Annabel Wilson nine back at Quinta do Lago

Annabel Wilson in action during last year's World Amateur Team Championships in Mexico. Picture: USGA

Lurgan's Annabel Wilson is nine strokes behind England's Annabell Fuller heading into Friday's final round of the Telegraph Vitality Junior Golf Championship at Quinta do Lago

The Irish international, undone by a triple bogey eight at the sevemth, added a 79 to her opening 75 on the slick Algarve greens to sit alone in fourth place on 10-over par.

Junior Vagliano player Fuller, 15, opened up a four-shot lead in the girls' event when she followed her 71 with a two-over par 74 to head Lily May Humphreys on one-over-par with Charlotte Heath, the overnight leader, third on seven-over after an 81.

Max Hopkins, 14, will aim to become the youngest ever boys' winner after rounds of 71 and 72 gave him a share of the lead with Alfie Fox on one-under par.

Telegraph Vitality Junior Championships, Quinta do Lago (par 72)

After 36 holes

GIRLS

1. Annabell Fuller (71, 74) +1
2. Lily May Humphreys (74, 75) +5
3. Charlotte Heath (70. 81) +7
4. Annabel Wilson (75, 79) +10
5. Hannah Screen (74, 82) +12
6. Martha Lewis (79, 80) +15
7. Louise Duncan (77, 82) +15
8. Ana Dawson (78, 82) +16
9. Jessica Hall (79, 83) +18

BOYS

1. Max Hopkins (71, 72) -1
2. Alfie Fox (70, 73) -1
3. James Wilson (70, 74) Level
4. Ben Jones (69, 77) +2
5. William Hopkins (70, 77) +3
6. Thomas Plumb (76, 83) +5
7. Enrique Dimayuga (76, 74) +6
8. Charles Petrie (77, 75) +8
9. Harry Goddard (78, 75) +9
10. Adam Tridgell (77, 76) +9
11. Goncarlo Teodoro (83, 78) +17
12. Greg Hurley (81, 83) +20