Adil Yunis has claimed the Student Union presidency by 30 votes over current Vice President Mark DiCristofaro in one of the closest elections in Boston University history.

When Yunis assumes the office this summer, he will be joined by the three students who campaigned with DiCristofaro — John Grant as vice president, Elena Quattrone as secretary and Josh Levine as treasurer.

Following Election Commission Chairman Drew Phillips’s announcement at the Fitness and Recreation Center on Friday afternoon, a stoic DiCristofaro immediately approached and congratulated Yunis, who admitted the results were “a very pleasant surprise.”

Phillips announced the winning candidates beginning with treasurer and moving up through the Executive Board. After announcing the three winners from the Team Union slate, Yunis’s name came as a shock to many candidates and their supporters.

“I knew it was going to be a very close race,” said Yunis, president of the College of Arts and Sciences Forum Class of 2008. “I knew that this year, with all the candidates, it would be tough.”

Yunis said he does not anticipate tensions arising between he and the other three elected students from DiCristofaro’s slate.

“It is great to work with people who come from different backgrounds,” Yunis said.

Yunis received 1,256 votes, 30 more than DiCristofaro’s 1,226. Quattrone received the most votes of any candidate, with 1,887.

“I think there will be a number of people upset that I’m not president, but there’s that number plus 30 who won’t be upset,” DiCristofaro said.

DiCristofaro had said he canceled plans to study abroad next semester so he could serve as president. Now that he has lost, he said he will be working with orientation services and the Student Activities Office.

DiCristofaro said he does not plan to ask the Elections Commission to recount votes.

“All the candidates this year were so dedicated, so it doesn’t matter if [most of] a slate is elected,” said Phillips, who said he found out about the results shortly after 1 p.m. Friday.

Yunis said yesterday he has spoken with the other elected students and plans on meeting with them this week.

“It goes to show you that every vote really does count,” Yunis said. “If one of my campaign supporters had done one less of an effort, it could have been different.”

Phillips said he pored over nine pages of results — the product of the option for write-in candidates online for the first time — to verify the accuracy and legitimacy of the votes with SAO Director Mindy Stroh.

“Whenever you have an expectation, there’s always an adjustment period, but I don’t think there will be any problems,” Phillips said of Yunis working with the three elected students who campaigned with DiCristofaro, a College of Communication junior.

Presidential candidate Sunil Murti received 549 votes, and presidential candidate Paul Busco received 379 votes.

Of the 3,706 total votes cast in the election, more were cast in the first 24 hours than total votes in last year’s election, Phillips said. Last year, Brooke Feldman ran for president uncontested and received about 1,670 votes.

Though the most significant race was Yunis’s 30-vote margin over DiCristofaro, it was not the narrowest contest. In the race for treasurer, Hersh Parekh received 743 votes, one more than Johnny Pujol, who campaigned with Murti. However, both were defeated by Levine, who received 1,565 votes.

Former Student Union President Jon Marker received five write-in votes for president, two for vice president, one for treasurer and one for secretary.

Staff reporter Christina Crapanzano contributed reporting for this article.