| Caistor Grammar School, Caistor (mixed) | 7th and 21st September 2019 |
| Boston Grammar School, Boston (boys) | Lincolnshire Consortium: 13th & 20th September 2019 |
| Boston High School, Boston (girls) | Lincolnshire Consortium (as above) |
| Bourne Grammar School, Bourne (mixed) | Lincolnshire Consortium (as above) |
| Carre's Grammar School, Sleaford (boys) | Lincolnshire Consortium (as above) |
| Kesteven and Grantham Girls' School, Grantham (girls) | Lincolnshire Consortium (as above) |
| Kesteven and Sleaford High School, Sleaford (girls) | Lincolnshire Consortium (as above) |
| King Edward VI Grammar School, Louth (mixed) | Lincolnshire Consortium (as above) |
| The King's School, Grantham (boys) | Lincolnshire Consortium (as above) |
| Queen Elizabeth's Grammar School, Alford (mixed) | Lincolnshire Consortium (as above) |
| Queen Elizabeth's Grammar School, Horncastle (mixed) | Lincolnshire Consortium (as above) |
| Queen Elizabeth's High School, Gainsborough (mixed) | Lincolnshire Consortium (as above) |
| Skegness Grammar School, Skegness (mixed) | Lincolnshire Consortium (as above) |
| Spalding Grammar School, Spalding (boys) | Lincolnshire Consortium (as above) |
| Spalding High School, Spalding (girls) | Lincolnshire Consortium (as above) |