GRAND RAPIDS, Mich. (AP) — Kelly Shon played her last six holes in 6 under for an 8-under 64 and a share of the lead with So Yeon Ryu on Thursday in the Meijer LPGA Classic.

Shon had a 7-under 29 on her final nine, the front nine at Blythefield Country Club. The former Princeton star played the five par-5 holes in 5 under with an eagle on No. 8.

Born in South Korea, the 26-year-old American is winless in four seasons on the LPGA Tour. She began the final-nine run with a birdie on the par-5 first, birdied the par-3 fourth, par-5 fifth and par-7 seventh, eagled No. 8 and closed with a birdie on the par-4 ninth.

The sixth-ranked Ryu birdied four of the par 5s in a bogey-free round.

She is winless this season after taking the major ANA Inspiration and Walmart NW Arkansas Championship last year. She also won the 2011 U.S. Women’s Open.

Anna Nordqvist, Su Oh and Celine Herbin shot 66.

Sophia Popov, Caroline Masson and Lee-Anne Pace shot 67, and Lexi Thompson, the 2015 winner, had a 68.