Franklin 6
-3, 6-2 in a consolation quarterfinal.
Susan Sullivan, a John Burroughs senior, defended her 2004 title with a 6-2, 6-1 victory over sophomore Rainey for the 2005 championship.
Freshman Stephanie Dudzinski of Barstow was third, junior Amy Ochs of Kirksville fourth.