I guess there are two ways you could look at it. (1) putting a lid on it. (2) putting a fancy hat on it.
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AvangiThe "amazing run" would mean a relatively long (by industry standards) series of successes, culminating in a super success. (Culminating and capping, because it's the end of this particular "run.")I agree. My first read is: She is ending a long series of successes with a performance that is truly great.