Result: Oxford 38-16 Cambridge
Oxford took control in second half
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Earlier, Cambridge Women won 8-5
Oxford 17-9 Cambridge
We have a stoppage with a player from either side down.
It looks as though Joey Gatus' game is over - the teenage full-back for Cambridge has fashioned a sling from his shirt - looks like he's hurt his right shoulder.
Oxford 17-9 Cambridge
Brian Moore
Former England hooker on BBC Two
Oxford are eight points up, they are in Cambridge's territory. They don't need to take any chances, they don't need to leave their foot or hand in there. Let them have the ball, because they [Cambridge] don't look like scoring.
Oxford 17-9 Cambridge
Cambridge skipper and former Bath and Stormers number eight Nick Koster is forced off with blood pouring from his head.
Can Oxford take advantage of a leaderless Light Blues?
Oxford 17-9 Cambridge
You feel the next score will be absolutely key here.
If Cambridge can get within a converted try it will really ramp up this match - if Oxford can get across the Light Blue line again you have to think it'd be all over.
Oxford 17-9 Cambridge
Another turnover for Oxford.
If Cambridge head coach James Shanahan had any hair left he'd be tearing it out now.
Every time his side have a good bit of territory they give it away, sometimes through poor play, other time thanks to a great Dark Blue defence.
Meanwhile Oxford's George Robson comes off - the 33-year-old who won the 2012 Premiership with Harlequins has put in a decent shift - he can go back to his books and his MBA now!
Oxford 17-9 Cambridge
Brian Moore
Former England hooker on BBC Two
It is too far for Cambridge, surely. Based on the lack of chances they created in the first half.
Oxford 17-9 Cambridge
Silly mistake by the Oxford scrum half. Nigel Owens says the ball is out, Cambridge swarm on him and the Oxford player is offside.
Cambridge kick for touch and set up an attack of their own.
Oxford 17-9 Cambridge
What can Cambridge do now?
Going for their third successive win you feel they have to strike back soon and they have possession in a good area in the Oxford half, but the Dark Blues win a turnover on the 22.
Charlie Pozniak
The big second row Charlie Pozniak is driven over by the ferocious Oxford pack.
It gives them a bit of daylight in this varsity match after Oxford finally got hold of a line-out.
The conversion from Tom Humberstone is really well kicked to add two more points.
Oxford 10-9 Cambridge
Cambridge give away a silly offside as they knock on an Oxford kick forward and then pick it up.
The Dark Blues kick for the corner and have great field position.
Oxford 10-9 Cambridge
Ben Ransom has saved Oxford the with a great wriggle to get past two tacklers after a deep kick by Cambridge.
The Light Blues get possession back, but fly-half Mike Phillips kicks out on the full and Oxford get line-put ball on the half way line which they just about win.
Oxford 10-9 Cambridge
So here we go again. Cambridge get the second period under way.
It's time for someone to become a hero on campus and break this tight game apart.
Image source, Getty ImagesHT: Oxford 10-9 Cambridge
Damian Hopley
Former Cambridge University Blue and England international
The crowd is pretty steady now, around 20,000. I think it's difficult because there's such tradition of playing the game here at Twickenham, and once you move it you will never get it back.
To get to come to Twickenham and play in this fixture is very special so I think it has its place. But I also understand the commercial pressures being put on clubs now.
HT: Oxford 10-9 Cambridge
Damian Hopley
Former Cambridge University Blue and England international
Nick Koster, what a talisman. You can see when he starts to go forward, h's absolutely critical to how Cambridge are playing. When he's got his hands on the ball he is such a powerful force.
HT: Oxford 10-9 Cambridge
Cambridge captain and former Bath and Bristol star Nick Koster is playing his final match today.
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HT: Oxford 10-9 Cambridge
Brian Moore
Former England hooker on BBC Two
The clearest chance of the game for either side. Well worked, well finished.
Oxford 10-9 Cambridge
Image source, BBC SportThat try against the run of play ends the first half.
Cambridge have looked the better side, but Oxford have had the better chances.
It might not be pretty, but it is close and exciting!
Dan Barley
Winger Dan Barley goes over in the right corner after a lovely bit of work by the Cambridge backs.
A lovely step by Ben Ransom gave him the space to go over.
The conversion is good as well.
Oxford 3-9 Cambridge
Cambridge's scrum is again dominant and they win a penalty.
The Light Blues kick deep into Dark Blue territory, but Oxford are able to clear.
A perfect kick by George Tresidder sets up Oxford in a great territorial position.
Oxford 3-9 Cambridge
Brian Moore
Former England hooker on BBC Two
Cambridge have been the better side, not by a huge margin, but definitely so. I think Oxford will consider that, although at the moment they might go in six points down, that is not as bad as it could have been.