| Last 16 | Quarter-Final | Semi-Final | Final | Winner |
|---|
 | Benenden School U19A (4) |
| | | | |
#1 Mon 12-Mar-18 10:30 (Astro)
Loser transfers to Plate |
| Benenden School U19A (2) |
| | | |
 | St James' Senior Girls School U19A (1) |
| | | | |
| | | | |
| #13 Mon 12-Mar-18 13:30 (Astro)
Loser placed 5th overall |
| Benenden School U19A (0) |
| | |
| | | | |
 | Downe House U19A (4) |
| | | | |
#2 Mon 12-Mar-18 10:45 (Astro)
Loser transfers to Plate |
| Downe House U19A (1) |
| | | |
 | Moreton Hall School U19A (0) |
| | | | |
| | | | |
| | #19 Mon 12-Mar-18 15:12 (Astro)
Loser placed 3rd overall |
 | St Catherine's U19A (1) |
| |
| | | | |
 | Caterham School U19A (4) |
| | | | |
#3 Mon 12-Mar-18 11:00 (Astro)
Loser transfers to Plate |
| Caterham School U19A (0) |
| | | |
 | St Helen and St Katharine U19A (1) |
| | | | |
| | | | |
| #14 Mon 12-Mar-18 13:45 (Astro)
Loser placed 5th overall |
| St Catherine's U19A (1) |
| | |
| | | | |
 | St Albans High School for Girls U19A (0) |
| | | | |
#4 Mon 12-Mar-18 11:15 (Astro)
Loser transfers to Plate |
| St Catherine's U19A (3) |
| | | |
| St Catherine's U19A (5) |
| | | | |
| | | | |
| | | #22 Mon 12-Mar-18 16:30 (Astro)
Loser placed 2nd overall |
 | Lady Eleanor Holles School U19A
(Winner overall) |
|
| | | | |
 | Berkhamsted School U19A (4) |
| | | | |
#5 Mon 12-Mar-18 11:30 (Astro)
Loser transfers to Plate |
| Berkhamsted School U19A (3) |
| | | |
 | Wycombe Abbey U19A (0) |
| | | | |
| | | | |
| #15 Mon 12-Mar-18 14:00 (Astro)
Loser placed 5th overall |
| Berkhamsted School U19A (1) |
| | |
| | | | |
 | Queen Anne's Caversham U19A (1) |
| | | | |
#6 Mon 12-Mar-18 11:45 (Astro)
Loser transfers to Plate |
| Queen Anne's Caversham U19A (2) |
| | | |
 | St Mary's Calne U19A (1) |
| | | | |
| | | | |
| | #20 Mon 12-Mar-18 15:33 (Astro)
Loser placed 3rd overall |
| Lady Eleanor Holles School U19A (2) |
| |
| | | | |
 | St Swithun's U19A (0) |
| | | | |
#7 Mon 12-Mar-18 12:00 (Astro)
Loser transfers to Plate |
 | Guildford High School U19A (3) |
| | | |
| Guildford High School U19A (5) |
| | | | |
| | | | |
| #16 Mon 12-Mar-18 14:15 (Astro)
Loser placed 5th overall |
| Lady Eleanor Holles School U19A (4) |
| | |
| | | | |
 | St Paul's Girls School U19A (0) |
| | | | |
#8 Mon 12-Mar-18 12:15 (Astro)
Loser transfers to Plate |
| Lady Eleanor Holles School U19A (4) |
| | | |
| Lady Eleanor Holles School U19A (8) |
| | | | |
