# 1912 World Hard Court Championships – Men's singles

Otto Froitzheim defeated Oskar Kreuzer in the final, 6–2, 7–5, 4–6, 7–5 to win the inaugural Men's Singles tennis title at the World Hard Court Championships.

## 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 | Semifinals | Final | Final | Final | Final | Final | Final |
| Friedrich Rahe | Friedrich Rahe | 0 | 2 | 3 | | | | | | |
| Otto Froitzheim | Otto Froitzheim | 6 | 6 | 6 | | | | | | |
| Otto Froitzheim | Otto Froitzheim | 6 | 6 | 6 | Otto Froitzheim | Otto Froitzheim | 6 | 7 | 4 | 6 |
| | | | | | Oscar Kreuzer | Oscar Kreuzer | 2 | 5 | 6 | 4 |
| Robert Kleinschroth | Robert Kleinschroth | 3 | 0$^r$ | | Oscar Kreuzer | Oscar Kreuzer | 2 | 5 | 6 | 4 |
| Oscar Kreuzer | Oscar Kreuzer | 6 | 2 | | | | | | | |

### Top half

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| Friedrich Rahe | Friedrich Rahe | 4 | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | |
| E Strauss | E Strauss | 6 | 1 | 1 | 4 | | F Rahe | F Rahe | 6 | 6 | 0 | 6 | | | | | | | | | | | |
| Kurt von Wessely | Kurt von Wessely | | | | | | K von Wessely | K von Wessely | 1 | 4 | 6 | 3 | | | | | | | | | | | |
| M Mény | M Mény | w/o | | | | | | | | | | | F Rahe | F Rahe | 6 | 6 | 2 | | | | | | |
| Georges Gault | Georges Gault | | | | | | | | | | | | H Kleinschroth | H Kleinschroth | 0 | 1 | 0$^r$ | | | | | | |
| Jean-Pierre Samazeuilh | Jean-Pierre Samazeuilh | w/o | | | | | G Gault | G Gault | 2 | 2 | 8 | | | | | | | | | | | | |
| Heinrich Kleinschroth | Heinrich Kleinschroth | | | | | | H Kleinschroth | H Kleinschroth | 6 | 6 | 10 | | | | | | | | | | | | |
| George Caridia | George Caridia | w/o | | | | | | | | | | | | | | | | | F Rahe | F Rahe | 0 | 2 | 3 |
| Harold Kitson | Harold Kitson | 6 | 6 | 6 | | | | | | | | | | | | | | | O Froitzheim | O Froitzheim | 6 | 6 | 6 |
| A Bonnal | A Bonnal | 2 | 1 | 4 | | | H Kitson | H Kitson | 1 | 1 | 3 | | | | | | | | | | | | |
| Otto Froitzheim | Otto Froitzheim | 6 | 7 | 6 | 6 | | O Froitzheim | O Froitzheim | 6 | 6 | 6 | | | | | | | | | | | | |
| Paul de Borman | Paul de Borman | 4 | 9 | 3 | 3 | | | | | | | | O Froitzheim | O Froitzheim | 6 | 6 | 4 | 6 | | | | | |
| Max Decugis | Max Decugis | 6 | 6 | 6 | | | | | | | | | Max Decugis | Max Decugis | 3 | 4 | 6 | 4 | | | | | |
| Imre Arányi | Imre Arányi | 2 | 1 | 0 | | | M Decugis | M Decugis | 6 | 6 | 6 | | | | | | | | | | | | |
| Lionel Tapscott | Lionel Tapscott | 1 | 1 | 6 | 6 | 8 | L Tapscott | L Tapscott | 3 | 1 | 0 | | | | | | | | | | | | |
| Albert Canet | Albert Canet | 6 | 6 | 3 | 4 | 6 | | | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| Arthur Gore | Arthur Gore | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | | |
| Georges Arányi | Georges Arányi | 1 | 1 | 2 | | A Gore | A Gore | 2 | 3 | 3 | | | | | | | | | | | | | |
| Robert Kleinschroth | Robert Kleinschroth | 6 | 6 | 6 | | R Kleinschroth | R Kleinschroth | 6 | 6 | 6 | | | | | | | | | | | | | |
| Maurice Germot | Maurice Germot | 3 | 1 | 3 | | | | | | | | | R Kleinschroth | R Kleinschroth | 6 | 6 | 6 | | | | | | |
| André Gobert | André Gobert | | | | | | | | | | | | A Gobert | A Gobert | 3 | 1 | 4 | | | | | | |
| P Renard | P Renard | w/o | | | | A Gobert | A Gobert | 6 | 6 | 6 | | | | | | | | | | | | | |
| J Arnal | J Arnal | | | | | J Arnal | J Arnal | 1 | 1 | 0 | | | | | | | | | | | | | |
| Otto von Salm-Hoogstraeten | Otto von Salm-Hoogstraeten | w/o | | | | | | | | | | | | | | | | | | R Kleinschroth | R Kleinschroth | 3 | 0$^r$ |
| William Laurentz | William Laurentz | 9 | 6 | 6 | | | | | | | | | | | | | | | | O Kreuzer | O Kreuzer | 6 | 2 |
| Felix Pipes | Felix Pipes | 7 | 3 | 3 | | W Laurentz | W Laurentz | 0 | 6 | 6 | 6 | 6 | | | | | | | | | | | |
| Charles Winslow | Charles Winslow | 6 | 6 | 6 | | C Winslow | C Winslow | 6 | 4 | 4 | 8 | 8 | | | | | | | | | | | |
| Marcel Cousin | Marcel Cousin | 3 | 2 | 1 | | | | | | | | | C Winslow | C Winslow | 2 | 0 | 6 | 6 | 0 | | | | |
| André Chancerel | André Chancerel | 0 | 6 | 6 | 6 | | | | | | | | O Kreuzer | O Kreuzer | 6 | 6 | 4 | 2 | 6 | | | | |
| Louis Trasenter | Louis Trasenter | 6 | 2 | 4 | 4 | A Chancerel | A Chancerel | 3 | 3 | 3 | | | | | | | | | | | | | |
| Oscar Kreuzer | Oscar Kreuzer | 5 | 6 | 6 | 6 | O Kreuzer | O Kreuzer | 6 | 6 | 6 | | | | | | | | | | | | | |
| Félix Poulin | Félix Poulin | 7 | 3 | 2 | 1 | | | | | | | | | | | | | | | | | | |