# 2017–18 Welsh Football League Division One

The 2017–18 Welsh Football League Division One (known as the Nathaniel Cars Welsh Football League Division One for sponsorship reasons) was the 2017–18 season of the top football league in South Wales. Together with its North Wales counterpart, the Cymru Alliance, the 16-team division forms the second tier of the Welsh football league system, one level below the nationwide Welsh Premier League. The season began on 11 August 2017 and concluded in May 2018.

## Teams

Barry Town United were champions in the previous season and were promoted to the 2017–18 Welsh Premier League.
The bottom two placed teams from the previous season, Risca United and Caldicot Town, were relegated to the 2017–18 Welsh Football League Division Two; they were replaced by Llanelli Town, Briton Ferry Llansawel and Cwmamman United, the top three teams from Division Two the previous season.

### Stadia and locations

| Team | Location | Stadium |
| Afan Lido | Aberavon | Marston Stadium |
| Briton Ferry Llansawel | Briton Ferry | Old Road |
| Caerau (Ely) | Ely | Cwrt-yr-Ala |
| Cambrian & Clydach Vale | Clydach Vale | King George's New Field |
| Cwmamman United | Glanamman | Grenig Park |
| Cwmbran Celtic | Cwmbran | Celtic Park |
| Goytre | Penperlleni | Plough Road |
| Goytre United | Goytre | Glenhafod Park Stadium |
| Haverfordwest County | Haverfordwest | Bridge Meadow Stadium |
| Llanelli Town | Llanelli | Stebonheath Park |
| Monmouth Town | Monmouth | Chippenham Sports Ground |
| Pen-y-Bont | Bridgend | Kymco Stadium |
| Port Talbot Town | Port Talbot | Victoria Road |
| Taff's Well | Taff's Well | Rhiw Dda'r |
| Ton Pentre | Ton Pentre | Ynys Park |
| Undy Athletic | Undy | The Causeway |

## League table

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion or relegation |
| 1 | Llanelli Town (C, P) | 30 | 24 | 3 | 3 | 87 | 33 | +54 | 75 | Promotion to the Welsh Premier League |
| 2 | Haverfordwest County | 30 | 19 | 3 | 8 | 65 | 37 | +28 | 60 | |
| 3 | Pen-y-Bont | 30 | 18 | 6 | 6 | 64 | 37 | +27 | 57 | |
| 4 | Cambrian & Clydach Vale | 30 | 17 | 3 | 10 | 58 | 39 | +19 | 54 | |
| 5 | Afan Lido | 30 | 15 | 4 | 11 | 61 | 48 | +13 | 49 | |
| 6 | Goytre | 30 | 15 | 3 | 12 | 51 | 62 | −11 | 48 | |
| 7 | Goytre United | 30 | 13 | 8 | 9 | 53 | 52 | +1 | 47 | |
| 8 | Cwmbran Celtic | 30 | 14 | 4 | 12 | 67 | 51 | +16 | 46 | |
| 9 | Undy Athletic | 30 | 13 | 5 | 12 | 62 | 60 | +2 | 44 | |
| 10 | Taff's Well | 30 | 11 | 5 | 14 | 52 | 48 | +4 | 38 | |
| 11 | Briton Ferry Llansawel | 30 | 10 | 7 | 13 | 58 | 64 | −6 | 37 | |
| 12 | Cwmamman United | 30 | 8 | 6 | 16 | 38 | 59 | −21 | 30 | |
| 13 | Port Talbot Town | 30 | 9 | 11 | 10 | 58 | 53 | +5 | 29 | Possible relegation to Welsh League Division Two |
| 14 | Monmouth Town | 30 | 7 | 4 | 19 | 44 | 73 | −29 | 25 | Possible relegation to Welsh League Division Two |
| 15 | Caerau (Ely) | 30 | 5 | 3 | 22 | 32 | 78 | −46 | 18 | Relegation to Welsh League Division Two |
| 16 | Ton Pentre | 30 | 1 | 7 | 22 | 26 | 82 | −56 | 10 | Relegation to Welsh League Division Two |
* ↑ Pen-y-Bont were deducted three points for fielding an ineligible player.
* ↑ Port Talbot Town were deducted nine points.

## Results

| Home \ Away | AFA | BFL | CAE | CCV | CWU | CWC | GOA | GOU | HAV | LLA | MON | PYB | PTA | TAF | TON | UND |
| Afan Lido | — | 0–1 | 3–0 | 4–1 | 2–1 | 5–0 | 4–0 | 1–6 | 1–2 | 0–4 | 3–1 | 1–2 | 3–3 | 3–2 | 4–2 | 4–1 |
| Briton Ferry Llansawel | 2–2 | — | 4–3 | 1–2 | 1–2 | 4–5 | 3–1 | 3–1 | 0–3 | 1–4 | 1–0 | 3–3 | 5–2 | 0–4 | 3–1 | 3–3 |
| Caerau (Ely) | 0–4 | 3–2 | — | 0–1 | 0–1 | 0–5 | 0–1 | 2–4 | 1–3 | 1–2 | 2–1 | 1–1 | 1–8 | 0–3 | 0–1 | 1–2 |
| Cambrian & Clydach Vale | 0–2 | 2–0 | 2–1 | — | 2–3 | 1–0 | 5–2 | 1–1 | 3–0 | 1–3 | 4–1 | 0–1 | 1–0 | 4–0 | 5–1 | 3–0 |
| Cwmamman United | 1–0 | 1–1 | 2–5 | 0–5 | — | 1–3 | 1–2 | 1–2 | 0–2 | 1–3 | 0–2 | 0–3 | 2–2 | 4–2 | 2–1 | 2–0 |
| Cwmbran Celtic | 1–2 | 2–1 | 2–0 | 1–3 | 2–2 | — | 4–1 | 0–1 | 2–3 | 1–3 | 3–1 | 3–0 | 0–3 | 1–0 | 1–1 | 3–2 |
| Goytre | 2–1 | 3–1 | 4–1 | 0–2 | 1–0 | 0–10 | — | 0–0 | 3–2 | 1–4 | 4–1 | 3–0 | 0–1 | 3–2 | 2–1 | 4–1 |
| Goytre United | 3–1 | 3–1 | 1–0 | 0–1 | 3–0 | 1–4 | 1–5 | — | 1–7 | 0–5 | 4–0 | 1–2 | 2–1 | 1–3 | 4–2 | 2–2 |
| Haverfordwest County | 3–0 | 2–3 | 5–0 | 1–0 | 2–1 | 1–1 | 5–0 | 2–3 | — | 3–1 | 0–0 | 1–2 | 2–2 | 2–1 | 2–1 | 2–1 |
| Llanelli Town | 1–2 | 4–1 | 4–1 | 4–2 | 1–0 | 5–3 | 2–0 | 3–3 | 2–0 | — | 4–1 | 1–0 | 2–2 | 5–2 | 3–0 | 0–1 |
| Monmouth Town | 2–3 | 2–1 | 2–3 | 4–0 | 1–1 | 1–4 | 2–0 | 1–3 | 3–2 | 2–2 | — | 2–4 | 0–0 | 1–3 | 3–0 | 1–6 |
| Pen-y-Bont | 2–0 | 2–2 | 2–1 | 0–2 | 2–1 | 3–2 | 2–2 | 0–0 | 3–1 | 0–4 | 2–1 | — | 3–0 | 3–1 | 8–0 | 8–1 |
| Port Talbot Town | 1–1 | 3–5 | 0–0 | 2–2 | 3–3 | 1–1 | 2–3 | 1–1 | 1–2 | 1–3 | 4–2 | 0–2 | — | 2–1 | 2–0 | 2–3 |
| Taff's Well | 2–1 | 0–0 | 2–2 | 4–0 | 0–1 | 3–0 | 3–1 | 2–2 | 0–1 | 1–3 | 3–0 | 0–0 | 0–1 | — | 2–0 | 2–4 |
| Ton Pentre | 2–2 | 0–4 | 0–2 | 1–1 | 3–3 | 0–2 | 1–3 | 0–0 | 0–2 | 1–3 | 2–4 | 0–2 | 1–5 | 2–2 | — | 1–5 |
| Undy Athletic | 0–2 | 2–2 | 6–1 | 2–1 | 3–1 | 2–1 | 0–0 | 2–1 | 1–2 | 1–2 | 4–2 | 3–2 | 2–3 | 1–2 | 1–1 | — |