#1 - Enduring the Pain 7.93
Season 3 - Episode 12
#2 - Firing Squad 7.85
Season 5 - Episode 14
Artists battle for the top four spots; a top artist designs the tattoo that determines who stays and gets a shot at $100,000.
#3 - Eyes of the Beholder 7.84
Season 3 - Episode 10
The artists take on eyelid tattoos, and Tatu Baby fights back when Joshua goes on the attack. Then, a portrait challenge sees one canvas get inked with an image of Dave.
#4 - Ink Master Explosion 7.84
Season 4 - Episode 8
Week 8: Negative Space. Artists use gunpowder to make art in The Flash Challenge; gory tattoos of demons.
#5 - X-Men's Hugh Jackman 7.81
Season 4 - Episode 5
Week 5: Technical Precision. Superhero power tattoos in the flash challenge.
#6 - Picture Imperfect 7.81
Season 1 - Episode 7
Botched portrait tattoos are exhibited.
#7 - Heroes and Heads 7.81
Season 3 - Episode 11
Military heroes are honored on the deck of the USS Intrepid. Then, the artists ink head tattoos, and Oliver has a meltdown.
#8 - Skulls and Villains 7.79
Season 3 - Episode 9
#9 - Tatt Ganged 7.76
Season 4 - Episode 3
Week 3: Consistency. Bikini-clad twins get inked by the remaining 10 artists at once; an injury sends one artist to the emergency room.
#10 - Tag Team Tatt 7.74
Season 4 - Episode 10
Week 10: Flexibility. With no flash challenge, the artists are paired up and must take turns tattooing one design on a canvas.
#11 - Bug Out 7.73
Season 4 - Episode 2
Week 2: Dimension. Poisonous scorpions, tarantulas and eyeballs are tattooed; one artist snaps and is determined to leave.
#12 - Up in Smoke 7.73
Season 5 - Episode 11
Josh causes a controversy that could get him kicked out of the competition for good. The Artists tattoo amputees where their limbs once were.
#13 - Fight to the Finish 7.73
Season 4 - Episode 12
The Top 4 artists battle for finale spots in two challenges: inking breast-cancer survivors' scars; and covering up some of this season's worst mistakes. Then, a final twist is announced.
#14 - Baby Don't Go 7.73
Season 3 - Episode 8
#15 - Fighting Dirty 7.70
Season 4 - Episode 9
Week 9: Detail. Contestants must engrave a custom grill for the flash challenge. Then they must tattoo a warrior in the elimination tattoo.
#16 - Ink Master Live 7.69
Season 2 - Episode 13
Final Challenge: Complete a 24-hour tattoo in four six-hour sittings.
#17 - Virgin Blood 7.69
Season 5 - Episode 9
Jason's anxiety could take him out after virgin canvases get their first tattoos.
#18 - Pin up Pittfalls 7.68
Season 5 - Episode 2
Semi-nude models and a game changing twist; Josh is back with a vengeance and rivalries flare.
#19 - Karma's a Bitch 7.68
Season 4 - Episode 11
Week 11: Proportion. Contestants must accurately sketch the Statue of Liberty from a yacht, and then tattoo it using only their sketch. In the elimination challenge, they must tattoo a traditional Japanese-style snake, but with a difficult twist.
#20 - Cold Blooded 7.68
Season 5 - Episode 10
Artists use blood for ink in the Flash Challenge, then go head to head against guest judge Tommy Montoya; Emily goes over the edge.
#21 - Three's a Crowd 7.67
Season 5 - Episode 7
Artists must work in teams to take on Oliver's specialty and put one of their own on the chopping block.
#22 - Finale 7.67
Season 1 - Episode 8
Season 1 finale. A winner is named after the human canvasses allow the artists to tattoo whatever they want on their skin.
#23 - Head to Headache 7.65
Season 5 - Episode 3
Josh ignites rivalries and sparks fly. Two Artists receive an advantage no one in the competition has ever had and their cutthroat strategy.
#24 - Elysium Challenge 7.63
Season 3 - Episode 4
The artists are tasked with assembling tattoo machines from scratch and then using them on the human canvases. Meanwhile, the house turns on Joshua.
#25 - Star Wars Forever 7.62
Season 2 - Episode 7
The remaining artists create "Star Wars" tattoos for super fans of the franchise; and the winner of the Flash Challenge receives a special surprise from George Lucas.