The Dolphins got -- and maybe needed -- all kinds of help to win consecutive games for the first time this season.
Coming off a 27-14 win at Chicago, Miami was overwhelmingly flat in its second straight road game and looked nothing like a potential playoff team facing a rebuilding squad filled with rookies and second-year players.
"I'm killing us," Bortles said. "I've got to try to eliminate different things and get better."
The Jaguars (1-7) dominated the first half, but trailed 10-3 at the break because of a slew of miscues. Bortles was the main culprit, continuing a trend that started when he took over the starting job last month.
Bortles had three turnovers Sunday, giving him six in the past two weeks and 13 in six games. Four of those have been interceptions returned for touchdowns.
Tannehill completed 16 of 29 passes for 196 yards, with a touchdown and an interception. Mike Wallace had two receptions for 59 yards.
But much like the previous losses, Jacksonville's offense did little good and too much bad.
Bortles was 18 of 34 for 221 yards, with a touchdown and two interceptions. He threw a 48-yard strike to Allen Robinson with 2:19 remaining.
"Obviously disappointed," Bortles said. "I'm not going to say I'm mad at myself 'cause that's not going really going to help anything. Nobody cares, and it's not going to help me do anything. You've just got to learn from it. You've got to go figure it out, start watching film and find out what you can do to try to be better."
Bortles was picked off on the next play. Delmas stepped in front of a pass intended for tight end Nic Jacobs and went untouched the other way for a 7-0 lead.
The backbreaker for Jacksonville was Grimes' interception return early in the third.
"If it doesn't make you mad, then something is wrong with you," Bortles said.
Notes: Jaguars RB Denard Robinson finished with 108 yards on the ground, the first Jacksonville player to top the century mark in consecutive games since Maurice Jones-Drew in 2011. ... Dolphins LG Daryn Colledge left the game with migraines. His replacement, Nate Garner, came in for one play before leaving with an ankle injury. ... Jaguars recorded three sacks and allowed four.
Copyright 2014 by The Associated Press