To determine who ran the fastest without doing any calculations, we can look at the distances that each person ran in the same amount of time (20 minutes).
- Anton ran 3.2 miles
- Betsy ran 3.4 miles
- Christine ran 2.6 miles
- Donovan ran 2.8 miles
From the distances alone, we see that Betsy ran the farthest distance of 3.4 miles. Since all runners were timed the same (20 minutes), the one who covered the most distance in that time ran the fastest.
Therefore, Betsy ran the fastest.