Straka leads Olympic golf on day of low scoring, surprises
Japan's Hideki Matsuyama hits a tee shot on the 13th hole during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Japan's Hideki Matsuyama hits a tee shot on the 13th hole during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Jul. 28, 2021 11:21 PM EDT
United States' Patrick Reed plays a shot from a bunker on the 11th hole during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

United States' Patrick Reed plays a shot from a bunker on the 11th hole during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Jul. 29, 2021 12:26 AM EDT
Jazz Janewattananond, of Thailand, smiles after hitting from the 18th tee during the first round for the men's golf event at the 2020 Summer Olympics, Thursday, July 29, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan, (AP Photo/Matt York)

Jazz Janewattananond, of Thailand, smiles after hitting from the 18th tee during the first round for the men's golf event at the 2020 Summer Olympics, Thursday, July 29, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan, (AP Photo/Matt York)

Jul. 29, 2021 04:36 AM EDT
Austria's Sepp Straka hits a tee shot on the 16th hole on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Austria's Sepp Straka hits a tee shot on the 16th hole on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Jul. 28, 2021 10:07 PM EDT
Japan's Hideki Matsuyama watches his tee shot on the fourth hole during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Japan's Hideki Matsuyama watches his tee shot on the fourth hole during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Jul. 28, 2021 08:36 PM EDT
Juvic Pagunsan, of the Philippines, watches his shot from the 12th tee during the first round for the men's golf event at the 2020 Summer Olympics, Thursday, July 29, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan, (AP Photo/Matt York)

Juvic Pagunsan, of the Philippines, watches his shot from the 12th tee during the first round for the men's golf event at the 2020 Summer Olympics, Thursday, July 29, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan, (AP Photo/Matt York)

Jul. 29, 2021 04:55 AM EDT
United States' Justin Thomas dries his sweat during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

United States' Justin Thomas dries his sweat during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Jul. 28, 2021 08:55 PM EDT
Rory McIlroy, of Ireland, left, and Collin Morikawa, of the United States, laugh after the first round of the men's golf event at the 2020 Summer Olympics, Thursday, July 29, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan, (AP Photo/Matt York)

Rory McIlroy, of Ireland, left, and Collin Morikawa, of the United States, laugh after the first round of the men's golf event at the 2020 Summer Olympics, Thursday, July 29, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan, (AP Photo/Matt York)

Jul. 29, 2021 04:36 AM EDT
Jazz Janewattananond, of Thailand, hits from the 12th tee during the first round for the men's golf event at the 2020 Summer Olympics, Thursday, July 29, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan, (AP Photo/Matt York)

Jazz Janewattananond, of Thailand, hits from the 12th tee during the first round for the men's golf event at the 2020 Summer Olympics, Thursday, July 29, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan, (AP Photo/Matt York)

Jul. 29, 2021 03:13 AM EDT
Mexico's Carlos Ortiz XX fails a putt on the second green during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Mexico's Carlos Ortiz XX fails a putt on the second green during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Jul. 28, 2021 07:38 PM EDT
Sepp Straka, of Austria, left, smiles with his caddy on the 15th green during the first round for the men's golf event at the 2020 Summer Olympics, Thursday, July 29, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan, (AP Photo/Matt York)

Sepp Straka, of Austria, left, smiles with his caddy on the 15th green during the first round for the men's golf event at the 2020 Summer Olympics, Thursday, July 29, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan, (AP Photo/Matt York)

Jul. 29, 2021 04:57 AM EDT
Japan's Rikuya Hoshino watches his tee shot on the first hole during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Japan's Rikuya Hoshino watches his tee shot on the first hole during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Jul. 28, 2021 06:54 PM EDT
Austria's Sepp Straka plays a shot from the second fairway during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Austria's Sepp Straka plays a shot from the second fairway during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Jul. 28, 2021 07:14 PM EDT
Belgium's Thomas Pieters hits a tee shot on the first hole during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Belgium's Thomas Pieters hits a tee shot on the first hole during the first round of the men's golf event at the 2020 Summer Olympics on Wednesday, July 28, 2021, at the Kasumigaseki Country Club in Kawagoe, Japan. (AP Photo/Matt York)

Jul. 28, 2021 07:10 PM EDT