[weby]

Yes, there is a problem, but it is the opposite, the jump distances are too long:

So someone with move 5(average person comes from DX 10, HT 10) and no training in jump skill jumps with running start and time: (2*(5+5))-3=17 feet.

That is more than the 1922 women world record.

Someone with move 6(HT 12, DX 12), again no training gets (2*(6+6))-3=21 feet.

That is more than the 1960 women world record.

Someone with move 7(HT 14, DX 14), again no training gets (2*(7+7))-3=25 feet.

That is more than the current women world record.

Apparently in GURPS someone who is not cinematic in attributes but no training and no extra effort used jumps better than any woman athlete.

Someone with move 8(HT 14, DX 14 and +1 move), again no training gets (2*(8+8))-3=29 feet.

That is about the same as the superb mens' world record that held from 1968 to 1991..

And finally someone with move 9(HT 14, DX 14 and +2 move), again no training gets (2*(9+9))-3=33 feet.

They could just stroll into a world level competition and break the world record by almost 4 feet..

When doing competition at world level I would expect people to do extra effort. Thus trying to add, say 15%-25% to that and failing often, but when they succeed they get the record..

So then a human maximum (By basic set: DX 20, HT 20 +2 speed +3 move=move 15) person would jump 57 feet, they would place well in triple jump without extra effort and just doing one jump..

Also note that it takes really hard training in jump skill to to get better than the basic score.