Springfield 1978
Heinz Gunthardt won the title, beating Harold Solomon 6–3 3–6 6–2 in the final.
Main draw 32 players
- 1🇺🇸Harold SolomonFinal · Lost to Heinz Gunthardt
- 2🇺🇸Stan SmithQuarterfinals · Lost to Byron Bertram
- 3🇺🇸Bob LutzQuarterfinals · Lost to Tomas Smid
- 4🇨🇿Jan KodesQuarterfinals · Lost to Heinz Gunthardt
- 5🇺🇸Mike FishbachRound of 32 · Lost to Byron Bertram
- 6🇺🇸Marty RiessenQuarterfinals · Lost to Harold Solomon
- 7🇺🇸Brian TeacherRound of 16 · Lost to Heinz Gunthardt
- 8🇨🇿Jiri HrebecRound of 32 · Lost to Tomas Smid
- LL🇨🇭Heinz GunthardtFinal · Champion
- 🇿🇦Byron BertramSemifinals · Lost to Heinz Gunthardt
- 🇨🇿Tomas SmidSemifinals · Lost to Harold Solomon
- 🇨🇱Alvaro FillolRound of 16 · Lost to Marty Riessen
- 🇿🇦Bernie MittonRound of 16 · Lost to Harold Solomon
- 🇿🇦John YuillRound of 16 · Lost to Byron Bertram
- 🇻🇪Jorge AndrewRound of 16 · Lost to Bob Lutz
- 🇦🇺Paul McnameeRound of 16 · Lost to Tomas Smid
- 🇬🇧Roger TaylorRound of 16 · Lost to Stan Smith
- 🇦🇺Ross CaseRound of 16 · Lost to Jan Kodes
- 🇺🇸Andrew PattisonRound of 32 · Lost to Jan Kodes
- 🇺🇸Cliff RicheyRound of 32 · Lost to Stan Smith
- 🇸🇪Douglas PalmRound of 32 · Lost to Harold Solomon
- 🇺🇸Erik Van DillenRound of 32 · Lost to Heinz Gunthardt
- 🇦🇺Geoff MastersRound of 32 · Lost to Bob Lutz
- 🇪🇬Ismail El ShafeiRound of 32 · Lost to Roger Taylor
- 🇸🇪Jan NorbackRound of 32 · Lost to Paul Mcnamee
- 🇨🇿Jiri GranatRound of 32 · Lost to Marty Riessen
- 🇺🇸Joel BaileyRound of 32 · Lost to Alvaro Fillol
- 🇺🇸Keith RichardsonRound of 32 · Lost to Brian Teacher
- 🇺🇸Pat DupreRound of 32 · Lost to Ross Case
- 🇦🇺Steve DochertyRound of 32 · Lost to John Yuill
- 🇺🇸Tim WilkisonRound of 32 · Lost to Bernie Mitton
- 🇨🇿Vladimir ZednikRound of 32 · Lost to Jorge Andrew