NBC Sports California showed the final out:
Manaea only allowed three baserunners on two walks and one error by shortstop Marcus Semien and recorded 10 strikeouts to complete his masterpiece.
In containing Boston's red-hot lineup, Manaea was able to succeed by limiting the amount of hard contact against him:
The Red Sox came into Saturday's game with an MLB-best 17-2 record and had scored at least seven runs in each of the past four games. Their offense was leading the league with 123 runs scored, a .293 batting average, .361 on-base percentage and .497 slugging percentage.
Manaea's no-no nearly coincides with the 25th anniversary of the last time Boston failed to record a hit in a game:
Stats By STATS @StatsBySTATS
Sean Manaea threw the 12th no-hitter in @Athletics history, becoming the first pitcher to no-hit the @RedSox since Chris Bosio did 25 years ago tomorrow. Boston's 3987-game drought without being no-hit was the 2nd-longest active streak. Only one longer: #RootedInOakland (4241).
Now in his third MLB season, the 26-year-old Manaea has taken a significant leap forward to start 2018. The left-hander's 1.23 ERA ranks fourth in the American League, and this was his fourth start of at least seven innings with one or fewer runs allowed.