As a senior
A team captain, Ivory returned to the Big Red lineup after missing all of 2012 with a knee injury. She played like she never missed a beat, leading Cornell with 48 ground balls and 33 caused turnovers, both single-season career highs. Her caused turnover rate of 2.06 per game is tied for fifth-best in a single season at Cornell, and she was in the top 10 nationally in that category all season while replacing a Second-Team All-American in Cacki Helmer ’12. Ivory finished the year tied for first in team history in a single seaon with those 33 caused turnovers, and she ended her Cornell career with 111 ground balls and 64 caused turnovers -- the sixth-best mark in team history. Ivory was named the Ivy League's Defender of the Year as well as an All-Ivy First Team member at the conclusion of the regular season. She was also selected to the IWLCA All-Northeast Region First Team.
As a junior
Ivory did not play in her junior season.
As a sophomore
Ivory made her first All-Ivy appearance with a slot on the first team and earned a spot on the IWLCA All-Northeast Region second team after a standout sophomore campaign. She led all conference players in both ground balls (37) and caused turnovers (23), while also ranking among the team leaders with 17 draw controls. She had monster games against Loyola (five ground balls, four caused turnovers, three draw controls) and Penn (five ground balls, three caused turnovers, two draw controls). Her 1.64 caused turnovers per game (second in Ivy) ranked 10th in a single season in Cornell history.
As a freshman
Ivory had an outstanding freshman season on the defense, starting 11 of the team's final 12 contests and playing in all 15 games. Ivory tied for the team lead with 26 ground balls and added nine draws and eight caused turnovers. She earned Ivy League Defensive Player of the Week after her outstanding effort helped the Big Red snap a 22-game losing skid to No. 17 Princeton in an 11-8 victory. She caused three turnovers and won seven ground balls while defending Princeton's Barbara Previ, holding the high-scoring sophomore to a pair of assists in the win. Ivory notched four ground balls and won two draws against Dartmouth at the Ivy League Tournament. She won at least two ground balls in six of the team's final seven contests.
At Episcopal Academy
A two-time first-team all-league selection at Episcopal Academy, Ivory helped lead her team to four straight league championships and was a U.S. Lacrosse Scholastic All-American as a senior. She was given the John A. Harter Award and the Team of 1983 awards after her senior year. Ivory also lettered four times each in field hockey and basketball. She was team captain of the basketball and field hockey teams her senior year, while she was a two-time first-team all-conference pick in her final two seasons. Her field hockey team won an Inter-AC title in her final campaign and finished ranked fourth in the state.
Personal
Katharine Louise Ivory is the son of Tom and Mary Ivory and has an older brother and an older sister. Her brother, Tim, is the team captain of the men's basketball team at Hobart, while her cousin, Ryan Ivory, plays lacrosse at Albany. Ivory is enrolled in the College of Agriculture and Life Sciences.