Henning led Colby to its third NESCAC title in the 2017 season. The Mules finished in a four-way tie for first place during the regular season. Colby beat Middlebury in the NESCAC semifinals and then Trinity in the championship game.

In her first 11 seasons, Henning has led the Mules to eight NCAA tournament appearances, including four national quarterfinal berths. She helped the Mules win the program's first New England Small College Athletic Conference (NESCAC) title in 2008, then led the team to another league title in 2009. The Mules also made the NESCAC title game in the 2010 and 2011 seasons. She earned the New England Pilgrim Region and NESCAC Coach of the Year honor in her first year. Colby is 144-54 in Henning's 11 seasons.

The Mules made the NCAA tournament for the second time in school history after a semifinal win over Middlebury and a title game victory against Trinity in the NESCAC tournament in 2008. She also earned New England Region coaching honors in her second year as the Mules once again made the national tournament. Despite falling in the NESCAC title game in 2010 and 2011, the Mules made it further in the NCAA tournament than any Colby team in the past by reaching the NCAA quarterfinals.

Henning reached 200 career wins during the 2014 season and has a 247-75 overall record as a head coach. She has a staggering 77 percent winning percentage in her coaching career. Henning was inducted into the Long Island Metropolitan Lacrosse Foundation (LIMLF) in February 2011 for her playing and coaching career.

Henning was hired as C.W. Post's first women's lacrosse coach in June 1999. She was named the Intercollegiate Women's Lacrosse Coaches Association (IWLCA) Division II National Coach of the Year after the championship seasons in 2001 and 2007. Henning's teams made seven NCAA tournament appearances and wn an ECAC title in 2005. Henning had four Division II Players of the Year and 10 IWLCA All-Americans at C.W. Post.

Henning was a student assistant coach for Maryland in 1997 and helped the coaching staff lead the Terrapins to another national title. Henning moved on to Dartmouth College for two years as an assistant coach in 1998 and 1999. She helped the Big Green to two Ivy League titles, two NCAA appearances, and a record of 24-8.