CAREER BESTS
| Event | Time | Date | Site/Opponent |
| 1-Meter | 292.50 | 10/3/15 | at Emory |
| 3-Meter | 309.75 | 10/16/15 | Virginia Tech |
2015-16 (Junior Year)
Penn State’s top women’s diver for the season … Reached the finals in both the 1- and 3-meter dives at the NCAA Zone A Championships, placing 12th in both with a 12-dive scores of 540.00 in the 3-meter and 478.85 in the 1-meter … Competed in a total of 10 meets … Set a personal best in the 1-meter of 292.50 at Emory (10/3) … Set a personal best of 309.75 in the 3-meter against Virginia Tech.
2014-15 (Sophomore Year)
Placed 12th in the 3-meter (280.05) and 21st in the 1-meter (241.15) at the NCAA Zone "A" Championships ... Advanced to finals in 3-meter with first-round score of 295.05 ... Led the team for the season and earned gold with career best dives of 292.27 in the 1-meter and 303.15 in the 3-meter at the Bison Invite (1/31) ... Competed in 10 total meets ... Was team's top diver at the Big Ten Championships in both the 1-meter (258.80) and 3-meter (285.50).
2013-14 (Freshman Year)
Competed in five meets, as well as the Big Ten Championships and NCAA Zone Diving ... Ranked first on the squad on the three-meter board ... Paced the team in the three-meter event at NCAA Zone A Diving Championships (3/11) with a score of 223.70 ... Put together a 10th-place score in the prelims of the NCAA Zone A Championships (3/10) with a six-dive one-meter score of 237.10 ... Took 16th overall in the one-meter with a combined score of 441.75 ... Took first place in the three-meter event at the St. Bonaventure/Towson tri-meet (2/1) with a score of 276.00 ... Had career-highs on the one-meter dive (264.38) and three-meter dive (299.85) at the Navy Dual (1/25).
High School
A diver at Northwest High School and head coach Lynn Meier ... Selected as team captain during her junior and senior seasons ... Was named team MVP all four years for the Jaguars ... Finished second at the 2013 Maryland Public Secondary Schools Athletic Association State Diving Championships and was an All-State selection ... Owns all three school diving records ... Competed for the Montgomery Diving Club ... Qualified for the Age Group Nationals (Platform) in 2011 ... Was a Zone Diving Qualifier on the one- and three-meter boards in 2012 and 2013.
Personal
Full name is Mackenzie Maier Cornell ... Born in Washington, D.C. on March 15, 1995 ... Parents are Cuyler and Courtney Cornell ... Has one sister, Catherine.