The phrase "achieved one goal" is correct and usable in written English.
You can use it when discussing the completion of a specific objective or target in various contexts, such as personal achievements, project milestones, or team objectives.
Example: "After months of hard work, we finally achieved one goal: to launch the new product on time."
Alternatives: "reached a goal" or "accomplished a goal."
On Tuesday he achieved one goal with a remarkable 18-second victory in the first of the Tour's two time trials, an 18.3-mile individual race against the clock.
Scott Verplank has already achieved one goal this year, but he has positioned himself to attain another.
Aronian loved the concept of sacrifice, and the idea that he could do anything so long as he achieved one goal: kill the king.
'My health was suffering, I was unable to switch off, even at the weekend, but every time I achieved one goal, it would be immediately replaced by two or three other impossible demands that needed to have been achieved yesterday.
Achieving your goals should become so addictive that you cannot and will not rest until you have achieved one goal, then the next, and then the next, finally accomplishing all of your goals, one by one.
And the flaws in some of the service's most important vessels, such as the National Security Cutter, will take years to correct.At least Deepwater achieved one goal: the coastguard is now receiving plenty of attention.
This fits in well with our modular, microlibrary strategy, borrowing from the Unix playbook by ensuring each of our dependencies are focussed on achieving one goal, and can be switched out for an alternative at a later stage without too much refactoring.
On the cusp of achieving one goal, the sense of urgency drives her forward again -- this time toward law school.
Why are national campaigns in China designed to achieve one goal rather than several goals?
You set and achieve one goal after another (i.e., finding one player after another).
It's easy for us to cooperate and achieve one goal.
