Sikeston managed just two hits off Notre Dame hurler Blankenship, who struck out five.
Jessica Owens had a double and Kerri Jones had a single for the Lady Bulldogs' lone hits.
"As far as I know, they've only lost one game," said Sikeston head coach Jenny Hobeck. "They're a pretty strong team. Their pitcher was tough and they're a pretty good hitting team. We played pretty good defense for a couple of innings but they scored four runs in the third and we kind of fell apart."
Notre Dame led just 1-0 entering the third inning.
Kayla Crocker took the loss on the mound for Sikeston. She allowed nine hits and five walks with one strikeout in five innings.
Sikeston will play at Cape Central today at 4 p.m.
BENTON - The Kelly softball team won a big SEMO Conference matchup with Jackson on Monday by a score of 1-0.
Kelly scored its lone run in the second inning when Bridgett Riley scored on a Cara Scherer single.
Riley walked, was sacrificed to second by Dana Essner and moved to third on a single by Allison Johnson before scoring.
"Scherer came through with a big game winning RBI," said Kelly softball coach Melanie Heuring. "We manufactured the run well and did a good job."
Kelly's Natalie Lewer pitched all seven innings, striking out nine and walking none. She allowed five hits.
She did real well on the mound today," said Heuring. "We also had zero errors so we were perfect in the field. We're 3-0 in the SEMO Conference and this is a big win over a 4A school."
Ashley Kern, Johnson, Scherer and Alana Burford all had hits for Kelly.
Kelly (9-2) will play at Poplar Bluff today at 4 p.m.
JACKSON - The Kelly softball team finished in seventh place out of 16 teams in the Jackson Tournament on Saturday.
In the Lady Hawks' first game, they beat an undefeated Cor Jesu team 2-1.
Bridgett Riley was the winning pitcher. She also collected two hits. Monica Senciboy also had two hits.
In Kelly's second game, Fox defeated the Lady Hawks 2-1. Natalie Lewer struck out nine and allowed four hits. Riley went 3-3 in the game.
Lafayette defeated the fatigued Lady Hawks in the third game 8-2. Riley was the losing pitcher.
Kelly defeated Nerinx Hall 5-0 in their final game. Lewer picked up the win, allowing two hits and striking out 10. Riley went 2-4 in the game. She was 7-13 in the tournament. Lewer had 19 strikeouts in her two games in the tournament.
"I'm a little disappointed -- we should've won the second game," said Heuring. "The girls were kind of tired in the third game, but we came back real strong in the fourth game and shut them out. This was a good experience to be able to play these larger schools and good competition. This is a real good tournament at Jackson."