Matthew Pinsent, who umpired the race for the first time, said it had been a "busy but enjoyable experience".
The four-time Olympic rowing champion, who won the race with Oxford in 1990 and 1991, said: "It goes very quickly when you're in charge of umpiring it."
Asked if he had been concerned about security going into the race following last year's incident, he said: "Thankfully, not my responsibility. The ramifications would have been interesting - I would have had to sort out the race if there is an interruption but thankfully nothing happened."
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