| 1 | Sat 5 Aug 2023 | 4 1-2 v AFC TottonHarrow Borough 1-2 AFC Totton | Southern League - Premier South |
| 2 | Tue 15 Aug 2023 | 41-4 v Walton & HershamHarrow Borough 1-4 Walton & Hersham | Southern League - Premier South |
| 3 | Sat 26 Aug 2023 | 152-4 v Poole TownHarrow Borough 2-4 Poole Town | Southern League - Premier South |
| 4 | Sat 23 Sep 2023 | 152-1 v Plymouth ParkwayHarrow Borough 2-1 Plymouth Parkway | Southern League - Premier South |
| 5 | Tue 26 Sep 2023 | 40-3 v Hayes & Yeading UnitedHayes & Yeading United 3-0 Harrow Borough | Southern League - Premier South |
| 6 | Sat 7 Oct 2023 | 71-0 v MargateHarrow Borough 1-0 Margate | Isuzu FA Trophy Third Qualifying Round |
| 7 | Sat 14 Oct 2023 | 14 2-2 v Swindon SupermarineHarrow Borough 2-2 Swindon Supermarine | Southern League - Premier South |
| 8 | Sat 21 Oct 2023 | 152-1 v Winchester CityWinchester City 1-2 Harrow Borough | Southern League - Premier South |
| 9 | Tue 24 Oct 2023 | 41-4 v Bracknell TownHarrow Borough 1-4 Bracknell Town | Southern League - Premier South |
| 10 | Sat 16 Dec 2023 | 154-2 v Basingstoke TownHarrow Borough 4-2 Basingstoke Town | Southern League - Premier South |
| 11 | Mon 1 Jan 2024 | 40-4 v Chesham UnitedChesham United 4-0 Harrow Borough | Southern League - Premier South |
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