Jim Ryun
World records
Table:
Distance
Time
Date
City

880 yards
1:44.9
June 10, 1966
Terre Haute, IN

880 yards (indoor)
1:48.3
1967

1,500 meters
3:33.1
July 8, 1967
Los Angeles, CA

One Mile
3:51.3
July 17, 1966
Berkeley, CA

One Mile
3:51.1
June 23, 1967
Bakersfield, CA

One Mile (indoor)
3:56.4
February 19, 1971
San Diego, CA

Looking at the table named Jim Ryun — section "World records", respond to this question in a short sentence: What did Ryun achieve in world records in 1966? Return your answer as JSON: {"answer": "YOUR ANSWER"}.

answer: In 1966, Ryun set world records in the mile (3:51.3) and the half-mile (1:44.9).