# Tennis at the 1912 Summer Olympics – Men's indoor singles

The indoor men's singles competition at the 1912 Summer Olympics was part of the tennis program for the games.

## 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 | Semifinals | Semifinals | Final (gold-medal match) | Final (gold-medal match) | Final (gold-medal match) | Final (gold-medal match) | Final (gold-medal match) | Final (gold-medal match) | Final (gold-medal match) |
| Charles Dixon (GBR) | Charles Dixon (GBR) | 6 | 4 | 6 | 6 | | | | | | | | |
| Anthony Wilding (ANZ) | Anthony Wilding (ANZ) | 0 | 6 | 4 | 4 | | | | | | | | |
| Anthony Wilding (ANZ) | Anthony Wilding (ANZ) | 0 | 6 | 4 | 4 | | Charles Dixon (GBR) | Charles Dixon (GBR) | 6 | 4 | 4 | | |
| | | | | | | | André Gobert (FRA) | André Gobert (FRA) | 8 | 6 | 6 | | |
| André Gobert (FRA) | André Gobert (FRA) | 6 | 10 | 2 | 2 | 6 | André Gobert (FRA) | André Gobert (FRA) | 8 | 6 | 6 | | |
| Gordon Lowe (GBR) | Gordon Lowe (GBR) | 4 | 8 | 6 | 6 | 2 | Bronze-medal match | Bronze-medal match | Bronze-medal match | Bronze-medal match | Bronze-medal match | Bronze-medal match | Bronze-medal match |
| | | | | | | | Anthony Wilding (ANZ) | Anthony Wilding (ANZ) | 4 | 6 | 7 | 6 | |
| | | | | | | | Gordon Lowe (GBR) | Gordon Lowe (GBR) | 6 | 2 | 5 | 0 | |

### Top 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 | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | | C Dixon (GBR) | C Dixon (GBR) | 6 | 9 | 4 | 10 | | | | | | | | | | | |
| | | | | | | T Mavrogordato (GBR) | T Mavrogordato (GBR) | 2 | 7 | 6 | 8 | | | | | | | | | | | |
| | | | | | | | | | | | | C Dixon (GBR) | C Dixon (GBR) | 6 | 6 | 6 | | | | | | |
| | | | | | | | | | | | | K Robětín (BOH) | K Robětín (BOH) | 2 | 4 | 1 | | | | | | |
| | | | | | | K Robětín (BOH) | K Robětín (BOH) | | | | | | | | | | | | | | | |
| M Decugis (FRA) | M Decugis (FRA) | w/o | | | | J Just (BOH) | J Just (BOH) | w/o | | | | | | | | | | | | | | |
| J Just (BOH) | J Just (BOH) | | | | | | | | | | | | | | | | C Dixon (GBR) | C Dixon (GBR) | 6 | 4 | 6 | 6 |
| T Grönfors (SWE) | T Grönfors (SWE) | | | | | | | | | | | | | | | | A Wilding (ANZ) | A Wilding (ANZ) | 0 | 6 | 4 | 4 |
| J Šebek (BOH) | J Šebek (BOH) | w/o | | | | T Grönfors (SWE) | T Grönfors (SWE) | 3 | 3 | 3 | | | | | | | | | | | | |
| L Silfverstolpe (SWE) | L Silfverstolpe (SWE) | 0 | 1 | 1 | | A Wilding (ANZ) | A Wilding (ANZ) | 6 | 6 | 6 | | | | | | | | | | | | |
| A Wilding (ANZ) | A Wilding (ANZ) | 6 | 6 | 6 | | | | | | | | A Wilding (ANZ) | A Wilding (ANZ) | 6 | 6 | 6 | | | | | | |
| F Möller (SWE) | F Möller (SWE) | 2 | 5 | 7 | 4 | | | | | | | G Caridia (GBR) | G Caridia (GBR) | 3 | 1 | 2 | | | | | | |
| G Caridia (GBR) | G Caridia (GBR) | 6 | 7 | 5 | 6 | G Caridia (GBR) | G Caridia (GBR) | 6 | 9 | 7 | | | | | | | | | | | | |
| A Gore (GBR) | A Gore (GBR) | 7 | 6 | 7 | | A Gore (GBR) | A Gore (GBR) | 2 | 7 | 5 | | | | | | | | | | | | |
| H Leffler (SWE) | H Leffler (SWE) | 5 | 4 | 5 | | | | | | | | | | | | | | | | | | |

### Bottom 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 | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| W Boström (SWE) | W Boström (SWE) | 7 | 4 | 4 | 4 | | | | | | | | | | | | | | | | | | | | | |
| A Lowe (GBR) | A Lowe (GBR) | 5 | 6 | 6 | 6 | | A Lowe (GBR) | A Lowe (GBR) | 6 | 3 | 6 | 6 | | | | | | | | | | | | | | |
| M Germot (FRA) | M Germot (FRA) | 4 | 6 | 4 | 6 | 6 | M Germot (FRA) | M Germot (FRA) | 4 | 6 | 1 | 4 | | | | | | | | | | | | | | |
| A Beamish (GBR) | A Beamish (GBR) | 6 | 2 | 6 | 2 | 4 | | | | | | | | A Lowe (GBR) | A Lowe (GBR) | 1 | 1 | 3 | | | | | | | | |
| E Larsen (DEN) | E Larsen (DEN) | 6 | 1 | 7 | 6 | | | | | | | | | A Gobert (FRA) | A Gobert (FRA) | 6 | 6 | 6 | | | | | | | | |
| A Gobert (FRA) | A Gobert (FRA) | 8 | 6 | 5 | 8 | | A Gobert (FRA) | A Gobert (FRA) | 6 | 6 | 7 | | | | | | | | | | | | | | | |
| J Hainz (BOH) | J Hainz (BOH) | 1 | 4 | 6 | 3 | | C Kempe (SWE) | C Kempe (SWE) | 1 | 2 | 5 | | | | | | | | | | | | | | | |
| C Kempe (SWE) | C Kempe (SWE) | 6 | 6 | 3 | 6 | | | | | | | | | | | | | | | A Gobert (FRA) | A Gobert (FRA) | 6 | 10 | 2 | 2 | 6 |
| | | | | | | | | | | | | | | | | | | | | G Lowe (GBR) | G Lowe (GBR) | 4 | 8 | 6 | 6 | 2 |
| | | | | | | | HR Barrett (GBR) | HR Barrett (GBR) | 6 | 1 | 4 | 8 | 4 | | | | | | | | | | | | | |
| | | | | | | | C Setterwall (SWE) | C Setterwall (SWE) | 4 | 6 | 6 | 6 | 6 | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | C Setterwall (SWE) | C Setterwall (SWE) | 4 | 6 | 3 | 6 | | | | | | | |
| | | | | | | | | | | | | | | G Lowe (GBR) | G Lowe (GBR) | 6 | 1 | 6 | 8 | | | | | | | |
| | | | | | | | G Lowe (GBR) | G Lowe (GBR) | 6 | 6 | 6 | | | | | | | | | | | | | | | |
| | | | | | | | C Wennergren (SWE) | C Wennergren (SWE) | 4 | 1 | 4 | | | | | | | | | | | | | | | |