In their penultimate match of the Ivy Court Cottages Welsh League Youth Division East, the Bulldogs let a half-time lead slip against Taffs Well.
Ton Pentre did well in the first half and were deserving of their lead when they worked the ball into the back of the Taffs Well net in the 17th minute.
The Bulldogs took the lead into the half-time interval but Taffs Well demonstrated their determination in the second half.
The Wellmen equalised in the 56th minute and took the lead 10 minutes later.
With four minutes left on the clock Taffs Well broke through to make it 3-1 and secure the three points on offer.
The young Bulldogs are home again on Thursday, 21 April for their final match of the season. Ton Pentre welcome Caldicot Town to Ynys Park for a 7.30pm kick off.