The Millers have some decent away days, and if fans can get back in the grounds, an away trip at league newcommers Harrogate Town looks a decent day out.
The home games include a visit from premiership Newcastle, with fellow north east neighbours Middlesborough visiting 3 days later before the Millers start thier League 1 campaign
| Parkgate FC | A | Sat Jul 10 2021 13:00 (UK) |
| Frickley Athletic | A | Sat Jul 17 2021 15:00 (UK) |
| Rochdale | A | Tue Jul 20 2021 19:00 (UK) |
| Harrogate Town | A | Wed Jul 21 2021 19:30 (UK) |
| Grimsby Town | A | Sat Jul 24 2021 13:00 (UK) |
| Newcastle United | H | Tue Jul 27 2021 19:00 (UK) |
| Belper Town | A | Thu Jul 29 2021 19:00 (UK) |
| Middlesbrough | H | Fri Jul 30 2021 19:00 (UK) |
