Laura Diaz, left, and her caddie studies her path to cup on Hole 9 during the Marathon Classic.
Blade/Lori King
Laura Diaz tees off on #1 during the first round of Marathon Classic.
BLADE/JEREMY WADSWORTH
Laura Diaz putts on #2 hole during the first round of Marathon Classic.
BLADE/JEREMY WADSWORTH
Laura Diaz tees off on #2 during the first round of Marathon Classic.
BLADE/JEREMY WADSWORTH
Laura Diaz reacts to her putt on #2 hole during the first round of Marathon Classic.
BLADE/JEREMY WADSWORTH
Fans applaud Laura Diaz as she finishes at Hole 9.
Blade/Lori King
Emma Jandel misses a birdie on Hole 10 to stay in the lead at 4 under.
Blade/Lori King
Maude-Aimee Leblanc walks past Kelly Tan as Tan reacts to missing a birdie on Hole 8.
Blade/Lori King
Maude-Aimee Leblanc walks past Kelly Tan as Tan reacts to missing a birdie on Hole 8.
Blade/Lori King
Jackie Gallagher-Smith hits out of a sand trap during the Marathon Classic.
Blade/Lori King
Emma Jandel, of Dayton, who took an early lead, reacts to a missed birdie on Hole 9.
Blade/Lori King
Becky Morgan watches her missed putt on Hole 9.
Blade/Lori King
Laura Diaz reacts to applause as she goes to 6 under on Hole 17.
Blade/Lori King
Laura Diaz tries to coax her ball into the cup on Hole 9.
Blade/Lori King
Laura Diaz tries to coax her ball into the cup on Hole 9.
Blade/Lori King
Laura Diaz passes by her 8 under score after going 9 under on Hole 8.
Blade/Lori King
Laura Diaz goes 9 under on Hole 8 during the Marathon Classic.
Blade/Lori King
Fans follow Laura Diaz onto the Hole 8 green during the Marathon Classic.
Blade/Lori King
Leader Laura Diaz takes a good look at the hole.
Blade/Lori King
Kelly Tan misses a birdie on Hole 9 to stay at 3 under.
Blade/Lori King
Marissa Steen talks about her round during the Marathon Classic.
BLADE/JEREMY WADSWORTH
Mo Martin hits the ball on the #18 fairway.
BLADE/JEREMY WADSWORTH
Chella Choi practices her shot on #18 under a bright blue sky.
BLADE/JEREMY WADSWORTH
Katie Burnett signs an autograph for Sierra Bengi , 12, of Plainfield, Indiana, during the first round of Marathon Classic.
BLADE/JEREMY WADSWORTH
Cristie Kerr hits out of the rough as her caddy watches the ball fly by on #18.
BLADE/JEREMY WADSWORTH
Austin Ernst ends the day at 5 under to tie for 2nd place.
Blade/Lori King
So Yeon Ryu lines up her shot on the #18 hole.
BLADE/JEREMY WADSWORTH
Mo Martin lines up her shot on the #18 hole.
BLADE/JEREMY WADSWORTH
From left: Fans Tommy Hurley, Brad Smith and Ryan Hacker watch the tee shots from Austin Ernst's group.
Blade/Lori King
Austin Ernst, left, high-fives Jacqui Concolino after Ernst birdied the18th Hole.
Blade/Lori King
Ai Miyazato, at 4 under, hits on hole 3.
Blade/Lori King
Austin Ernst reacts to birdying the 18th Hole.
Blade/Lori King
Sue Kim measures up her putt on Hole 18.
Blade/Lori King
Jacqui Concolino hits out of the Hole 5 sand trap.
Blade/Lori King
Austin Ernst retrieves her ball from the 18th Hole cup after birdying.
Blade/Lori King
Mo Martin birdies the #18 hole during the Marathon Classic.
BLADE/JEREMY WADSWORTH
Austin Ernst signs an autograph for her standard bearer Alex Prymas, 10, of Sylvania, after completing her first round.
Blade/Lori King