| | Event type
Doubles (Mexico), Mixed
| Date | 24 – 26 October 1968 |
|---|---|
| Status | Olympic (non-medal) |
| Location | Centro Deportivo Chapultepec, Ciudad de México |
| Participants | 12 from 6 countries |
Only six teams competed and none could be considered world-class. Mixed national teams were allowed to compete. The event was surprisingly won by the Soviet pair of Zaiga Jansone and Vladimir Korotkov in an era when no Soviet players could be considered world-class.
Round One
| Date | 24 October 1968 |
|---|---|
| Format | Winner of each match advanced to the quarter-finals. |
| Match | Date/Time | Pair | NOC | Result | Pair | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | Heldman / Fitzgibbon |  USA | bye | ||||
| Match #2 | Petersen (BRA) / K'ak'ulia (URS) |  MIX | bye | ||||
| Match #3 | Guzmán / Guzmán |  ECU | bye | ||||
| Match #4 | Jansone / Korotkov |  URS | – | Góngora / Zarazúa |  MEX | walkover | |
| Match #5 | 24 Oct | Darmon / Darmon |  FRA | 6-1, 6-2 | Ziegenfuss / McManus | USA | |
| Match #6 | Montaño / Loyo Mayo | MEX | bye | ||||
| Match #7 | Bartkowicz (USA) / Buding (FRG) | MIX | bye | ||||
| Match #8 | Niessen / Faßbender |  FRG | bye |
Quarter-Finals
| Date | 24 – 26 October 1968 |
|---|---|
| Format | Winner of each match advanced to the semi-finals. |
| Match | Date/Time | Pair | NOC | Result | Pair | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | Petersen (BRA) / K'ak'ulia (URS) | MIX | – | Heldman / Fitzgibbon | USA | walkover | |
| Match #2 | Jansone / Korotkov | URS | – | Guzmán / Guzmán | ECU | walkover | |
| Match #3 | 24 Oct | Darmon / Darmon | FRA | 7-5, 1-6, 6-2 | Montaño / Loyo Mayo | MEX | |
| Match #4 | Bartkowicz (USA) / Buding (FRG) | MIX | – | Niessen / Faßbender | FRG | walkover |
Semi-Finals
| Date | 25 October 1968 |
|---|---|
| Format | Winner of each match advanced to the final. |
| Match | Date/Time | Pair | NOC | Result | Pair | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 25 Oct | Jansone / Korotkov | URS | Petersen (BRA) / K'ak'ulia (URS) | MIX | walkover | |
| Match #2 | 25 Oct | Bartkowicz (USA) / Buding (FRG) | MIX | 3-6, 6-2, 6-1 | Darmon / Darmon | FRA |
Final Round
| Date | 26 October 1968 |
|---|
| Match | Date/Time | Pair | NOC | Result | Pair | NOC | |
|---|---|---|---|---|---|---|---|
| Match 1/2 | 26 Oct | Jansone / Korotkov | URS | 7-5, 6-4 | Bartkowicz (USA) / Buding (FRG) | MIX |