tempo run
US /ˈtem.poʊ rʌn/
UK /ˈtem.poʊ rʌn/

1.
carrera de ritmo, entrenamiento de ritmo
a training run that is performed at a comfortably hard pace, typically for a sustained period, to improve a runner's lactate threshold and endurance
:
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I'm doing a tempo run today to prepare for the marathon.
Hoy haré una carrera de ritmo para prepararme para el maratón.
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Regular tempo runs can significantly improve your running performance.
Las carreras de ritmo regulares pueden mejorar significativamente tu rendimiento al correr.