OXFORD claimed their fourth win in five years in a supreme show of strength in the 161st men's boat race.

President Constantine Louloudis claimed a fourth and final boat race victory for the Dark Blues, completing a clean sweep only interrupted by claiming bronze with Team GB's men's eight at London 2012.

After Oxford's women breezed past Cambridge on their historic first battle on The Tideway course, their male counterparts made it a Dark Blue double with victory by six-and-a-half lengths.

Oxford's men secured the same victory margin as their female counterparts on a clear day of dominance.

Outgoing Oxford president Louloudis hailed the victory, admitting he felt far more pressure than ever before, despite boasting three previous wins.

"I felt much more pressure this year, especially as I was leaving the guys," Louloudis told BBC Sport.

"There were some pretty dark moments going in but I'm so pleased for the guys.

"We just stuck to our plan and executed a really good race."

Kiwi brothers Sam and James O'Connor shared a fine family moment, pairing up for the comfortable victory.

Sam O'Connor admitted claiming his second boat race victory was as pleasing as the first.

"It's great, you never get sick of this, it's such a good feeling," he told BBC Sport.

"And to do it with James, it's such a special moment."

James O'Connor spent the early part of the week fending off illness, and he conceded he was not entirely sure how he recovered in time for his boat race debut.

"It just feels good, it's the culmination of such hard work," he told BBC Sport.

"Monday was a dark day, I wasn't really thinking any further forward than the day I was on.

"I basically slept for three days, but fortunately I made it back and it's great."