BOSTON  - Senior Will Geoghegan broke the 20-year old Dartmouth indoor record for the mile on Saturday afternoon at Boston University’s Terrier Invitational.

Geoghegan ran a 3:58.04 in the second seeded heat of the day, breaking the old record of 4:02.26 set by Sam Wilbur in 1994 by more than four seconds. The time is also the fastest mile in the nation this season, matching the feat set by his female counterpart and classmate Abbey D’Agostino (4:28.03) Friday night, giving Dartmouth the best male and female milers in the country.

The performance also set a new Ivy League mark, eclipsing the previous record of 3:58.52 set by Columbia’s Kyle Merber in 2010.

The Big Green’s top distance runner benefited from the race’s rabbit getting off to a great start. Geoghegan was seemingly the only runner to keep pace before the rabbit dropped off, allowing the senior to cruise to the record-setting win.

The only other Dartmouth student-athlete to break the four-minute mile in program history was Ben True, who has a 3:59.99 to his credit during the outdoor season.

Steve Mangan and John Bleday were sixth and seventh, respectively, in the event that featured 176 competitors. Mangan ran a 4:01.31, while Bleday was a 4:01.44, both of which broke the previous record, setting a new standard that lasted just five minutes as Geoghegan established the sub-four-minute mark in the next heat.

The 5000m saw Dylan O'Sullivan take fifth overall in a field of 84 as he posted a 14:21.12. Brian Masterson was just back of O’Sullivan, taking eighth in 14:32.09.

Freshman Phil Gomez was 19th in the 500m, running a 1:05.10 in a field of more than 60 competitors.

The men are back in action on Saturday, Feb. 1 as the team hosts the Dartmouth Classic at Leverone Field House. The meet is set to begin at noon.