Pompey Women were beaten 2-0 by Oxford in their final home match of the season at the PMC Stadium.
The result means that they finish eighth in the National League South table, regardless of the outcome of next Sunday’s trip to QPR.
It was United who applied the early pressure and they were rewarded with an opening goal midway through the first half.
A ball was sent into the box from wide on the right by Sophie Barker and Georgia Timms got enough on her header to beat Hannah Haughton.
But the Blues keeper did better soon after to stop her side falling further behind, racing off her line to deny the onrushing Timms.
But Oxford did double their advantage just before the interval, as Emily Allen sent the ball into the mixer and Rebekah Tonks inadvertently turned it into her own net.
Half Time: Pompey 0 Oxford 2
It was no surprise to see Pompey come out a lot stronger after the interval, as they searched for a route back into the game.
Shannon Albuery, Katie James and Jade Widdows all looked bright, but were unable to test Lucy Thomas between the sticks.
Becki Bath also had a few attempts on goal, although the forward saw her shots fly wide of the post.
Widdows came closest to finding the net for the hosts with a fierce effort that Thomas did brilliantly to keep out.
Blues boss Jay Sadler said: “There are no excuses – collectively we just weren’t good enough and minor details cost us.
“There’s a lot to reflect on, although I know this group will get stronger and we’re focused on ending the season with a positive result.”
Pompey: Haughton; Kirby, Southgate (c), Currie, Tonks; Rowe, Bradley, James; Widdows, Albuery, Bath (May 76)
Subs not used: Burns, Younger, Perkins, C.Collighan
🎥 We gathered the thoughts of #Pompey Women manager @Sadler004 after yesterday's 2-0 defeat to Oxford United. 🗣— Portsmouth Women (@officialpompeyw) April 29, 2019
Watch the FULL interview over on the 'officialpfcw' YouTube channel 👉 https://t.co/AShpOlhZ95 pic.twitter.com/WkRk8Aocsq