Added by mvjr4:

The following BBC Local Radio stations took the 5 Live commentary: Berkshire, Cornwall, Cumbria (closing stages with John Hunt only), Devon, Hereford & Worcester, Kent, Lancashire, Newcastle, Norfolk, Solent, Surrey, and Wiltshire.

There were no distinct opt-in and -out points, hence each station joined and left the commentary at various points.

Added by Crowe24:

On All Frequencies

Added by mvjr4:

Coverage from Aintree with Hughes, Watts, and Woodward from 14:00 BST.

Commentary as BBC Radio 5 Live.

Added by mvjr4:

Took Radio 5 Live commentary.
McNamee was joined by Harvey at Aintree for analysis.

Added by mvjr4:

"Sportsworld" presented from Aintree.

Added by mvjr4:

Commentary on the Randox Grand National Handicap Chase as BBC Radio 5 Live.

Added by RHJR:

Simulcast of ITV coverage

Added by RHJR:

Richard Hoiles commentated on all races with Mark Johnson & Stewart Machin joining for Grand National
Ed Chamberlin presented with Mick Fitzgerald and AP McCoy
Ruby Walsh in the analysis track
Alice Plunkett, Rishi Persad, Matt Chapman & Adele Mulrennan reporting from the parade ring and paddock and interviewing jockeys
Brian Gleeson reporting from the betting ring
Luke Harvey reporting from race starts
Olli Bell & Chris Hughes reporting from the Social Stable

Oli Bell joined Ruby Walsh in the analysis truck after the Grand National to analyse a full race replay