Brock Purdy nearly perfect as 49ers thrash Dolphins in historically dominant start

SANTA CLARA — Now, the San Francisco 49ers can say all is back to normal.Almost 16,000 of the 38,105 miles they’ll travel this season are behind them, and they’re 2-0.A convincing 2-0, at that.They had more than a week to recover from a taxing, transcontinental start to the season, and they left no doubt about any lingering effects in their first game back at Levi’s Stadium.That is to say, there were none at all.“We knew that it would be a challenge,” coach Kyle Shanahan said, “but getting the days off, by the time everyone came to work, we were over the travel and stuff by then.”The Niners could have sleepwalked to a win over a futile Miami Dolphins team that possessed precisely one weapon, but instead Shanahan’s squad shifted into high gear and set the tone for the remainder of the season.Final score: 49ers 35, Dolphins 13.Brock Purdy was nearly perfect, Christian McCaffrey scored his 99th and 100th career touchdowns, and San Francisco dominated in all three phases on its way to a convincing romp in its first game this season in front of its home fans — or on American soil.For the first time in franchise history, the 49ers began the season with back-to-back wins by margins of 20 points or more, after decleating the Rams in a 27-7 win last Thursday.If anybody in red and gold could be accused of not showing up, it wasn’t the guys who traveled to Australia and back within the last two weeks.

There was practically no homefield advantage for them to feed off of, with empty seats scattered throughout all three levels of Levi’s Stadium.They didn’t need any energy boost.Even battling potential jetlag and a sleepy home stadium, the 49ers were practically unstoppable.

Here are the takeaways:Whether it’s due to Shanahan’s halftime adjustments or possessing the better-conditioned football team, the 49ers are 2-0 thanks to two dominant second halves that turned one-possession games at intermission into blowouts by the final whistle.Purdy found a...