SAN FRANCISCO - The Miami Dolphins fell 35-13 to the San Francisco 49ers in Week 2, as quarterback Brock Purdy completed 20 of his 22 pass attempts and San Francisco scored touchdowns on each of its first five possessions to pull away from a young Miami squad.

Despite the lopsided final score, the game remained a one-score contest at halftime, with Miami controlling the ball for more than 20 minutes in the opening half and running 28 plays from 49ers territory. Running back De’Von Achane carried the ball 16 times for 62 yards and caught three passes for 19 yards as the Dolphins converted 6-for-9 on third and fourth downs in the first half, including a 23-yard completion from quarterback Malik Willis to wide receiver Malik Washington on third-and-9 with less than three minutes remaining before the break.

The second half unraveled quickly. Head Coach Jeff Hafley pointed to two early mistakes that handed San Francisco momentum it never surrendered. “In the second half, I don’t think it was a lack of effort or how hard we played,” Hafley said. “We did something extremely uncharacteristic on the first play of the half that went for an explosive, and we had another huge mistake on the second that went for a touchdown so quickly.”

Hafley credited San Francisco’s offensive system and its architect for the difficulty Miami faced. “(Kyle Shanahan) is a great play caller and they’ve got great players who are experienced and have been running this system for a very long time,” Hafley said. “Consistency and continuity in one scheme over time usually equals success.”

Miami’s offense ran 38 snaps in the first half, limiting the 49ers to just two possessions, a sign that the Dolphins’ run-heavy approach can keep elite opponents off the field. Hafley said the film from the loss carries lessons a young roster can use. “When guys do their job on every single play, and you heard a lot of the players talk about their 1/11th, when guys do that every single play and they play as hard as they did in the first half, we can play with really good teams, really good, experienced teams,” he said.

After reviewing the game tape, Hafley said the effort was evident even in defeat. “When you turn on the tape there’s an element of toughness and how hard we’re playing that jumps off the tape,” he said. “We have to establish that and we have to build off of that, and when you turn on the last couple of plays of the game on both sides of the ball, they’re playing just as hard as they did on the first.”

Miami returns home for Week 3 as the team looks to apply the lessons from back-to-back losses to open the 2026 season.