Career Highlights
- 2019 All-American: 1,650 free (ninth)
- Two-time Pac-12 Winter Academic Honor Roll (2020, 2021)
- Pac-12 All-Academic second team (2019)
Personal Bests
- 200 Free- 1:36.82
- 500 Free- 4:15.58
- 1,650 Free- 14:40.53
- 200 Back- 1:41.34
- 200 IM- 1:53.21
- 400 IM- 3:45.29
As a Senior (2020-21)
- Pac-12 Academic Honor Roll
- Competed at the NCAA Championships in the 500 free (44th), the 1650 free (33rd), and 200 back (23rd)
- Scored at the Pac-12 Championships in the 500 free (ninth), the 1650 free (seventh), and the 200 back (eighth)
As a Junior (2019-20)
- Pac-12 Winter Academic Honor Roll
- Scored in two events at the Pac-12 Championships: the 200 back (seventh, 1:42.28) and 500 free (13th, 4:18.98)
- Swam B standards in three events: the 500 free, 200 back and 400 IM
As a Sophomore (2018-19)
- All-American in the 1,650 free (ninth)
- Pac-12 All-Academic second team
- Swam in three events at the NCAA Championships: 1,650 free (ninth, 14:40.53), 500 free (21st, 4:15.58), and 200 back (30th, 1:42.12)
- Scored in three events at the Pac-12 Championships: 500 free (eighth, 4:17.83), 200 back (ninth, 1:41.28) and 400 IM (10th, 3:45.29)
- Swam B standards in four events: 500 free, 1,650 free, 200 back and 400 IM
As a Freshman (2017-18)
- Scored at the Pac-12 Championships in the 500 free (sixth, 4:16.85) and the 400 IM (12th, 3:49.54)
- Qualified for the NCAA Championships in the 500 free (36th, 4:18.14) and 1,650 free (22nd, 14:51.59)
- Swam B standards in four events: 500 free, 1,650 free, 200 back and 400 IM
Prior to Stanford
- Prepped at Saint Peter’s Prep in Jersey City, NJ
- Participated in New Jersey High School State Championships
- Team qualified for Catholic Nationals
- Rookie of the Year (2013-2014)
- Swam for Scarlet Aquatics Club (2012-2017)
- Led team to first place at Speedo Sectionals (2014)
- Finished first at Speedo Junior Nationals in the 1500 meter freestyle (2016)
- Competed for Team Italy
- Participated in the Comen Cup and European Junior Championships (2016)
- Member of the USA Swimming Zone Select Camp (2015)
Personal
- Son of Giuseppe and Nicole Calloni
- Has an older brother, Thomas, and an older sister, Cristina
- Born in Milan, Italy
- Full name is Johannes Michael Calloni