| Recordbook | |||||
| Grayslake | |||||
| Year | Activity | Class | Wins | Losses | Place |
|---|---|---|---|---|---|
| 2023 | Boys Bowling | Single | |||
| Boys Track & Field | 8-4A | 39 | |||
| Boys Wrestling | AA | 7 | |||
| Girls Cross-Country | 4A | 23 | |||
| 2022 | Boys Wrestling | AA | 6 | ||
| Girls Track & Field | 8-4A | 23 | |||
| 2021 | Girls Cross-Country | 3A | 14 | ||
| 2019 | Boys Bowling | Single | |||
| Boys Track & Field | 7AA | 36 | |||
| Boys Track & Field | 8AA | 14 | |||
| Boys Wrestling | AA | 14 | |||
| Girls Bowling | Single | ||||
| 2018 | Boys Bowling | Single | |||
| Boys Track & Field | 8AA | 30 | |||
| Boys Wrestling | Single | 10 | |||
| Girls Bowling | Single | ||||
| 2017 | Boys Track & Field | 7AA | 41 | ||
| Boys Wrestling | Single | 3 | |||
| Girls Track & Field | 7AA | 55 | |||
| 2016 | Boys Track & Field | 7AA | 46 | ||
| Boys Wrestling | Single | 4 | |||
| Girls Track & Field | 8AA | 39 | |||
| 2015 | Boys Wrestling | Single | 33 | ||
| 2014 | Boys Track & Field | 7AA | 32 | ||
| Boys Wrestling | Single | 52 | |||
| 2013 | Girls Track & Field | 7AA | 47 | ||
| 2011 | Boys Wrestling | Single | 76 | ||
| 2008 | Boys Track & Field | 8AA | 49 | ||
| Boys Wrestling | Single | 36 | |||
| 2007 | Boys Track & Field | 7AA | 39 | ||
| Girls Track & Field | 8AA | 45 | |||
| 2006 | Boys Wrestling | Single | 53 | ||
| 2005 | Boys Track & Field | 8AA | 30 | ||
| Boys Wrestling | Single | 67 | |||
| 2004 | Boys Track & Field | 7AA | 5 | ||
| Boys Wrestling | Single | 80 | |||
| 2003 | Boys Wrestling | Single | 66 | ||
| 2002 | Boys Wrestling | Single | 29 | ||
| 2001 | Boys Wrestling | Single | 25 | ||
| 2000 | Boys Basketball | 7AA | 0 | 1 | |
| Boys Basketball | 8AA | 1 | 1 | ||
| Boys Wrestling | Single | 59 | |||
| Girls Basketball | 8AA | 0 | 1 | ||
| 1999 | Boys Track & Field | 7AA | 55 | ||
| Boys Wrestling | Single | 50 | |||
| Girls Basketball | 7AA | 1 | 1 | ||
| Girls Basketball | 8AA | 0 | 1 | ||
| 1998 | Boys Track & Field | 8AA | 12 | ||
| Boys Wrestling | Single | 30 | |||
| 1997 | Boys Cross-Country | AA | 10 | ||
| Boys Track & Field | 7AA | 14 | |||
| Boys Wrestling | Single | 31 | |||
| 1996 | Boys Track & Field | 8AA | 16 | ||
| Boys Wrestling | Single | 34 | |||
| 1995 | Boys Track & Field | 7AA | 10 | ||
| Boys Wrestling | Single | 12 | |||
| Girls Basketball | 8AA | 2 | 1 | 3 | |
| 1994 | Boys Track & Field | 7AA | 26 | ||
| Boys Wrestling | Single | 32 | |||
| Girls Track & Field | 8AA | 13 | |||
| 1993 | Girls Track & Field | 7AA | 12 | ||
| 1992 | Boys Wrestling | Single | 23 | ||
| 1991 | Boys Wrestling | Single | 45 | ||
| 1989 | Boys Wrestling | Single | 28 | ||
| 1932 | Boys Basketball | AH | 0 | 1 | |
| 1930 | Boys Basketball | AH | 1 | 1 | |