| A | Main line |
| B | Don't Fight It |
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| K 16441 | Ashford & Simpson | Main Line / Don't Fight It (7", Promo) | Warner Bros. Records | K 16441 | UK | 1974 |
| K 16441 | Ashford & Simpson | Main Line (7") | Warner Bros. Records | K 16441 | UK | 1974 |
| WB 7811 | Ashford And Simpson* | Main Line (7", Single, Mono, Promo) | Warner Bros. Records | WB 7811 | US | 1974 |
| WB 7811 | Ashford And Simpson* | Main Line / Don't Fight It (7") | Warner Bros. Records | WB 7811 | Australia | 1974 |
| WB 7811 | Ashford And Simpson* | Main Line (7", Single, Ter) | Warner Bros. Records | WB 7811 | US | 1974 |