Dodge & Parry

Both Dodge and Parry work in the same way and characters by default will have a 3% chance to do either, however this is reduced by 1.5% for each level difference. Against a level 61 enemy a level 60 player will have 1.5% of each, level 62 (Dungeon Bosses) = 0% and level 63 (Raid Bosses) = -1.5%.

Parry

Monk

$Parry Chance = 3$

Druid

Druids cannot Parry.

Paladin Warrior

$Bonus Parry Chance = \frac{Bonus Str}{P} + \frac{Crit}{D}$

P = Avoidance per Primary = 138.75176305

D = Parry rating per % = 39

Crit is your crit rating

Bonus Str is your str minus your base str. If you hover over your str tooltip, the number in yellow is your bonus str.

$Diminished Parry Chance = \frac{Bonus Parry Chance}{Bonus Parry Chance * v + h}$

v = 0.01

h = 1/0.94

$Final Parry Chance = Base Parry Chance + \frac{Base Str}{P} + Diminished Parry Chance$

$= 3 + \frac{450}{138.75176305} + Diminished Parry Chance$

Base Str is your Str if you take all your gear off. If you hover over your Str tooltip, your base str is the 2nd number in white. For a lvl 60, this is an average of 450. Each race will have different amounts.

Death Knight

$Bonus Parry Chance = \frac{Bonus Str}{P} + \frac{Crit}{D}$

P = Avoidance per Primary = 138.75176305

D = Parry rating per % = 39

Crit is your crit rating

Bonus Str is your str minus your base str. If you hover over your str tooltip, the number in yellow is your bonus str.

$Diminished Parry Chance = \frac{Bonus Parry Chance}{(Bonus Parry Chance * v + h)}$

v = 0.01

h = 1/0.94

$Final Parry Chance = Base Parry Chance + \frac{Base Str}{P} + Diminished Parry Chance + DRW$

$= 3 + \frac{450}{138.75176305} + Diminished Parry Chance + DRW$

Dancing Rune Weapon (DRW) grants

Dancing Rune Weapon Effect#1 (40%) parry chance while active.

Demon Hunter

$Diminished Parry Chance = \frac{(Crit ⁄ D)}{(Crit ⁄ D) * v + h}$

Crit is your crit rating

D = Parry rating per % = 39

v = 0.02

h = 1/0.94 Final

$Parry Rating = Base Parry Chance + Diminished Parry Chance + Demon Spikes (If Active)$

$= 3 + Diminished Parry Chance + 15 (If Demon Spikes Active)$

Where Demon Spikes grants you

Demon Spikes Effect#1 (15%) Parry while active

Dodge

Death Knight Paladin Warrior

$Dodge Chance = 3$
Technically you could find an item with dodge rating which would follow diminishing returns, but that's super rare

Demon Hunter

$Diminished Dodge Chance = \frac{(Bonus Agi ⁄ P)}{(Bonus Agi ⁄ P) * v + h}$

P = Avoidance per Primary = 138.75176305
v = 0.02
h = 1/0.94
Bonus Agi is your Agi minus your Base Agi. If you hover over your Agi tooltip, your bonus agi is the number in yellow.

$Final Dodge Chance = Base Dodge Chance + \frac{Base Agi}{P} + Diminished Dodge Chance$

$= 3 + \frac{450}{138.75176305} + Diminished Dodge Chance$

Base Agi is your agi if you take all your gear off. If you hover over your agi tooltip, your base agi is the 2nd number in white. For a level 60, this is an average of 450. Each race will have a different value.

Druid

$Bonus Dodge Chance = \frac{Bonus Agi}{P} + \frac{Crit}{D}$

P = Avoidance per Primary = 138.75176305
D = Dodge rating per % = 39
Crit is your crit rating
Bonus Agi is your Agi minus your Base Agi. If you hover over your Agi tooltip, your bonus agi is the number in yellow.

$Diminished Dodge Chance = \frac{Bonus Dodge Chance}{(Bonus Dodge Chance * v + h)}$

v = 0.01
h = 1/0.97

$Final Dodge Chance = Base Dodge Chance + \frac{Base Agi}{P} + Diminished Dodge Chance$

$= 3 + \frac{450}{138.75176305} + Diminished Dodge Chance$

Monk

$Diminished Dodge Chance = \frac{(Bonus Agi ⁄ P)}{(Bonus Agi ⁄ P) * v + h}$

P = Avoidance per Primary = 138.75176305
v = 0.01
h = 1/0.94
Bonus Agi is your agi minus your base agi. If you hover over your agi tooltip, your bonus agi is the number in yellow

$Mastery = Base Mastery Points + \frac{Mastery rating}{Mastery Rating Per Percent}$

$= 8 + \frac{Mastery Rating}{35}$

$Final Dodge Chance = Base Dodge Chance + \frac{Base Agi}{P} + Diminished Dodge Chance + (Mastery * Elusive Brawler Stacks)$

$= 3 + \frac{450}{138.75176305} + Diminished Dodge Chance + (Mastery * Elusive Brawler Stacks)$