How they calculate points if Front ?

[Blinding_Awesomeness]

For PVP Rewards:

PVP Rank
Slight variation in PVP Rank points due to hidden factors, but rare.
+500 for 3rd Place
+750 for 2nd Place
+1,000 for 1st Place
+1,000 for using Duty Roulette

Wolf Marks
Slight variation in Wolf Marks due to hidden factors, but rare.
+500 for 3rd Place
+750 for 2nd Place
+1,000 for 1st Place
+1,000 for using Duty Roulette

Series Level
Slight variation in Series Level points due to hidden factors, but rare.
+1,000 for 3rd Place
+1,250 for 2nd Place
+1,500 for 1st Place

Tomestones
Not determined by team performance. Must have the tomestone currency unlocked.
+50 Allagan Tomestones of Poetics
+50 Allagan Tomestones of Astronomy
+20 Allagan Tomestones of Causality

Job EXP
Depends on your level and possibly other hidden factors. It's about 50% of your current level regardless of the outcome when using Duty Roulette. I once calculated at 6% when rewards have been claimed.