| 1 | Sat 14 Aug 2021 | 151-1 v Basildon UnitedFelixstowe & Walton United 1-1 Basildon United | Isthmian League - North Division |
| 2 | Sat 21 Aug 2021 | 155-3 v Southend ManorFelixstowe & Walton United 5-3 Southend Manor | Emirates FA Cup Preliminary Round |
| 3 | Sat 28 Aug 2021 | 150-1 v Canvey IslandCanvey Island 1-0 Felixstowe & Walton United | Isthmian League - North Division |
| 4 | Mon 30 Aug 2021 | 112-0 v Dereham TownFelixstowe & Walton United 2-0 Dereham Town | Isthmian League - North Division |
| 5 | Sat 4 Sep 2021 | 111-3 v Great Wakering RoversFelixstowe & Walton United 1-3 Great Wakering Rovers | Emirates FA Cup First Qualifying Round |
| 6 | Sat 11 Sep 2021 | 71-2 v Coggeshall TownCoggeshall Town 2-1 Felixstowe & Walton United | Isthmian League - North Division |
| 7 | Tue 14 Sep 2021 | 124-1 v Hullbridge SportsHullbridge Sports 1-4 Felixstowe & Walton United | Isthmian League - North Division |
| 8 | Sat 18 Sep 2021 | 122-0 v Hashtag UnitedHashtag United 0-2 Felixstowe & Walton United | Isthmian League - North Division |
| 9 | Sat 9 Oct 2021 | 71-1 v Maldon & TiptreeMaldon & Tiptree 1-1 Felixstowe & Walton United | Buildbase FA Trophy Second Qualifying Round |
| 10 | Tue 12 Oct 2021 | 72-3 v Heybridge SwiftsFelixstowe & Walton United 2-3 Heybridge Swifts | Isthmian League - North Division |
| 11 | Sat 23 Oct 2021 | 110-2 v AFC SudburyAFC Sudbury 2-0 Felixstowe & Walton United | Isthmian League - North Division |
| 12 | Sat 6 Nov 2021 | 140-2 v Stowmarket TownStowmarket Town 2-0 Felixstowe & Walton United | Isthmian League - North Division |
| 13 | Sat 13 Nov 2021 | 122-1 v Peterborough SportsFelixstowe & Walton United 2-1 Peterborough Sports | Buildbase FA Trophy First Round |
| 14 | Sat 20 Nov 2021 | 90-5 v AveleyAveley 5-0 Felixstowe & Walton United | Isthmian League - North Division |
| 15 | Tue 23 Nov 2021 | 5 1-1 v Witham TownFelixstowe & Walton United 1-1 Witham Town | Velocity Trophy First Round |
| 16 | Sat 4 Dec 2021 | 42-1 v RomfordRomford 1-2 Felixstowe & Walton United | Isthmian League - North Division |
| 17 | Tue 14 Dec 2021 | 81-1 v Witham TownFelixstowe & Walton United 1-1 Witham Town | Isthmian League - North Division |
| 18 | Sat 18 Dec 2021 | 122-0 v Canvey IslandFelixstowe & Walton United 2-0 Canvey Island | Isthmian League - North Division |
| 19 | Mon 27 Dec 2021 | 123-1 v Dereham TownDereham Town 1-3 Felixstowe & Walton United | Isthmian League - North Division |
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