2020 Australian Open – Wheelchair quad singles
# 2020 Australian Open – Wheelchair quad singles

Five-time defending champion Dylan Alcott defeated Andy Lapthorne in the final, 6–0, 6–4 to win the quad singles wheelchair tennis title at the 2020 Australian Open.

## Seeds

* Dylan Alcott (champion)
* Andy Lapthorne (final)

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Final

| Final | Final | Final | Final | Final |
| - | - | - | - | - |
| 1 | Dylan Alcott | 6 | 6 | |
| 2 | Andy Lapthorne | 0 | 4 | |

### Round robin

| | | Alcott | Lapthorne | Wagner | Davidson | RR W–L | Set W–L | Game W–L | Standings |
| - | - | - | - | - | - | - | - | - | - |
| 1 | Dylan Alcott | | 7–5, 6–1 | 6–3, 6–1 | 6–2, 6–0 | 3–0 | 6–0 | 37–12 | 1 |
| 2 | Andy Lapthorne | 5–7, 1–6 | | 6–3, $7–6^{(8–6)}$ | $7–6^{(7–5)},$ 3–6, $7–6^{(10–8)}$ | 2–1 | 4–3 | 36–40 | 2 |
| | David Wagner | 3–6, 1–6 | 3–6, $6–7^{(6–8)}$ | | 6–2, 6–3 | 1–2 | 2–4 | 25–30 | 3 |
| WC | Heath Davidson | 2–6, 0–6 | $6–7^{(5–7)},$ 6–3, $6–7^{(8–10)}$ | 2–6, 3–6 | | 0–3 | 1–6 | 25–41 | 4 |
