close-run /ˌkləʊs ˈrʌn◂ $ ˌkloʊs-/
adjective [only before noun] British English in a close-run competition, the winner succeeds by a very small distance or number of points, votes etc:
The Labour Party won the seat, but it was a close-run thing. [TahlilGaran] Dictionary of Contemporary English ▲