John Mousinho — Data, evidence & sources
John Mousinho
Portsmouth· EFL Championship · 
England · Age 40
72/ 100
Solid
44th percentile of covered managers
Career snapshot
Age
40
30 APR 1986
Appointed
20 JAN 2023
Tenure
3Y 8M
3 years, 8 months
Contractⓘ
Until 30 June 2028
Extended after Championship survival
Senior managerial experienceⓘ
3 years, 8 months
Since 5 JAN 2023
In coaching
3 years, 8 months
Includes academy & assistant roles
Season: 2026/27Competition: EFL ChampionshipUpdated: Updated todaySource: GafferLens editorial review — appointment, contract and career dates manually verified to the 21 August 2026 baseline
Current Club — All Competitions
175
70
49
56
40%
GF 240 · GA 225 · GD 15 · 2023-01-21 → 2026-08-22
Current Season — League
2 matches · 1–0–1 · 50%
Current Club — League
163 matches · 67–47–49 · 41.1%
All verified competitive senior first-team matches managed during the current uninterrupted spell. Verified fixtures → match records → manager assignments → approved canonical layer.
Data profile
Verified career record
Aggregated from individual senior spells
Spells awaiting a verified match record: Oxford United (2021–2022), Portsmouth (Verified appointment 2023-01-20; previous GafferLens value 2023-01-05 corrected.).
Senior head-coach spells only. Assistant and development-team roles are excluded from win-loss totals, and each spell counts only matches managed at that club.
Methodology & data freshness
GafferScore 0.4 (provisional editorial) · tactical model 0.3 (prototype model) · rankings updated 2026-08-17. Form window: Last 10 competitive matches, recency weighted.
Updated today · Confidence HIGH · Source: GafferLens editorial review — appointment, contract and career dates manually verified to the 21 August 2026 baseline
Image credits
Visual: GafferLens generic Portsmouth shirt — an original unbranded illustration using traditional club colours. No licensed photograph verified for John Mousinho (status: PLACEHOLDER).