Home Grounds used:
The Walk, Potters Bar; Corfton Road, Ealing; Payne's Folly, Harrow; Lensbury Sports Ground, Teddington; Milverton Road, Willesden; Woodside, Watford; Lincoln Road, Enfield; Royal Air Force Sports Ground, Uxbridge

Away Grounds visited:
The Foster's Oval, Kennington; County Ground, New Road, Worcester; Arlington Avenue, Leamington Spa; County Ground, Hove; Arundel Castle Cricket Club Ground, Arundel; County Ground, Southampton; Dean Park, Bournemouth; County Ground, Chelmsford; County Ground, Northampton; St Lawrence Ground, Canterbury; Master Park, Oxted; Lord's Nursery Ground, St John's Wood

Second XI playing record:
P 28     W 18     D 7     L 2     NR 1

Click on this link for the season's Second XI scorecards and results

33 players appeared in Second XI matches for Middlesex in 1989:
AA Barnett; DJP Boden; KR Brown; RO Butcher; AR Caddick; JD Carr; NG Cowans; RM Ellcock; AGJ Fraser; ARC Fraser; RP Gofton; A Habib; JD Harvey; GT Headley; JR Hemstock; SP Hughes; IJF Hutchinson; M Keech; DM Kutner; MJ Lowrey; CHH Pegg; GM Pooley; JC Pooley; TA Radford; CT Radley; MR Ramprakash; MA Roseberry; NF Sargeant; CJ Smith; JF Sykes; PCR Tufnell; PN Weekes; NF Williams.