| 1 | Sat 6 Aug 2022 | 10-0 v Tiverton TownTiverton Town 0-0 Harrow Borough | Southern League - Premier South |
| 2 | Sat 13 Aug 2022 | 11-1 v Winchester CityHarrow Borough 1-1 Winchester City | Southern League - Premier South |
| 3 | Mon 15 Aug 2022 | 11-4 v Bracknell TownBracknell Town 4-1 Harrow Borough | Southern League - Premier South |
| 4 | Sat 20 Aug 2022 | 10-1 v Hanwell TownHarrow Borough 0-1 Hanwell Town | Southern League - Premier South |
| 5 | Sat 27 Aug 2022 | 10-7 v Weston-super-MareWeston-super-Mare 7-0 Harrow Borough | Southern League - Premier South |
| 6 | Mon 29 Aug 2022 | 11-2 v Hayes & Yeading UnitedHarrow Borough 1-2 Hayes & Yeading United | Southern League - Premier South |
| 7 | Sat 3 Sep 2022 | 1 1-4 v Bracknell TownBracknell Town 4-1 Harrow Borough | Emirates FA Cup First Qualifying Round |
| 8 | Sat 24 Sep 2022 | 11-0 v North LeighHarrow Borough 1-0 North Leigh | Southern League - Premier South |
| 9 | Mon 26 Sep 2022 | 13-1 v Beaconsfield TownBeaconsfield Town 1-3 Harrow Borough | Southern League - Premier South |
| 10 | Sat 1 Oct 2022 | 12-3 v Dorchester TownDorchester Town 3-2 Harrow Borough | Southern League - Premier South |
| 11 | Wed 19 Oct 2022 | 11-2 v Swindon SupermarineSwindon Supermarine 2-1 Harrow Borough | Southern League - Premier South |
| 12 | Sat 22 Oct 2022 | 12-2 v Merthyr TownMerthyr Town 2-2 Harrow Borough | Southern League - Premier South |
| 13 | Wed 26 Oct 2022 | 13-1 v Gosport BoroughGosport Borough 1-3 Harrow Borough | Southern League - Premier South |
| 14 | Sat 29 Oct 2022 | 12-0 v Hayes & Yeading UnitedHarrow Borough 2-0 Hayes & Yeading United | Isuzu FA Trophy First Round |
| 15 | Sat 5 Nov 2022 | 13-3 v Yate TownYate Town 3-3 Harrow Borough | Southern League - Premier South |
| 16 | Sat 12 Nov 2022 | 12-1 v Poole TownHarrow Borough 2-1 Poole Town | Southern League - Premier South |
| 17 | Sat 19 Nov 2022 | 14-2 v Concord RangersConcord Rangers 2-4 Harrow Borough | Isuzu FA Trophy Second Round |
| 18 | Sat 26 Nov 2022 | 10-1 v SalisburyHarrow Borough 0-1 Salisbury | Southern League - Premier South |
| 19 | Sat 3 Dec 2022 | 11-2 v Truro CityTruro City 2-1 Harrow Borough | Southern League - Premier South |
| 20 | Wed 7 Dec 2022 | 11-0 v Hartley WintneyHarrow Borough 1-0 Hartley Wintney | Southern League - Premier South |
| 21 | Wed 21 Dec 2022 | 12-1 v Swindon SupermarineSwindon Supermarine 1-2 Harrow Borough | Isuzu FA Trophy Third Round |
| 22 | Mon 26 Dec 2022 | 10-2 v Metropolitan PoliceHarrow Borough 0-2 Metropolitan Police | Southern League - Premier South |
| 23 | Mon 2 Jan 2023 | 12-2 v Hayes & Yeading UnitedHayes & Yeading United 2-2 Harrow Borough | Southern League - Premier South |
| 24 | Sat 7 Jan 2023 | 11-5 v Weston-super-MareHarrow Borough 1-5 Weston-super-Mare | Southern League - Premier South |
| 25 | Sat 28 Jan 2023 | 10-3 v HendonHendon 3-0 Harrow Borough | Southern League - Premier South |
| 26 | Tue 31 Jan 2023 | 12-2 v FC Halifax TownHarrow Borough 2-2 FC Halifax Town | Isuzu FA Trophy Fourth Round |
| 27 | Sat 4 Feb 2023 | 11-0 v Beaconsfield TownHarrow Borough 1-0 Beaconsfield Town | Southern League - Premier South |
| 28 | Tue 7 Feb 2023 | 10-0 v Winchester CityWinchester City 0-0 Harrow Borough | Southern League - Premier South |
| 29 | Sat 11 Feb 2023 | 10-2 v North LeighNorth Leigh 2-0 Harrow Borough | Southern League - Premier South |
| 30 | Tue 14 Feb 2023 | 10-0 v SalisburySalisbury 0-0 Harrow Borough | Southern League - Premier South |
| 31 | Sat 18 Feb 2023 | 11-3 v Swindon SupermarineHarrow Borough 1-3 Swindon Supermarine | Southern League - Premier South |
| 32 | Sat 25 Feb 2023 | 12-2 v Chesham UnitedChesham United 2-2 Harrow Borough | Southern League - Premier South |
| 33 | Tue 28 Feb 2023 | 11-1 v Hanwell TownHanwell Town 1-1 Harrow Borough | Southern League - Premier South |
| 34 | Sat 4 Mar 2023 | 11-2 v Merthyr TownHarrow Borough 1-2 Merthyr Town | Southern League - Premier South |
| 35 | Tue 7 Mar 2023 | 12-2 v Tiverton TownHarrow Borough 2-2 Tiverton Town | Southern League - Premier South |
| 36 | Tue 14 Mar 2023 | 12-1 v Enfield TownEnfield Town 1-2 Harrow Borough | Middlesex County Cup Semi Final |
| 37 | Sat 18 Mar 2023 | 10-4 v Plymouth ParkwayPlymouth Parkway 4-0 Harrow Borough | Southern League - Premier South |
| 38 | Tue 21 Mar 2023 | 10-4 v Bracknell TownHarrow Borough 0-4 Bracknell Town | Southern League - Premier South |
| 39 | Sat 25 Mar 2023 | 10-2 v Gosport BoroughHarrow Borough 0-2 Gosport Borough | Southern League - Premier South |
| 40 | Tue 28 Mar 2023 | 11-2 v Dorchester TownHarrow Borough 1-2 Dorchester Town | Southern League - Premier South |
| 41 | Tue 4 Apr 2023 | 10-1 v Hartley WintneyHartley Wintney 1-0 Harrow Borough | Southern League - Premier South |
| 42 | Fri 7 Apr 2023 | 11-4 v Truro CityHarrow Borough 1-4 Truro City | Southern League - Premier South |
| 43 | Mon 10 Apr 2023 | 13-1 v Metropolitan PoliceMetropolitan Police 1-3 Harrow Borough | Southern League - Premier South |
| 44 | Sat 15 Apr 2023 | 10-1 v Poole TownPoole Town 1-0 Harrow Borough | Southern League - Premier South |
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