Diamond/Pearl Competitive Resources

Mechanics and Guides

1v1 Metagame Guide
A guide to the 1v1 metagame, thanks to badalcristiano et al.
DP Damage Formula
An insight on damage calculation in Diamond and Pearl, thanks to X-Act et al.
A Beginner's Guide to Distributing EVs
A guide to efficient EV distribution, courtesy of umbarsc et al.
Nature, IV, and Hidden Power Combinations for Legendary Pokemon
A listing of all useful nature, Hidden Power, and IV combinations for legendary Pokemon, by Rising_Dusk et al.
Battle Mechanics at Level 50
An overview of stat and damage calculation when playing with level 50 Pokemon, thanks to Ditto.
Move Priority
A guide to move priority in DPP, thanks to david stone and darkie.
Move Restriction Guide
A closer look at the workings of moves, items, and abilities that restrict the move options available to Pokémon, thanks to TheMaskedNitpicker.
Stats in DP
A guide to stat modifiers in DP, thanks to Arseus and david stone.
Status in DP
A guide to status in DP, thanks to Arseus and david stone.

Tier Specific Guides

Ubers

Metagame Primer
A brief introduction to the Uber metagame.
Speed Tiers
A guide to the Magic Speed Numbers in the Ubers metagame, thanks to TheMaster42 et al.
Basic Guide to Ubers
A beginner's guide to battling in DPP Ubers, thanks to Great Sage et al.
Advanced Guide to Ubers
An advanced guide to battling in DPP Ubers, thanks to Great Sage et al.
Arceus Guide
A detailed guide to Arceus, thanks to firecape and Theorymon.

OverUsed (OU)

Metagame Primer
A brief introduction to the OU metagame.
Speed Tiers
A guide to the Magic Speed Numbers in the OU metagame, thanks to TheMaster42 et al.

UnderUsed (UU)

Metagame Primer
A brief introduction to the UU metagame.
Speed Tiers
A guide to the Magic Speed Numbers in the UU metagame, thanks to jumpluff et al.

NeverUsed (NU)

Metagame Primer
A brief introdution to the NU metagame.
Speed Tiers
DPP NU speed tiers, thanks to Honko.

Little Cup (LC)

Metagame Primer
A brief intrduction to the LC metagame.
Speed Tiers
A guide to the Magic Speed Numbers in the Little Cup metagame.
Little Cup EV Spreads Guide
A guide to achieving the maximum potential from EV points in Little Cup, thanks to eric the espeon and Oglemi.
Little Cup, Big World: A Guide to Little Cup
An analysis of the Little Cup Metagame, by ete, rewritten by macle and other various contributors.
Little Cup Legality Guide
A guide to move legality in Little Cup, courtesy of SwinubToupee

Sample Teams