| 1 | Sat 10 Aug 2019 | 52-3 v Herne BayHerne Bay 3-2 Felixstowe & Walton United | Friendly |
| 2 | Sat 17 Aug 2019 | 5 1-4 v Great Wakering RoversFelixstowe & Walton United 1-4 Great Wakering Rovers | BetVictor Isthmian North Division |
| 3 | Tue 20 Aug 2019 | 5 1-0 v AFC SudburyAFC Sudbury 0-1 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 4 | Sat 24 Aug 2019 | 5 1-2 v AFC SudburyAFC Sudbury 2-1 Felixstowe & Walton United | Emirates FA Cup Preliminary Round |
| 5 | Mon 26 Aug 2019 | 51-2 v Heybridge SwiftsFelixstowe & Walton United 1-2 Heybridge Swifts | BetVictor Isthmian North Division |
| 6 | Sat 31 Aug 2019 | 50-3 v Soham Town RangersSoham Town Rangers 3-0 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 7 | Tue 3 Sep 2019 | 31-5 v Bury TownBury Town 5-1 Felixstowe & Walton United | Velocity Trophy Group 1 |
| 8 | Sat 14 Sep 2019 | 3 3-1 v Cambridge CityFelixstowe & Walton United 3-1 Cambridge City | BetVictor Isthmian North Division |
| 9 | Tue 17 Sep 2019 | 30-0 v Coggeshall TownCoggeshall Town 0-0 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 10 | Tue 24 Sep 2019 | 61-3 v Maldon & TiptreeFelixstowe & Walton United 1-3 Maldon & Tiptree | Velocity Trophy Group 1 |
| 11 | Sat 28 Sep 2019 | 30-5 v Maldon & TiptreeMaldon & Tiptree 5-0 Felixstowe & Walton United | Buildbase FA Trophy Extra Preliminary Round |
| 12 | Tue 1 Oct 2019 | 14 0-4 v AFC SudburyAFC Sudbury 4-0 Felixstowe & Walton United | Velocity Trophy Group 1 |
| 13 | Sat 5 Oct 2019 | 6 1-3 v Hullbridge SportsHullbridge Sports 3-1 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 14 | Sat 19 Oct 2019 | 121-2 v Bury TownFelixstowe & Walton United 1-2 Bury Town | BetVictor Isthmian North Division |
| 15 | Tue 29 Oct 2019 | 30-2 v Maldon & TiptreeFelixstowe & Walton United 0-2 Maldon & Tiptree | BetVictor Isthmian North Division |
| 16 | Sat 2 Nov 2019 | 33-3 v Brentwood TownFelixstowe & Walton United 3-3 Brentwood Town | BetVictor Isthmian North Division |
| 17 | Sat 9 Nov 2019 | 30-1 v HistonHiston 1-0 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 18 | Sat 16 Nov 2019 | 61-0 v Grays AthleticFelixstowe & Walton United 1-0 Grays Athletic | BetVictor Isthmian North Division |
| 19 | Sat 23 Nov 2019 | 3 1-1 v TilburyTilbury 1-1 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 20 | Sat 30 Nov 2019 | 122-3 v Dereham TownFelixstowe & Walton United 2-3 Dereham Town | BetVictor Isthmian North Division |
| 21 | Sat 7 Dec 2019 | 3 1-2 v RomfordFelixstowe & Walton United 1-2 Romford | BetVictor Isthmian North Division |
| 22 | Sat 14 Dec 2019 | 121-3 v Canvey IslandCanvey Island 3-1 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 23 | Sat 28 Dec 2019 | 32-0 v Basildon UnitedFelixstowe & Walton United 2-0 Basildon United | BetVictor Isthmian North Division |
| 24 | Wed 1 Jan 2020 | 31-3 v Heybridge SwiftsHeybridge Swifts 3-1 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 25 | Sat 4 Jan 2020 | 32-2 v Soham Town RangersFelixstowe & Walton United 2-2 Soham Town Rangers | BetVictor Isthmian North Division |
| 26 | Sat 18 Jan 2020 | 31-4 v Bury TownBury Town 4-1 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 27 | Mon 20 Jan 2020 | 3 3-4 v AveleyAveley 4-3 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 28 | Sat 25 Jan 2020 | 3 1-1 v Hullbridge SportsFelixstowe & Walton United 1-1 Hullbridge Sports | BetVictor Isthmian North Division |
| 29 | Sat 22 Feb 2020 | 3 2-0 v Brentwood TownBrentwood Town 0-2 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 30 | Sat 7 Mar 2020 | 12 2-1 v Grays AthleticGrays Athletic 1-2 Felixstowe & Walton United | BetVictor Isthmian North Division |
| 31 | Tue 10 Mar 2020 | 33-3 v Canvey IslandFelixstowe & Walton United 3-3 Canvey Island | BetVictor Isthmian North Division |