| 2021-05-09 | SunderlandvNorthamptonLeague One · England | 1–1 | League One · England |
| 2021-05-01 | NorthamptonvBlackpoolLeague One · England | 0–3 | League One · England |
| 2021-04-24 | GillinghamvNorthamptonLeague One · England | 2–2 | League One · England |
| 2021-04-20 | NorthamptonvIpswichLeague One · England | 3–0 | League One · England |
| 2021-04-16 | PeterborovNorthamptonLeague One · England | 3–1 | League One · England |
| 2021-04-10 | NorthamptonvBristol RvsLeague One · England | 1–1 | League One · England |
| 2021-04-05 | HullvNorthamptonLeague One · England | 3–0 | League One · England |
| 2021-04-02 | NorthamptonvShrewsburyLeague One · England | 1–0 | League One · England |
| 2021-03-27 | AFC WimbledonvNorthamptonLeague One · England | 1–0 | League One · England |
| 2021-03-23 | NorthamptonvOxfordLeague One · England | 1–0 | League One · England |
| 2021-03-20 | NorthamptonvCreweLeague One · England | 0–1 | League One · England |
| 2021-03-13 | DoncastervNorthamptonLeague One · England | 0–0 | League One · England |
| 2021-03-09 | CharltonvNorthamptonLeague One · England | 2–1 | League One · England |
| 2021-03-06 | NorthamptonvPortsmouthLeague One · England | 4–1 | League One · England |
| 2021-03-02 | NorthamptonvPlymouthLeague One · England | 2–0 | League One · England |
| 2021-02-27 | SwindonvNorthamptonLeague One · England | 2–1 | League One · England |
| 2021-02-23 | NorthamptonvRochdaleLeague One · England | 0–0 | League One · England |
| 2021-02-20 | Milton Keynes DonsvNorthamptonLeague One · England | 4–3 | League One · England |
| 2021-02-16 | IpswichvNorthamptonLeague One · England | 0–0 | League One · England |
| 2021-02-13 | NorthamptonvBurtonLeague One · England | 0–2 | League One · England |
| 2021-02-09 | NorthamptonvWiganLeague One · England | 0–1 | League One · England |
| 2021-02-06 | AccringtonvNorthamptonLeague One · England | 0–0 | League One · England |
| 2021-02-02 | BlackpoolvNorthamptonLeague One · England | 2–0 | League One · England |
| 2021-01-26 | Fleetwood TownvNorthamptonLeague One · England | 0–0 | League One · England |
| 2021-01-23 | LincolnvNorthamptonLeague One · England | 2–1 | League One · England |
| 2021-01-02 | NorthamptonvSunderlandLeague One · England | 0–0 | League One · England |