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."
More top news
The number of children in care has increased to its highest level for nearly 25 years, the Government's spending watchdog has said.
Abuse victims are being put through "torture" by the pace at which the Government's inquiry into abuse is progressing, an MP has said.
The number of diabetic and severely overweight patients having weight loss surgery needs to triple to help the future of the NHS, Nice said.