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P-Index Table 
The number of 5k runs that satisfy the rule 'p runs at least p times'.
For a P-index of 10, you would need to run more than 100 times, with at least 10 runs at 10 different events.
P-index Number of runners
19 2
18 1
17 4
16 9
15 13
14 21
13 45
12 99
11 201
10 535
9 1.1k
8 2.8k
7 7.0k
6 17k
5 41k
4 99k
3 266k
2 913k
1 5.9m

Updated 2026-04-20 13:00 UTC