Madelene Sagstrom beats the heat, takes Olympic golf lead

Lexi Thompson, of the United States, refreshes during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Andy Wong)

Aditi Ashok, of India, watches her tee shot on the second hole during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Madelene Sagstrom, of Sweden, celebrates after a birdie putt on the 15th hole during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Andy Wong)

Nelly Korda, of the United States, makes a putt on the 18th hole during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Andy Wong)

Madelene Sagstrom, of Sweden, walks on 13th green during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Madelene Sagstrom, of Sweden, covers her head with a towel during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Nelly Korda, of the United States, studies her putt on 18th hole during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Andy Wong)

Hyojoo Kim, of South Korea, stands under an umbrella on the 16th hole during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Aditi Ashok, of India, left, speaks with her caddie on the 15th hole during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Andy Wong)

Madelene Sagstrom, of Sweden, celebrates after a birdie putt on the 15th hole during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Andy Wong)

Jin Young Ko, of South Korea, lines up a putt on the 18th hole during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Andy Wong)

Inbee Park, of South Korea, stands under an umbrella on the 12th hole during the first round of the women's golf event at the 2020 Summer Olympics, Wednesday, Aug. 4, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)