Conor Chaplin registered a priceless last-gasp goal as Pompey performed a smash and grab at Middlesbrough.
The Blues manfully defended their penalty area for much of the game, particularly in the second half, to keep the promotion-hunting Boro at bay.
Then, in seven minutes of stoppage time, Marlon Pack’s corner was picked up by Adrian Segecic and his shot deflected off Chaplin into the net for a 1-0 victory.
John Mousinho’s men had set to drop into the relegation zone, instead a late, late win keeps them in 21st spot.
Here are Pompey’s player ratings…
1. Portsmouth forward Colby Bishop (9) shoots during the EFL Sky Bet Championship match between Middlesbrough and Portsmouth at the Riverside Stadium, Middlesbrough, UK on 11 April 2026.
Colby Bishop pressurises the Middlesbrough defence in Pompey's last-gasp 1-0 win. Picture: Simon Davies/ProSportsImages | Simon Davies/ProSportsImages
2. Nicolas Schmid - 8
Had his doubters of late and rightly so, but produced some excellent saves to keep Pompey in the game. First half from Browne and then superb finger-tip stop from McGree. | Graham Hunt/ProSportsImages
3. Terry Devlin - 8
Continues to impress, this time with an excellent defensive performance. Boro substituting their left winger Sarmiento at half-time was certainly a compliment. With player of the year season coming, he will be in many fans’ thoughts. | Graham Hunt/ProSportsImages
4. Regan Poole - 8
Colossus at the back and an absolute rock, especially in the second half against consistent Middlesbrough pressure. Loves a fight and boy this was one. | Simon Roe/ProSportsImages