After a run of just one win in their previous 14 league games, Michael Eisner called an end to the head coach’s stay at Fratton Park.
The 44-year-old departs PO4 having won 43 of his 97 competitive games in charge following his appointment in March 2021.
That leaves Cowley with a win percentage of 44.3 per cent following his side’s 3-1 defeat to Charlton on New Year’s Day.
But how do those figures compare to his predecessors?
We’ve taken a look at every Pompey manager since 2000 and worked out how Cowley’s win percentage ranks.
Here’s what we found.

1. Tony Adams
Games managed: 22; Games won: 4; Win percentage: 18.18 per cent. Photo: Chris Ison

2. Alain Perrin
Games managed: 21; Games won: 4; Win percentage: 19.05 per cent. Photo: Robin Jones

3. Richie Barker
Games managed: 20; Games won: 4; Win percentage: 20 per cent. Photo: Allan Hutchings

4. Guy Whittingham
Games managed: 51; Games won: 11; Win percentage: 21.6 per cent. Photo: CameraSport - Michael Zemanek

