title: 1980 Custom Credit Australian Indoor Championships – Singles
text: # 1980 Custom Credit Australian Indoor Championships – Singles
  
  Vitas Gerulaitis was the defending champion but lost in the final 6–3, 6–4 to John McEnroe.
  
  ## Seeds
  
  * John McEnroe (champion)
  * Gene Mayer (semifinals)
  * Vitas Gerulaitis (final)
  * Wojciech Fibak (first round)
  * John Sadri (quarterfinals)
  * Johan Kriek (semifinals)
  * Bill Scanlon (quarterfinals)
  * Phil Dent (second round)
  
  ## 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
  
  ### Finals
  
  | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
  | - | - | - | - | - | - | - | - |
  | 1 | John McEnroe | 6 | 6 | | | | |
  | 6 | Johan Kriek | 4 | 4 | | | | |
  | 6 | Johan Kriek | 4 | 4 | 1 | John McEnroe | 6 | 6 |
  | | | | | 3 | Vitas Gerulaitis | 3 | 4 |
  | 3 | Vitas Gerulaitis | 6 | 6 | 3 | Vitas Gerulaitis | 3 | 4 |
  | 2 | Gene Mayer | 4 | 3 | | | | |
  
  ### Top half
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 1 | J McEnroe | 6 | 6 | | | | | | | | | | | | | | | |
  | | S Mayer | 3 | 3 | | 1 | J McEnroe | 6 | 6 | | | | | | | | | | |
  | | R Frawley | 6 | 6 | | | R Frawley | 1 | 2 | | | | | | | | | | |
  | | V Van Patten | 1 | 2 | | | | | | | 1 | J McEnroe | 6 | 6 | | | | | |
  | | T Gullikson | 2 | 6 | 6 | | | | | | | T Gullikson | 2 | 4 | | | | | |
  | | K Warwick | 6 | 3 | 4 | | T Gullikson | 6 | 7 | | | | | | | | | | |
  | | T Gorman | 3 | 6 | 4 | 8 | P Dent | 4 | 5 | | | | | | | | | | |
  | 8 | P Dent | 6 | 4 | 6 | | | | | | | | | | | 1 | J McEnroe | 6 | 6 |
  | 4 | W Fibak | 6 | 4 | 6 | | | | | | | | | | | 6 | J Kriek | 4 | 4 |
  | | P Feigl | 1 | 6 | 7 | | P Feigl | 6 | 7 | | | | | | | | | | |
  | | B Walts | 6 | 6 | | | B Walts | 3 | 6 | | | | | | | | | | |
  | | P Fleming | 4 | 3 | | | | | | | | P Feigl | 3 | 6 | 6 | | | | |
  | | P McNamara | 6 | 6 | | | | | | | 6 | J Kriek | 6 | 3 | 7 | | | | |
  | | M Edmondson | 3 | 2 | | | P McNamara | 3 | 7 | 2 | | | | | | | | | |
  | | J Alexander | 2 | 5 | | 6 | J Kriek | 6 | 6 | 6 | | | | | | | | | |
  | 6 | J Kriek | 6 | 7 | | | | | | | | | | | | | | | |
  
  ### Bottom half
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 7 | B Scanlon | 6 | 6 | 6 | | | | | | | | | | | | | |
  | Q | F Buehning | 7 | 4 | 3 | 7 | B Scanlon | 6 | 6 | | | | | | | | | |
  | Q | C Johnstone | 6 | 6 | | Q | C Johnstone | 1 | 2 | | | | | | | | | |
  | | G Masters | 2 | 1 | | | | | | | 7 | B Scanlon | 3 | 3 | | | | |
  | | F Taygan | 3 | 6 | 6 | | | | | | 3 | V Gerulaitis | 6 | 6 | | | | |
  | | C Delaney | 6 | 2 | 2 | | F Taygan | 4 | 0 | | | | | | | | | |
  | | P McNamee | 2 | 2 | | 3 | V Gerulaitis | 6 | 6 | | | | | | | | | |
  | 3 | V Gerulaitis | 6 | 6 | | | | | | | | | | | 3 | V Gerulaitis | 6 | 6 |
  | 5 | J Sadri | 6 | 6 | | | | | | | | | | | 2 | G Mayer | 4 | 3 |
  | | F González | 1 | 3 | | 5 | J Sadri | 7 | 3 | 6 | | | | | | | | |
  | | K Rosewall | 6 | 7 | | | K Rosewall | 5 | 6 | 3 | | | | | | | | |
  | | T Wilkison | 4 | 5 | | | | | | | 5 | J Sadri | 6 | 4 | | | | |
  | | T Roche | 6 | 7 | | | | | | | 2 | G Mayer | 7 | 6 | | | | |
  | | J Newcombe | 4 | 6 | | | T Roche | 3 | 0 | | | | | | | | | |
  | | P Du Pré | 3 | 7 | 2 | 2 | G Mayer | 6 | 6 | | | | | | | | | |
  | 2 | G Mayer | 6 | 6 | 6 | | | | | | | | | | | | | |
  