Home Grounds used:
John Walker's Ground, Southgate; Payne's Folly, Harrow; Royal Air Force Sports Ground, Uxbridge; Old Deer Park, Richmond; Corfton Road, Ealing; Lensbury Sports Ground, Teddington; Birkbeck College Ground, Greenford; Lincoln Road, Enfield

Away Grounds visited:
The Foster's Oval, Kennington; St Lawrence Ground, Canterbury; County Ground, Chelmsford; Station Road, Dorridge; County Ground, Derby; Worcester Royal Grammar School Ground, Flagge Meadow, Worcester; County Ground, Hove; Barclay's Bank Ground, Norbury; Master Park, Oxted; Devonshire Park Ground, Weston-super-Mare; Headingley, Leeds

Second XI playing record:
P 25     W 5     D 10     L 8     NR 2

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

37 players appeared in Second XI matches for Middlesex in 1991:
PJ Atherley; AA Barnett; MR Bate; DM Bowen; KR Brown; CL Cairns; NG Cowans; JP Dickson; P Farbrace; RA Fay; SB Forey; JWA Gillson; IJ Gould; A Habib; NP Harvey; DW Headley; SP Hughes; IJF Hutchinson; K Jahangir; RL Johnson; M Keech; MJ Lowrey; GI Macmillan; CM Patel; GM Pooley; JC Pooley; TA Radford; CJ Rogers; MA Roseberry; RJ Sims; SA Sylvester; CW Taylor; PCR Tufnell; PN Weekes; JMS Whittington; NF Williams; RS Yeabsley.