Jumping and moving in Armor question

[Big Django]

Hi,

I get +4 racial bonus to running jumps if my base land speed is 10 feet faster than 30 feet and a -4 racial malus per 10 feet less.

How does armor influence this? If I am a Babarian +10 feet land speed in medium Armor with a restriction to 20 feet, do I get +4, 0 or -4?

What is the effect of the medium armor does it reduce my speed by 10 feet or does it limit it to 20 feet? In other words should a Babarian have expeditious retreat on (+30 feet enhancement to base land speed) and therefore have a base move unarmored of 70 feet, would this be 20 feet in medium armor or 60 feet?

Thank you

[Starglim]

If your land speed is 20 feet, you take a -4 penalty to Acrobatics checks to jump. You also apply your Armour Check Penalty to Acrobatics checks.

A barbarian whose race has a speed of 30 feet, in medium armour, reduces her speed to 20 feet, then adds +10 feet because her Fast Movement works in medium armour. Because she now has a speed of 30 feet, she has +0 to Acrobatics to jump, plus (or rather minus) her ACP.

With expeditious retreat, her base land speed is 60 feet, reduced to 40 feet by medium armour (p. 170), +10 feet for Fast Movement, totalling 50 feet with +8 to jump checks.

Note that haste doesn't change your base land speed, but your current speed, so with that spell her speed would be 60 feet.

[Big Django]

Starglim wrote:

If your land speed is 20 feet, you take a -4 penalty to Acrobatics checks to jump. You also apply your Armour Check Penalty to Acrobatics checks.

A barbarian whose race has a speed of 30 feet, in medium armour, reduces her speed to 20 feet, then adds +10 feet because her Fast Movement works in medium armour. Because she now has a speed of 30 feet, she has +0 to Acrobatics to jump, plus (or rather minus) her ACP.

With expeditious retreat, her base land speed is 60 feet, reduced to 40 feet by medium armour (p. 170), +10 feet for Fast Movement, totalling 50 feet with +8 to jump checks.

Note that haste doesn't change your base land speed, but your current speed, so with that spell her speed would be 60 feet.

Thanks!

So a Babarian in Medium armor would have a speed of 30 feet and would get +0 to acrobatics (jump) checks before ACP of course.

I assume this means that a Fighter in medium armor would have a base speed of 20 feet and get -4 to acrobatics (jump) checks in addition to his ACP?

A Babarian with an expeditious retreat potion would have a total speed of 50 feet and would get +8 racial bonus to jump checks + ACP

[Grick]

Starglim wrote:

A barbarian whose race has a speed of 30 feet, in medium armour, reduces her speed to 20 feet, then adds +10 feet because her Fast Movement works in medium armour. Because she now has a speed of 30 feet, she has +0 to Acrobatics to jump, plus (or rather minus) her ACP.

Tactical Speed: "Your speed while unarmored is your base land speed."

Unarmored, the human barbarian's base speed is 40' so she gets a +4 to jump checks. Because armor does not change your base speed, she keeps the +4 (but does suffer ACP)

Also, not that it matters in this example, but you apply Fast Movement before modifying the barbarian's speed because of any load carried or armor worn.