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Articles
Clarifying
Track Times & Distances
It’s
track season! I’m going to share some things I’m
sure you’ve all wondered about regarding running on
tracks and timing track distances.
Distances
Myth: All tracks are the same.
Fact: Though nowadays any track built from
the late 70s on are 400 meter tracks, anything built before
then may still be a 440 yard track (a “true” quarter
mile). We should all know by now that accepted rules of the
track include allowing the fastest runners to run on the inside;
slower runners move outside to allow the faster runners to
pass by. If you run in an outside lane the whole lap you do
run further. However, since track lanes vary from 36-42 inches
in width, it is not possible to make a single statement of
how far you have run in “lane 2” or “lane
3”. It is approximately 10-13 meters longer per lap
in each subsequent lane outwards. So, running entirely in
lane 8 is up to 70-91 meters longer than lane one. It just
depends on the track.
Surfaces
Myth:
All tracks are equally fast.
Fact: Most middle school tracks are dirt.
There are some old cinder surfaces out there too. These are
dramatically slower than those of all-weather composition.
Even amongst all-weather tracks there is a wide variation
in there make up. Indoor tracks vary wildly with banking,
surface bounce and degree of curves. The geometry of a track
also effects speed of a track. It seems reasonable to assume
that an outdoor track has 100 meters on the straight-aways
and 100 meters for each curve. This is not true. Some tracks
have sharper shorter curves and others have longer gradual
curves. At elite level competitions they talk about “fast”
tracks. These are tracks that all elements optimize performance
and effort. Those are where numerous records are set.
Wind
Myth: A little breeze won’t effect my times.
Fact: In the 100, 200, 100 hurdles, 110 hurdles
and long & triple jumps, athletes can be significantly
aided by a strong wind at their backs. In the 1930s, the sport
worldwide adopted a standard of 2.0 meters per second (4.473
miles per hour) as the maximum legal wind limit for record
purposes. This is only a light breeze. By the way, you will
always loose more time running into the wind than you will
gain running with the wind. Therefore, there is no such thing
as wind aided times in any event longer than the 200 (half
a lap).
Markings
Myth: All the markings on a track are standard, correct
and accurate.
Fact: The variation on tracks is remarkable.
There are standards set by the national governing organizations
(NFHS & USATF). That doesn’t mean they are followed.
Every mark, line and triangle on a track has recommended color
coding and required locations.
Timing
Myth:
Since my wrist chronograph records in 100ths of seconds it
is more accurate than old-time stop watches.
Fact: The issue isn’t the time piece
accuracy, it is the operator. USATF Rule 165 requires that
all hand timing is done in 10ths. Any 100th is rounded up
to the slower 10th. Fully Automatic Timing (FAT) times to
the 1000ths rounded to slower 100th. In any non-stadium event
(road races) times are rounded to the next slowest full second.
The bottom line is that when athlete A has run 10.0 (hand)
and athlete B has run 10.00 (FAT), we can say with complete
confidence that athlete B ran faster. Athlete A's actual time
was probably anywhere from 10.10 to 10.40, but we'll never
know for sure. For the 100, 200, 400, 100 hurdles, 110 hurdles,
300 hurdles and 4 x 100 Relay, the accepted conversion is
to add 0.24 seconds to the hand time. That is, you cannot
assume that the hand time was faster unless it was a least
0.24 seconds faster than the best FAT recorded.
English
versus Metric
Myth: Four
laps of the track is a mile. And this is a standard race distance.
Fact: Four laps of most tracks (depending
on construction date – see above) is 1600 meters. A
mile is 1609.34 meters. So, four laps are really 1749.78 ft.
or .99419 miles. You need to start your “real”
mile 9.34 meters before the start line to be a mile. 400 meters
is also 437.445 yards. The accepted conversion is to add 3/10th
of a second (0.3 second) to your 400 meter time to find your
“true” quarter mile time.
Standard
race distances worldwide are 1500 meters and the mile. In
US high schools (yes, only the US as far as I can determine)
they use 1600 meters as a standard race. It is a vestige of
the “4-lapper” mile. It’s easy to conduct.
So, they run it. A 1500 is three and three quarter laps (roughly
– see above caveats). It is 1.5 kilometers which is
.93205 of a mile. This is commonly called the “metric
mile”. This is a worldwide standard track race.
So,
the key points are these:
• In non-FAT timed running we do not calculate times
to what is possible through instruments but must use the
human element as the limiting factor.
• Your times on any given track may not equate to
any other track. But, any track is better than no track.
• You run farther on the outside lanes – add
approximately 10 meters to your running distance per lane
you move outside (and remain in that lane).
• For practical purposes, if you are running your
laps in lane one within a second or so of your goal paces
- despite all the variations discussed on a “standard
track” - is reasonable almost anywhere anytime. Only
at the elite levels, where they can run 400s within 10ths
of seconds of each repeat does it become more critical to
know what you are running on.
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