Milly Wilkinson and Georgia Smith helped themselves to doubles as Tower Hill Vixens beat Rotherfield United in the Oxford Mail Girls League Under 11 League Cup semi-final.
Emma Bartlett and Fraya Muttock were their other scorers.
Tower Hill, who can secure the league title if they draw in their final game away to Kidlington, will meet Oxford City in the final.
Carterton Town went down to a 2-0 defeat at Oxford City in the Under 11 Cup semi-final.
Molly Jones and Jasmin Nassar were on target for the hosts.
Tower Hill Vixens suffered disappointment as they went down to a 5-4 penalty shoot-out defeat at home to Banbury United in the Under 13 League Cup semi-final.
The hosts started well, but were unable to turn their dominance into goals.
And they paid the price when the visitors went ahead through a Becky Tuckey strike.
But Tower Hill recovered well and deservedly levelled early in the second half through Isabelle Henthorn.
With no further scores in extra time the game went down to a dramatic penalty shoot-out.
Banbury held their nerve to win the tie with a sudden-death penalty.