Durham rounded off their season with a fine away performance despite a defeat at Yeovil.
It was the visitors who enjoyed the best of the early chances with both Rachel Lee and Jordan Atkinson drawing saves out of Charlotte Haynes.
But Yeovil grew into the match with Sarah Wiltshire in particular proving lively, including firing over the bar in the second half.
And, with time almost up, Wiltshire was again involved as she was fouled in the box and Yorston stepped up to convert.
“I’m gutted we lost but I think the players gave us 110 per cent, I couldn’t have asked for any more on the last game of the season and it’s just a shame that we didn’t get the three points,” said Durham assistant manager Andy Thorpe.
“Any other day that shot from Rachel Lee early on would go in the back of the net, but give their keeper credit, it was a top save.
“Any other team and that would have gone it the back of the net.
“We’ve done better than we did last season, our target this season was to get more points and we’ve achieved that.
“We’ve got a stronger squad and we’ll look to build on that and we’re looking ahead to next season now.
“We’ll be aiming for a top four finish and there’s no reason why we can’t aim for that.”
Durham XI: Helen Alderson, Ellie Christon, Julie Nelson, Sarah Wilson, Chloe Macek, Beth Hepple, Rachel Lee, Jordan Atkinson, Natalie Gutteridge, Courtney Corrie, Nicki Gears.