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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
18 2
17 2
16 10
15 12
14 20
13 34
12 81
11 180
10 498
9 1.0k
8 2.5k
7 6.6k
6 16k
5 39k
4 95k
3 256k
2 884k
1 5.7m

Updated 2026-01-25 09:00 UTC