THE GPI FORMULA
FAQs
Q How is my overall GPI score calculated?
A For each qualifying tournament a score is
assigned by multiplying the Buy-in Factor,
Q Won’t HR tournaments get an unfair amount
of points due to the buy-in factor?
AGING PERIOD PERIOD 1 PERIOD 2 PERIOD 3 PERIOD 4 PERIOD 5 PERIOD 6
LENGTH OF TIME FROM LESS THAN
TOURNAMENT START 0.5 YEAR
SCORES INCLUDED
5
0.5 YEAR
TO 1 YEAR
5
1 YEAR TO
1.5 YEARS
4
1.5 YEARS TO
2 YEARS
4
2 YEARS TO
2.5 YEARS
4
2.5 YEARS TO
3 YEARS
4
and my PoY score?
The differences between the GPI and PoY scores
are as follows:
The PoY does not take into account the Aging Factor.
The PoY allows thirteen scores in the latter half.
Tournaments must have occurred in the past 12
months to qualify for inclusion in your PoY score.
A
Q Why is a logarithmic function used to
calculate the Buy-in Factor?
It does so because the incremental increase in
the skill set of the field diminishes as the buy-in
amount increases. For example, the percentage increase
in buy-in between a $1500 and $2000 event is much
greater than the increase between a $19,500 and a
$20,000 buy-in. The increase in the Buy-in Factor
reflects this. You can see this effect when looking at
the chart below containing sample Buy-in Factors.
A
SAMPLE BUY IN FACTORS
Q I see players at the top of the rankings that
play HR tournaments regularly – isn’t a lot of their
score coming from these events?
Most of the points for the GPI Top 20 come from
buy-ins of $1,100 or less. Most players have a mix
of points from smaller and larger tourmaments.
A
Q Over time my GPI score for a given
tournament gets smaller, why is that?
This is due to the Aging Factor, a multiplier that
gives more points to tournaments played recently.
Each Aging Period has a different multiplier which
decreases as the Aging Period becomes less recent. The
chart below shows the GPI scores over time for winning
a $1,000 buy-in tournament with a field of 2,500 players.
A
GPI SCORES OVER TIME
250
200
4
BUY-IN FACTOR
THE GPI FORMULA
Q What is the difference between my GPI score
No. The GPI formula was designed to avoid that.
There are a couple of different ways it does this:
The use of the logarithmic function when calculating
the Buy-in Factor.
A cap is placed on the buy-in at $20k. Any buy-in
greater than $20k is treated as if the buy-in was only
$20k. (Also, all tournaments with a buy-in smaller
than $400 are treated as if the buy-in was $400.)
A
GPI SCORE
Finishing Factor, and Aging Factor. That score is then
multiplied by ten to give it a larger scale.
Each of those scores falls into one of six time periods,
called GPI Aging Periods. The sum of the top scores in
each Aging Period makes up the total GPI score.
150
100
50
3
0
2
PERIOD 1 PERIOD 2 PERIOD 3 PERIOD 4 PERIOD 5 PERIOD 6
AGING PERIOD
1
Q Won’t the winner of the WSOP Main Event
BUY-IN
18,500
20,000
17,000
15,500
14,000
12,500
9500
11,000
8000
6500
3500
5000
500
2000
0
get an extremely high score due to the field size in
calculating the Finishing Factor?
No. A cap of 2,700 players is placed on the field
size. Any tournament with a field size larger than
2,700 players will be treated as if the field was 2,700.
A
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