Which Ironman event gives me the
best chance of qualifying for |
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HAMMOND
QUALIFICATION COEFFICIENT [HQC] YOUR RACE
SELECTION METHODOLOGY |
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INTRODUCTION
Is this a
question that you have asked yourself? More than likely you have if you have
aspirations for
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ELITE REFERENCE TIME [ERT]
The first objective,
and really the key to the whole exercise, is to neutralise the differences
between the races. There have been studies done to achieve this by comparing
the performance of the Kona participants at Kona versus their qualifying
races in order to quantify the relative difficulties of the qualifying
events. I think this approach certainly has its merits, but also has some
pitfalls. 1. The
condition of the athletes in the two races. Did they peak better for Kona
than they did for their qualifying race? 2. The time
difference between the qualifying event and Kona. 3. The
differences in the courses. Qualifiers from courses with large bike
elevations are typically less suited to Kona. Will a comparison of their
respective performances lead to a conclusion that they qualified from a
weaker event? I intend
to perform that analysis at a later date as a secondary validation; however
my initial approach at determining the relative strengths of the race is via
another route. I have taken the times of the top 5 finishers in each race
(including age groupers that came in the top 5) and calculated the average of
that time. This time I am calling the Elite Reference Time [ERT]. Why the top 5 finishers? Well just looking
at the winning time would subject the ERT to large fluctuations based on the
quality of the winner. Taking an average over more athletes statistically
yields a more stable result. So why not the first 10 or 20 finishers? Well at
some point if we go too deep then the strength in depth of the Male Pro field
will end up being judged rather than the race itself. Somewhere between these
numbers there lies a compromise and I have chosen five as the number. A
future opportunity for study would be to see how the analysis changes based
on that choice. Another
important point to make about the ERT is that it is specific to each race and
not each event. What I mean here is that Ironman UK is the event and Ironman
UK 2006 is the race. Because of a bike course change the ERT varied
significantly between IMUK 2005 and IMUK 2006. I have
analysed all the course data available to me going back as far as 2002. I have
had to make one or two judgement calls along the way and I’ll explain them
here so that you understand what has been included and omitted. 1. Shortened
races (NZ 2006, Malaysia 2005, Korea 2006 etc) have not been included 2. For events
with a complete change of venue and management like Ironman 3. The
reference times of What we
then have is the reference table Table 1. (right) which shows the ERTs for
each race for each year. I have calculated an average ERT for the event but
for the reasons stated earlier, please treat this average with extreme
caution. Also note that I have assigned the races by the qualification
season. So the Now there
is a huge assumption here that most of you will have noticed already. We are
assuming that the strength of the men’s field is the same in each race.
Obviously the strength of the men’s field will vary with the following
factors. 1. Prize
Money 2. Pro Slots
Available 3. Travel And
Expense to get to the location. Note now the value of my Grand Prix table
to determine in which geographical areas the strength of the field lies. 4. Proximity
in the calendar to 5. Course
type. There are “grimpeurs” and “rouleurs” and most of the really top pros are not
climbers since only 3-4 courses really provide a significant elevation to be
considered. So these could be argued as specialist courses. I’m not for a
moment saying that Herve Faure,
Marcel Zamora, Gilles Reboul are not top quality
triathletes. They absolutely are, as Tim Deboom
found out in 2005, however I would suggest that their prize was the “maillot
a pois” rather than the “maillot jaune”. 6. Course
history, conditions and organisation. Will the weather conditions in the
courses that were shortened and nearly postponed in recent years weaken the
field? However
that being said, the data show a good level of consistency year over year for
the same events and the results do bear out the levels of difficulties of
each course as anecdotal reports have indicated over the years. I would
therefore advance that this table serves us well in determining a valid
reference time for each race for each year. |
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M40 AG |
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|
|
|
|
|
|
HQC |
Season |
|
|
|
|
|
|
Event |
2002 |
2003 |
2004 |
2005 |
2006 |
2007 |
Grand Total |
Lanzarote |
25.4% |
|
20.6% |
21.4% |
19.2% |
|
21.7% |
|
|
|
|
22.5% |
20.3% |
|
21.4% |
|
|
|
|
19.0% |
16.9% |
27.4% |
21.1% |
|
20.1% |
25.1% |
21.0% |
20.4% |
18.8% |
|
21.1% |
|
|
|
|
|
23.4% |
18.5% |
20.9% |
|
|
|
|
19.6% |
22.1% |
20.6% |
20.8% |
|
|
18.6% |
23.0% |
23.6% |
17.8% |
|
20.8% |
|
|
25.8% |
21.1% |
15.2% |
20.0% |
|
20.5% |
|
19.7% |
20.1% |
23.0% |
21.2% |
|
16.5% |
20.1% |
|
20.5% |
19.3% |
|
20.1% |
|
|
20.0% |
|
|
18.9% |
21.0% |
18.1% |
22.9% |
13.8% |
18.9% |
|
|
17.4% |
23.6% |
14.3% |
19.6% |
|
18.7% |
|
|
|
|
18.2% |
19.2% |
|
18.7% |
|
|
18.0% |
20.5% |
16.2% |
19.4% |
|
18.5% |
|
|
|
|
17.3% |
19.4% |
|
18.4% |
|
|
16.8% |
15.1% |
18.0% |
23.4% |
|
18.3% |
|
|
|
|
19.4% |
16.3% |
|
17.9% |
|
19.9% |
8.1% |
18.1% |
20.4% |
16.1% |
|
16.5% |
|
17.7% |
17.9% |
13.5% |
13.4% |
14.8% |
14.4% |
15.3% |
|
|
|
|
13.1% |
23.2% |
6.0% |
14.1% |
Grand Total |
20.6% |
18.7% |
20.0% |
18.5% |
19.6% |
16.7% |
19.0% |
Now that we
have established this the next step is simply to determine the time of the
last qualifier in each age group for each race to determine the degree of
difficulty for qualification. Let’s
calculate this as follows. In IM France 2006 the time recorded by the last
qualifier in the M40-44 age group was 10h33m42s by a M. Olivier Bianchi. This
was 20.3% more time that the reference time for this event 8h46m42s.
I call
this the number (20.3%) the Qualification Coefficient. Actually I take that
back. I’m now going to call this the Hammond Qualification Coefficient [HQC]
and since you’re all getting this for free you can jolly well call it that
too. Can’t you?
So all you
need to know in fact is which race gives you the highest HQC. i.e. which race allows you to run the slowest relative to
the elite reference time and still qualify for
For my age
group I was then able to create the table showing the HQC for each race each
year (Table 2)
I am
desperately trying to figure out how to publish my database in an interactive
format so that you simply have to click your AG to get Table 2 for your own
AG. However I’m still struggling with the technology for the moment. In the
interim, please click on the following link to get the HRQ Table for your own
AG
THE ROLL DOWN FACTOR
Slot Acceptance Rate |
Season |
|
|
|
|
|
|
Event |
2002 |
2003 |
2004 |
2005 |
2006 |
2007 |
Grand Total |
|
|
|
|
|
94.3% |
94.0% |
94.2% |
|
95.4% |
84.7% |
90.4% |
83.9% |
91.1% |
91.7% |
89.4% |
|
81.8% |
92.0% |
|
81.3% |
|
|
85.0% |
|
|
87.8% |
84.2% |
91.8% |
72.0% |
89.0% |
85.0% |
|
|
|
|
81.9% |
78.6% |
86.1% |
82.2% |
|
|
|
|
72.3% |
79.3% |
94.9% |
82.2% |
|
|
77.2% |
76.1% |
94.3% |
80.6% |
|
82.1% |
|
|
|
|
88.1% |
77.1% |
64.4% |
76.6% |
Lanzarote |
61.4% |
|
73.4% |
85.6% |
79.3% |
|
74.9% |
|
|
74.4% |
74.2% |
77.5% |
67.6% |
|
73.6% |
|
|
|
|
67.2% |
76.6% |
|
71.9% |
|
|
|
|
70.3% |
73.0% |
|
71.6% |
|
58.4% |
76.3% |
67.2% |
64.9% |
|
77.1% |
68.8% |
|
|
54.3% |
57.2% |
82.4% |
81.1% |
|
68.8% |
|
|
|
|
56.5% |
79.6% |
|
68.0% |
|
61.9% |
58.5% |
70.5% |
62.3% |
67.4% |
|
64.2% |
|
|
|
|
67.4% |
59.9% |
|
63.7% |
|
69.0% |
29.5% |
73.6% |
66.8% |
68.9% |
|
61.4% |
|
|
60.9% |
56.7% |
61.8% |
63.7% |
|
60.8% |
|
|
59.6% |
52.4% |
60.0% |
61.9% |
|
58.5% |
Grand Total |
70.8% |
68.6% |
70.5% |
74.6% |
75.2% |
85.3% |
74.0% |
Although I
think the pure analysis does not really require it, I will address the roll
down factor as the question is frequently asked.
Evidently not
everyone who earns a qualification slot actually wants to go to
Here are
some interesting facts about the rolls downs.
1. Globally
the acceptance rate of earned Hawaii Slots has changed as follows over recent
years
a. 2003 56%
b. 2004 63%
c. 2005 68%
d. 2006 66%
2.
3.
Slot Acceptance Rate |
Season |
|
|
|
|
Area |
2003 |
2004 |
2005 |
2006 |
Grand Total |
|
68% |
69% |
79% |
72% |
73% |
AFR |
|
|
100% |
40% |
70% |
ASA |
67% |
68% |
61% |
61% |
63% |
EUR |
20% |
50% |
61% |
70% |
58% |
LAM |
50% |
60% |
57% |
56% |
56% |
Grand Total |
56% |
63% |
68% |
66% |
65% |
So please note that whilst
TABLE 3 Event |
City |
Inaguration Year |
Total |
Std Dev |
|
|
2002 |
120 |
1.26% |
|
|
2003 |
80 |
2.83% |
|
Taupo |
1985 |
80 |
1.35% |
|
|
2005 |
80 |
1.46% |
|
Maddison |
2002 |
80 |
1.79% |
|
|
1983 |
80 |
2.68% |
|
|
1999 |
80 |
2.42% |
|
|
1999 |
80 |
0.59% |
|
|
2002 |
75 |
5.00% |
|
Port |
1985 |
70 |
0.59% |
Lanzarote |
Lanzarote |
1992 |
60 |
2.45% |
|
Nice |
2005 |
50 |
1.27% |
|
Goto |
2001 |
50 |
1.81% |
|
|
2001 |
50 |
4.38% |
|
|
1999 |
50 |
3.90% |
|
Seogwipo |
2001 |
50 |
0.56% |
|
Langkawi |
2001 |
35 |
0.00% |
|
|
2005 |
30 |
1.22% |
|
Sherborne |
2005 |
30 |
1.79% |
|
Busseltown |
2004 |
30 |
5.84% |
Now that we
have the mechanism in place, please realise that this is just a tool and
apply some common sense in using it. Also remember to apply the other factors
that will weigh into the equation.
First of
all I would treat this like I would if I were evaluating an investment.
Remember that phrase “past performance is no guarantee of future results”.
Well that is indeed true, but for some investments it is truer that others.
This is no different. The key word is volatility. If this chart is going to
play a large roll in my quest for Kona, then I’m going to study the history
very closely. So whilst top of the pile with the highest HQC is
In the
same vein another question is “how long has the race been in going on?”
Ultimately
a large number of slots available is a good thing, but not for the obvious
reason. The reason that it is a good thing is that it will provide more
consistency in the roll down factor and therefore allow a more solid
projection of the next year’s required qualifying time. With 2 slots available
at
Mathematically
a good way to look at the volatility is to measure the Standard Deviation of
the data, the lower the Standard deviation, the greater chance that future results will indeed reflect past performance.
As an added tool the Table 3 shows the three factors to consider along with
the HQC to validate your choice, the inauguration year, the Total slots
available and the Std Deviation (for the M40-44Age group only)
My advice
to your overall approach would be as follows.
1. Determine
the order of events by HQC for your Age Group
2. Eliminate
the events that fail to meet the required your required statistical certainly
standards
3. Eliminate
the events that do not meet your other constraints in terms of course type,
calendar placement, cost, travel and registration
availability.
4. From what
is left, the event with the highest HQC should be your choice.
For the
2007 season I selected
I added
I
sincerely hope that this helps you make your best choice in your personal journey
to Kona. Good Luck and Hope to see you some day on the
1. Obtain
more historical data from 2002-2004
2. Include
data from 70.3 Events with Hawaii Qualifying slots
3. Conduct
Kona performance versus qualifying race performances to validate Elite
Reference Times
4. Add HQC
tables for guaranteed qualification place. (i.e. if there were 5 slots
available, what was the HQC for the time of the 5th place person)
5. Add
complete analysis for 70.3 Florida World Championship qualification
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Any comments corrections
and critique of this analysis will be warmly received and considered for
improvement. Please send to neil@neilhammond,com