Predicted Winners in BOLD

Note these are snap judgment gut picks.  I have not and will not bet on tennis.
Kevin Anderson VS (5) Alexander Zverev – An upset to start out? Why not?

(1) Novak Djokovic VS Damir Dzumhur
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(12) Denis Shapovalov VS (WC) Sebastian Korda – A fun youth clash that likely goes to the more experienced player.
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Steve Johnson VS (16) John Isner – I expect a long match. 
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(4) Stefanos Tsitsipas VS Albert Ramos-Vinolas – Not an easy first-round match
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Reilly Opelka VS (7) David Goffin – Two out of three and I might pick the other way.  This is a match that will draw out contrasts between the players.  Over time, I think Goffin figures out what he needs to do.
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(32) Adrian Mannarino VS Lorenzo Sonego
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Pedro Martinez VS  (28) Jan-Lennard Struff
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(9) Diego Schwartzman VS Cameron Norrie
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Dominik Koepfer VS (19) Taylor Fritz – A good match if you have a ticket
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Kyle Edmund VS Alexander Bublik
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Stefano Travaglia VS Jordan Thompson
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Peter Gojowczyk VS (24) Hubert Hurkacz
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Mohamed Safwat VS Gilles Simon – The veteran should reach the round of 64.
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Marcos Giron VS Marc Polmans
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Alejandro Davidovich Fokina VS Dennis Novak
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Paolo Lorenzi VS (WC) Brandon Nakashima
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Joao Sousa VS (WC) Michael Mmoh
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Juan Ignacio Londero VS Evgeny Donskoy
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Maxime Cressy VS Jozef Kovalik
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Federico Gaio VS Ricardas Berankis
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Pablo Andujar VS (27) Borna Coric – Andujar may not win, but he generally is a tough out so I will pick him.
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(20) Pablo Carreno Busta VS Yasutaka Uchiyama
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(WC) Ulises Blanch VS (13) Cristian Garin
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(18) Dusan Lajovic VS Egor Gerasimov
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(PR) Jack Sock VS Pablo Cuevas
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(26) Filip Krajinovic VS Mikael Ymer
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Jason Jung VS Federico Coria
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(WC) Mitchell Krueger VS Pedro Sousa
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(WC) Thai-Son Kwiatkowski VS Soonwoo Kwon
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Attila Balazsc VS Mikhail Kukushkin
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Lloyd Harris VS Marco Cecchinato