2018 Swiss Open – Men's Singles Qualifying

Players who neither didn't receive main draw wildcards nor have high rankings for the main draw participate in a qualifying tournament prior to the Swiss Open.

Seeds

 * 1) 🇫🇷 Benoît Paire (First round)
 * 2) 🇰🇿 Mikhail Kukushkin
 * 3) 🇮🇹 Matteo Berrettini
 * 4) 🇦🇷 Leonardo Mayer
 * 5) 🇦🇷 Guido Pella (Second round)
 * 6) 🇩🇪 Peter Gojowczyk (First round)
 * 7) 🇷🇴 Marius Copil
 * 8) 🇺🇸 Tennys Sandgren (Second round)
 * 9) 🇺🇸 Ryan Harrison
 * 10) 🇺🇸 Denis Kudla (First round)
 * 11) 🇪🇸 Albert Ramos Viñolas
 * 12) 🇸🇮 Aljaž Bedene
 * 13) 🇷🇺 Andrey Rublev
 * 14) 🇩🇪 Mischa Zverev (Second round)
 * 15) 🇨🇦 Vasek Pospisil
 * 16) 🇦🇺 Jordan Thompson
 * 17) 🇪🇸 Roberto Carballés Baena (First round)
 * 18) 🇩🇪 Maximilian Mertener
 * 19) 🇪🇸 Jaume Munar
 * 20) 🇯🇵 Yoshihito Nishioka
 * 21) 🇺🇸 Bradley Klahn
 * 22) 🇯🇵 Taro Daniel (First round)
 * 23) 🇺🇸 Mackenzie McDonald (Second round)
 * 24) 🇦🇷 Guido Andreozzi (Second round)
 * 25) 🇦🇷 Federico Delbonis
 * 26) 🇧🇦 Mirza Bašić
 * 27) 🇪🇸 Pablo Andújar (Second round)
 * 28) Christian Garín
 * 29) 🇸🇰 Jozef Kovalík (Second round)
 * 30) 🇵🇱 Hubert Hurkacz (First round)
 * 31) 🇨🇿 Jiří Veselý (Second round)
 * 32) 🇬🇧 Cameron Norrie (Second round)

Qualifiers

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