Here is a good one. Canoe/kayak placed below Ping Pong.
This was copied from the Sailing Scuttlebutt digest.
"When ESPN went about listing the top 60 most demanding sports, they
identified 10 categories, or skills, that go into athleticism, and then
assigned a number from 1 to 10 to the demands each sport makes of each of
those 10 skills. By totaling and averaging their responses, they arrived at
a degree-of-difficulty number for each sport on a 1 to 100 scale. That
number places the difficulty of performing each sport in context with the
other sports we rated. When the list was done, they found that Boxing (1) is
the most demanding sport -- and that Fishing (60) is the least demanding
Here is a link to the list.