# 1973 US Open – Mixed doubles

Marty Riessen and Margaret Court were the defending champions but lost in the final 6–3, 3–6, 7–6 against Owen Davidson and Billie Jean King.

## Seeds

* Owen Davidson / Billie Jean King (champions)
* Marty Riessen / Margaret Court (final)
* Frew McMillan / Rosie Casals (semifinals)
* Jimmy Connors / Chris Evert (semifinals)

## 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 | Final |
| 1 | Owen Davidson Billie Jean King | 7 | 6 | | | | | |
| 3 | Frew McMillan Rosie Casals | 5 | 3 | | | | | |
| 3 | Frew McMillan Rosie Casals | 5 | 3 | 1 | Owen Davidson Billie Jean King | 6 | 3 | 7 |
| | | | | 2 | Marty Riessen Margaret Court | 3 | 6 | 6 |
| 4 | Jimmy Connors Chris Evert | 4 | 6 | 2 | Marty Riessen Margaret Court | 3 | 6 | 6 |
| 2 | Marty Riessen Margaret Court | 6 | 7 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | O Davidson BJ King | 6 | 7 | | | | | | | | | | | | | |
| | S Meer M Tesch | 3 | 5 | | 1 | O Davidson BJ King | 6 | 6 | | | | | | | | |
| | R Reid C Fleming | 6 | 6 | | | R Reid C Fleming | 1 | 3 | | | | | | | | |
| | S Siegel B Goldman | 1 | 3 | | | | | | 1 | O Davidson BJ King | 6 | 6 | | | | |
| | J Singh I Kloss | 7 | 6 | | | | | | | J Singh I Kloss | 4 | 4 | | | | |
| | V Gerulaitis C Graebner | 5 | 4 | | | J Singh I Kloss | 6 | 6 | | | | | | | | |
| | B Carmichael L Hunt | 6 | 6 | 7 | | B Carmichael L Hunt | 4 | 4 | | | | | | | | |
| | J McManus K May | 7 | 1 | 5 | | | | | | | | | 1 | O Davidson BJ King | 7 | 6 |
| 3 | F McMillan R Casals | 6 | 7 | | | | | | | | | | 3 | F McMillan R Casals | 5 | 3 |
| | D Crealy B Stöve | 1 | 5 | | 3 | F McMillan R Casals | 6 | 6 | | | | | | | | |
| | S Smith M Gengler | 6 | 6 | | | S Smith M Gengler | 4 | 4 | | | | | | | | |
| | B Walts S Mehmedbasich | 4 | 4 | | | | | | 3 | F McMillan R Casals | w/o | | | | | |
| | A Ashe A Gibson | 2 | 2 | | | | | | | R Case O Morozova | | | | | | |
| | J-B Chanfreau M Redondo | 6 | 6 | | | J-B Chanfreau M Redondo | 3 | 2 | | | | | | | | |
| | R Case O Morozova | 6 | 7 | | | R Case O Morozova | 6 | 6 | | | | | | | | |
| | H Richardson M Kroschina | 1 | 5 | | | | | | | | | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | W N'Godrella A Kiyomura | | | | | | | | | | | | | | | | | |
| | E Scott K Kemmer | w/o | | | | E Scott K Kemmer | 6 | 4 | 6 | | | | | | | | | |
| | H Irvine H Gourlay | 5 | 3 | | | R Ramírez J Newberry | 2 | 6 | 7 | | | | | | | | | |
| | R Ramírez J Newberry | 7 | 6 | | | | | | | | R Ramírez J Newberry | 6 | 3 | 3$^r$ | | | | |
| | J Lloyd L Charles | 6 | 4 | | | | | | | 4 | J Connors C Evert | 2 | 6 | 2 | | | | |
| | J Feaver V Wade | 7 | 6 | | | J Feaver V Wade | 6 | 3 | 4 | | | | | | | | | |
| | W Lloyd P Bostrom | 6 | 4 | 5 | 4 | J Connors C Evert | 2 | 6 | 6 | | | | | | | | | |
| 4 | J Connors C Evert | 3 | 6 | 7 | | | | | | | | | | | 4 | J Connors C Evert | 4 | 6 |
| | G Teeguarden P Teeguarden | 4 | 4 | | | | | | | | | | | | 2 | M Riessen M Court | 6 | 7 |
| | W Higgins E Birioukova | 6 | 6 | | | W Higgins E Birioukova | 6 | 6 | 5 | | | | | | | | | |
| | P Doerner C Doerner | 3 | 4 | | | B Seewagen F Dürr | 7 | 3 | 7 | | | | | | | | | |
| | B Seewagen F Dürr | 6 | 6 | | | | | | | | B Seewagen F Dürr | 1 | 5 | | | | | |
| | Bob Weyman N Ornstein | | | | | | | | | 2 | M Riessen M Court | 6 | 7 | | | | | |
| | B Manson R Tenney | w/o | | | | B Manson R Tenney | 0 | 0 | | | | | | | | | | |
| | J Gorsuch C Meyer | 0 | 0 | | 2 | M Riessen M Court | 6 | 6 | | | | | | | | | | |
| 2 | M Riessen M Court | 6 | 6 | | | | | | | | | | | | | | | |