# 1970 ITPA Open Indoor – Men's doubles

Tom Okker and Marty Riessen were the defending champions, but lost in the second round this year.
Ilie Năstase and Ion Țiriac successfully defended their title, defeating Arthur Ashe and Dennis Ralston 6–4, 6–3 in the final.

## Seeds

* John Newcombe / Tony Roche (second round)
* Tom Okker / Marty Riessen (second round)
* Robert Lutz / Stan Smith (second round)
* Ken Rosewall / Fred Stolle (first 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 |
| Jim McManus Jim Osborne | 1 | 3 | | | | |
| Ilie Năstase Ion Țiriac | 6 | 6 | | | | |
| Ilie Năstase Ion Țiriac | 6 | 6 | | Ilie Năstase Ion Țiriac | 6 | 6 |
| | | | | Arthur Ashe Dennis Ralston | 4 | 3 |
| Arthur Ashe Dennis Ralston | 7 | 4 | 6 | Arthur Ashe Dennis Ralston | 4 | 3 |
| Andrés Gimeno Manuel Santana | 5 | 6 | 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 | Semifinals | Semifinals | Semifinals |
| | | | | | 2 | T Okker M Riessen | 4 | 6 | 4 | | | | | | | |
| | | | | | | J McManus J Osborne | 6 | 2 | 5 | | | | | | | |
| | | | | | | | | | | J McManus J Osborne | 6 | 5 | 6 | | | |
| | | | | | | | | | | EB Buchholz R Moore | 2 | 7 | 1 | | | |
| | | | | | | EB Buchholz R Moore | 4 | 6 | 5 | | | | | | | |
| | | | | | | G Battrick B Carmichael | 6 | 4 | 3 | | | | | | | |
| | | | | | | | | | | | | | | J McManus J Osborne | 1 | 3 |
| | I Năstase I Țiriac | 6 | 6 | | | | | | | | | | | I Năstase I Țiriac | 6 | 6 |
| | J Borowiak H Rahim | 4 | 4 | | | I Năstase I Țiriac | 6 | 4 | 5 | | | | | | | |
| | C Richey R Taylor | 6 | 2 | 6 | | C Richey R Taylor | 3 | 6 | 4 | | | | | | | |
| | M Cox G Stilwell | 2 | 6 | 4 | | | | | | I Năstase I Țiriac | 6 | 4 | 6 | | | |
| | R Barth T Gorman | 6 | 6 | | | | | | | T Koch P Lall | 3 | 6 | 4 | | | |
| | Donald Lutz B Martin | 1 | 1 | | | R Barth T Gorman | 5 | 7 | 2 | | | | | | | |
| | T Koch P Lall | 7 | 5 | 5 | | T Koch P Lall | 7 | 5 | 5 | | | | | | | |
| 4 | K Rosewall F Stolle | 5 | 7 | 3 | | | | | | | | | | | | |

### 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 |
| 3 | R Lutz S Smith | 6 | 6 | | | | | | | | | | | | | | |
| | H-J Plötz R Russell | 2 | 1 | | 3 | R Lutz S Smith | 4 | 3 | | | | | | | | | |
| | A Ashe D Ralston | 7 | 6 | | | A Ashe D Ralston | 6 | 6 | | | | | | | | | |
| | I El Shafei T Ulrich | 5 | 3 | | | | | | | A Ashe D Ralston | 7 | 6 | | | | | |
| | I Buding J Fillol | 4 | 6 | 5 | | | | | | R Emerson R Laver | 5 | 4 | | | | | |
| | Ž Franulović N Pilić | 6 | 3 | 3 | | I Buding J Fillol | 1 | 4 | | | | | | | | | |
| | | | | | | R Emerson R Laver | 6 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | A Ashe D Ralston | 7 | 4 | 6 |
| | | | | | | | | | | | | | | A Gimeno M Santana | 5 | 6 | 3 |
| | | | | | | C Graebner R Holmberg | 5 | 5 | | | | | | | | | |
| | | | | | | A Gimeno M Santana | 7 | 7 | | | | | | | | | |
| | | | | | | | | | | A Gimeno M Santana | 6 | 5 | 6 | | | | |
| | | | | | | | | | | J Kodeš J Loyo-Mayo | 3 | 7 | 3 | | | | |
| | | | | | | J Kodeš J Loyo-Mayo | 7 | 3 | 5 | | | | | | | | |
| | | | | | 1 | J Newcombe T Roche | 5 | 6 | 4 | | | | | | | | |