die Bestleistung
Translation
personal best, record performance, top performance
Examples
Der Athlet erzielte eine neue Bestleistung.
The athlete achieved a new personal best.
Ihre Bestleistungen sind beeindruckend.
Her top performances are impressive.
Grammar Patterns
to achieve/set a personal best The swimmer set a new personal best.
Similar Words
Rekord (record), Spitzenleistung (peak performance)
Etymology
A compound noun from 'best-' (superlative of 'gut', good) and 'Leistung' (performance, achievement). Literally 'best performance'.
Memory Tips
It's simply the 'best' 'Leistung' (performance) one can achieve. Directly translates to 'best performance' or 'personal best'.