Proctologically Violated©® said:Awl--
I'm interested in how runners pace themselves during a marathon.
At a time of 2:08, the average mile is 4.89 min/mile... !!!! At 2:30, avg
times would be 5.73 min/mile.
If I were to ever achieve ONE five-minute mile, I'd be in 7th heaven....
I'm curious as to what the relative times are at various points during the
race--1st mile time, 5th, 10th, 15th, 20th, 26th.
The winners tend to run pretty close to even splits. You can check the splits
for 10k/half/20 miles/finish in the New York marathon by looking at the results
archive
http://www.nyrrc.org/cgi-bin/start.cgi/mar-programs/archive/archive_search.html
Generally, the top guys run fairly even splits overall.
You do get some uneven splits a little further back, because a lot of guys will
try to follow the lead pack, but get dropped. So you might get some guy who runs
a 2:20 by running the first half in 1:05 and the second half in 1:15.
That's not because this is a good way to run 2:20, it's because the guy was
trying to hold on to the lead pack and blew up.
One of the most uneven splits ever was run by Steve Jones. 61:40 at the half,
and 2:07:13 overall (just off the world record of the day) His half marathon
split is a fairly competitive half-marathon time (I think it was just off the
half marathon record of the day). Current WR for the half is 59:xx, but very
few have gone sub 60.
Quoted message said:My impression/intuitive sense is that the relative times would be pretty
constant throughout, as 5 min miles are already so fast,
Very fast for us. These guys are very light (~130lb) and have very strong
aerobic systems. Like a mini with a V8 engine or something. Most of the fast
marathoners are able to run sub 4:30 for 10k, so a 5 minute mile for them
is like a 6mpm 10k guy running a 6:40 mile, or a 7mpm 10k guy running about
7:45. Brisk, but not really fast.
Quoted message said:I don't see a
runner wanting to do them much faster in the beginning. Also, in the
snippets of marathons I've watched, the top 5-10 seem to cross the finish
line at a mighty good clip.
Curious as to the details. Any markedly slow points during the race? If so,
physiological reasons?
Really depends on how the race unfolds. Sometimes, the pack may run
conservatively because no-one wants to take the lead, so you might get a
fast finish. But if there's a ``Paula Radcliffe'' running, the pack usually
shakes down not long after the half way mark, and it becomes a war of attrition
with the leaders relentlessly pushing the same hard pace, while the slower guys
fall off/slow down.
Cheers,
--
Donovan Rebbechi
http://pegasus.rutgers.edu/~elflord/