Your running pace is usually measured by your average mile time, or at least, by what I understand. I'm a competitive distance runner, so I'm also familiar with the term Race Pace - which is the pace you run at during a race. These are different.
Young hippos can only stay under water for about half a minute, but adults can stay submerged up to six minutes. Source(s): http://www.awf.org/wildlives/140 johnslat Â· 1 decade ago
Quick Answer. On land, hippos can run at speeds of 18-31 miles per hour, though they can only sustain this speed over short distances; in water, hippos can move at about 5 miles per hour. Hippos can easily outrun and are known to be quite aggressive toward humans. Continue Reading.