State championships
Tatnall: 72 state titles
State titles and finals for Tatnall, from DIAA. This is not a season record.
This covers state championship results only. It does not have season records, regular season games or playoff rounds before the final.
Source: Delaware Interscholastic Athletic Association (DIAA), State Champions History. Football scores and runners-up come from DIAA's football files; other sports list the champion only. DIAA State Champions History
Dover High game schedules and results are on Senators Sports.
State titles
| Year | Sport | Champion | Score | Runner-up | Notes | Source file |
|---|---|---|---|---|---|---|
| 2025 | Girls Track, Division II | Tatnall | ||||
| 2024 | Boys Cross Country, Division II | Tatnall | ||||
| 2024 | Girls Cross Country, Division II | Tatnall | ||||
| 2024 | Girls Indoor Track | Tatnall | ||||
| 2024 | Girls Track, Division II | Tatnall | ||||
| 2023 | Boys Cross Country, Division II | Tatnall | ||||
| 2023 | Football, Class 1A | Tatnall | ||||
| 2023 | Girls Cross Country, Division II | Tatnall | ||||
| 2023 | Girls Indoor Track | Tatnall | ||||
| 2023 | Girls Lacrosse | Tatnall | ||||
| 2023 | Girls Track, Division II | Tatnall | ||||
| 2022 | Boys Cross Country, Division II | Tatnall | ||||
| 2021 | Boys Cross Country, Division II | Tatnall | ||||
| 2020 | Boys Cross Country, Division II | Tatnall | ||||
| 2019 | Girls Track, Division II | Tatnall | ||||
| 2018 | Boys Cross Country, Division II | Tatnall | ||||
| 2018 | Girls Track, Division II | Tatnall | ||||
| 2017 | Boys Cross Country, Division II | Tatnall | ||||
| 2017 | Girls Cross Country, Division II | Tatnall | ||||
| 2017 | Girls Track, Division II | Tatnall | ||||
| 2016 | Boys Cross Country, Division II | Tatnall | ||||
| 2016 | Boys Track, Division II | Tatnall | Co-champions | |||
| 2016 | Girls Cross Country, Division II | Tatnall | ||||
| 2016 | Girls Track, Division II | Tatnall | ||||
| 2015 | Boys Cross Country, Division II | Tatnall | ||||
| 2015 | Girls Cross Country, Division II | Tatnall | ||||
| 2014 | Boys Cross Country, Division II | Tatnall | ||||
| 2014 | Boys Indoor Track | Tatnall | ||||
| 2014 | Boys Track, Division II | Tatnall | ||||
| 2014 | Girls Cross Country, Division II | Tatnall | ||||
| 2014 | Girls Track, Division II | Tatnall | ||||
| 2013 | Boys Cross Country, Division II | Tatnall | ||||
| 2013 | Girls Cross Country, Division II | Tatnall | ||||
| 2012 | Boys Cross Country, Division II | Tatnall | ||||
| 2012 | Boys Tennis | Tatnall | Co-champions | |||
| 2012 | Girls Cross Country, Division II | Tatnall | ||||
| 2012 | Girls Indoor Track | Tatnall | ||||
| 2011 | Boys Cross Country, Division II | Tatnall | ||||
| 2011 | Boys Indoor Track | Tatnall | ||||
| 2011 | Girls Cross Country, Division II | Tatnall | ||||
| 2011 | Girls Indoor Track | Tatnall | ||||
| 2011 | Girls Track, Division II | Tatnall | ||||
| 2010 | Boys Cross Country, Division II | Tatnall | ||||
| 2010 | Boys Indoor Track | Tatnall | ||||
| 2010 | Boys Track, Division II | Tatnall | ||||
| 2010 | Girls Cross Country, Division II | Tatnall | ||||
| 2010 | Girls Track, Division II | Tatnall | ||||
| 2009 | Boys Cross Country, Division II | Tatnall | ||||
| 2009 | Girls Cross Country, Division II | Tatnall | ||||
| 2009 | Girls Indoor Track | Tatnall | ||||
| 2009 | Girls Track, Division II | Tatnall | ||||
| 2008 | Girls Cross Country, Division II | Tatnall | ||||
| 2008 | Girls Track, Division II | Tatnall | ||||
| 2007 | Girls Cross Country, Division II | Tatnall | ||||
| 2007 | Girls Indoor Track | Tatnall | ||||
| 2007 | Girls Track, Division II | Tatnall | ||||
| 2006 | Boys Basketball | Tatnall | ||||
| 2006 | Boys Cross Country, Division II | Tatnall | ||||
| 2006 | Girls Cross Country, Division II | Tatnall | ||||
| 2005 | Boys Cross Country, Division II | Tatnall | ||||
| 2005 | Girls Cross Country, Division II | Tatnall | ||||
| 2004 | Boys Track, Division II | Tatnall | ||||
| 2004 | Girls Cross Country, Division II | Tatnall | ||||
| 2004 | Golf | Tatnall | ||||
| 2003 | Boys Cross Country, Division II | Tatnall | ||||
| 2003 | Boys Lacrosse | Tatnall | ||||
| 2003 | Boys Soccer, Division I | Tatnall | ||||
| 2002 | Golf | Tatnall | ||||
| 2000 | Boys Lacrosse | Tatnall | ||||
| 1994 | Boys Lacrosse | Tatnall | ||||
| 1993 | Boys Lacrosse | Tatnall | ||||
| 1984 | Field Hockey, Division I | Tatnall |