Cambridge claimed their third successive win - and fourth in the last five events - in the Men's Boat Race.
Moved away from its usual residence along the Thames to Ely in Cambridgeshire for the first time since the Second World War due to the Covid-19 pandemic, the Cambridge team took an early advantage and never looked like giving it up.
Sarah Winckless, the first female to umpire the men's race in the event's 166-year history, was kept busy as on several occasions she warned Cambridge cox Charlie Marcus to alter his crew's line.
It was a bold approach from Cambridge but they hit the front early on and stayed out in front of Oxford, who kept the disadvantage to less than a length without being able to reel in their rivals.
Earlier, Cambridge continued their recent stranglehold on the Women's Boat Race as they claimed their fourth successive win over Oxford, prevailing by less than a length in a unique year for the showdown between the two universities.
In a nip-and-tuck affair along the Great Ouse, Oxford were repeatedly warned by the umpire for encroaching on their rivals' line but Cambridge held their nerve, establishing a slender lead after halfway which they never surrendered as they triumphed.
Dylan Whitaker, the winning cox, was full of praise for his opposite number Costi Levy.
He said: "Massive, massive props to Costi because she steered like an absolute champ. That was close but we knew what our plan was, we kept it calm and loose and it worked."
Sarah Tisdall added: "Awesome race, massive congrats to Oxford. That's the closest boat race the females have had. Awesome day for women's sport and really proud of this team. It's been awesome."
