| 07 Apr 80 | QF        | Philadelphia 76ersPhiladelphia | 107 - 104 | Atlanta HawksAtlanta Hawks |
| 09 Apr 80 | QF        | Seattle SuperSonicsSeattle Super | 114 - 113 | Milwaukee BucksMilwaukee Buc |
| 09 Apr 80 | QF        | Los Angeles LakersLos Angeles L | 119 - 110 | Phoenix SunsPhoenix Suns |
| 10 Apr 80 | QF        | Philadelphia 76ersPhiladelphia | 99 - 92 | Atlanta HawksAtlanta Hawks |
| 10 Apr 80 | QF        | Boston CelticsBoston Celtic | 119 - 101 | Houston RocketsHouston Rocke |
| 10 Apr 80 | QF        | Seattle SuperSonicsSeattle Super | 112 - 114 | Milwaukee BucksMilwaukee Buc |
| 10 Apr 80 | QF        | Los Angeles LakersLos Angeles L | 131 - 128 | Phoenix SunsPhoenix Suns |
| 11 Apr 80 | QF        | Atlanta HawksAtlanta Hawks | 105 - 93 | Philadelphia 76ersPhiladelphia |
| 12 Apr 80 | QF        | Boston CelticsBoston Celtic | 95 - 75 | Houston RocketsHouston Rocke |
| 12 Apr 80 | QF        | Milwaukee BucksMilwaukee Buc | 95 - 91 | Seattle SuperSonicsSeattle Super |
| 12 Apr 80 | QF        | Phoenix SunsPhoenix Suns | 105 - 108 | Los Angeles LakersLos Angeles L |
| 14 Apr 80 | QF        | Atlanta HawksAtlanta Hawks | 83 - 107 | Philadelphia 76ersPhiladelphia |
| 14 Apr 80 | QF        | Houston RocketsHouston Rocke | 81 - 100 | Boston CelticsBoston Celtic |
| 14 Apr 80 | QF        | Milwaukee BucksMilwaukee Buc | 107 - 112 | Seattle SuperSonicsSeattle Super |
| 14 Apr 80 | QF        | Phoenix SunsPhoenix Suns | 127 - 101 | Los Angeles LakersLos Angeles L |
| 15 Apr 80 | QF        | Houston RocketsHouston Rocke | 121 - 138 | Boston CelticsBoston Celtic |
| 16 Apr 80 | QF        | Philadelphia 76ersPhiladelphia | 105 - 100 | Atlanta HawksAtlanta Hawks |
| 16 Apr 80 | QF        | Seattle SuperSonicsSeattle Super | 97 - 108 | Milwaukee BucksMilwaukee Buc |
| 16 Apr 80 | QF        | Los Angeles LakersLos Angeles L | 126 - 101 | Phoenix SunsPhoenix Suns |
| 19 Apr 80 | QF        | Milwaukee BucksMilwaukee Buc | 85 - 86 | Seattle SuperSonicsSeattle Super |
| 21 Apr 80 | QF        | Seattle SuperSonicsSeattle Super | 98 - 94 | Milwaukee BucksMilwaukee Buc |