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A few weeks later, you get to wondering how many miles you have been averaging each week in swimming and running. You do a guestimate but it woul

The next day, you went for a run on your nearby greenway. You were pretty sure the distance was about 6 miles. But later that night you got to thinking. “I wonder what the exact mileage of my run was today. I once ran a half marathon in 1 hour and 32 minutes; I wonder if I ran at that pace at any point during my run today.”

So, you decided to take up the sport of triathlon. You hopped into the water at your local YMCA pool and began swimming laps. Things were fine for the first 4 laps, but then on lap 12 you couldn’t quite remember if it was lap 11, lap 12 or lap 13.

Triathlon Watches: A Guide To Choosing The Best Sport Watch

Triathlon Watches: A Guide To Choosing The Best Sport Watch - The Fun Times Guide to Running/Biking/Swimming