Internazionali d'Italia 2018 - Singolare maschile
{{Tennis riepilogo anno|2018|Internazionali d'Italia|
| vincitore = {{Bandiera|ESP}} [[Rafael Nadal]]
| finalista =  {{Bandiera|DEU}} [[Alexander Zverev]]
| punteggio = 6-1, 1-6, 6-3
}}
{{torna a|Internazionali d'Italia 2018}}

[[Alexander Zverev]] era il detentore del titolo ma è stato sconfitto da [[Rafael Nadal]] in finale per 6-1, 1-6, 6-3.

== Teste di serie ==
Le prime otto teste di serie ricevono un [[Glossario del tennis#B|bye]] per il secondo turno.
{{Colonne}}
# {{Bandiera|ESP}} '''[[Rafael Nadal]] (campione)'''
# {{Bandiera|DEU}} [[Alexander Zverev]] ''(finale)''
# {{Bandiera|BGR}} [[Grigor Dimitrov]] ''(secondo turno)''
# {{Bandiera|HRV}} [[Marin Čilić]] ''(semifinale)''
# {{Bandiera|ARG}} [[Juan Martín del Potro]] ''(terzo turno, ritirato)''
# {{Bandiera|AUT}} [[Dominic Thiem]] ''(secondo turno)''
# {{Bandiera|ZAF}} [[Kevin Anderson (tennista)|Kevin Anderson]] ''(secondo turno, ritirato)''
# {{Bandiera|USA}} [[John Isner]] ''(secondo turno)''
{{colonne spezza}}
<ol start="9">
<li> {{Bandiera|BEL}} [[David Goffin]] ''(quarti di finale)''</li>
<li> {{Bandiera|ESP}} [[Pablo Carreño Busta]] ''(quarti di finale)''</li>
<li> {{Bandiera|SRB}} [[Novak Đoković]] ''(semifinale)''</li>
<li> {{Bandiera|USA}} [[Sam Querrey]] ''(primo turno)''</li>
<li> {{Bandiera|USA}} [[Jack Sock]] ''(secondo turno)''</li>
<li> {{Bandiera|ARG}} [[Diego Schwartzman]] ''(secondo turno)''</li>
<li> {{Bandiera|CZE}} [[Tomáš Berdych]] ''(primo turno)''</li>
<li> {{Bandiera|FRA}} [[Lucas Pouille]] ''(secondo turno)''</li>
</ol>
{{colonne fine}}

== Qualificati ==
{{Vedi anche|Internazionali d'Italia 2018 - Qualificazioni singolare maschile}}
{{Colonne}}
# {{Bandiera|GRC}} [[Stefanos Tsitsipas]] ''(secondo turno)''
# {{Bandiera|CHL}} [[Nicolás Jarry (tennista)|Nicolás Jarry]] ''(primo turno)''
# {{Bandiera|ARG}} [[Federico Delbonis]] ''(primo turno)''
# {{Bandiera|USA}} [[Frances Tiafoe]] ''(primo turno)''
{{Colonne spezza}}
<ol start="5">
<li> {{Bandiera|GEO}} [[Nikoloz Basilašvili]] ''(secondo turno)''</li>
<li> {{Bandiera|ITA}} [[Filippo Baldi]] ''(primo turno)''</li>
<li> {{Bandiera|TUN}} [[Malek Jaziri]] ''(primo turno)''</li>
</ol>
{{Colonne fine}}

== Wildcard ==
{{Colonne}}
# {{Bandiera|ITA}} [[Matteo Berrettini]] ''(secondo turno)''
# {{Bandiera|ITA}} [[Marco Cecchinato]] ''(secondo turno)''
{{Colonne spezza}}
<ol start="3">
<li> {{Bandiera|ITA}} [[Andreas Seppi]] ''(primo turno)''</li>
<li> {{Bandiera|ITA}} [[Lorenzo Sonego]] ''(secondo turno)''</li>
</ol>
{{Colonne fine}}

== Tabellone ==
{{tabellone tennis}}
=== Parte finale ===
{{Torneo quarti 3-3-3
| RD1=Quarti di finale
| RD2=Semifinali
| RD3=Finale

|team-width=175

|RD1-seed1=1
|RD1-team1='''{{Bandiera|ESP}} [[Rafael Nadal]]'''
|RD1-score1-1=4
|RD1-score1-2='''6'''
|RD1-score1-3='''6'''
|RD1-seed2=
|RD1-team2={{Bandiera|ITA}} [[Fabio Fognini]]
|RD1-score2-1='''6'''
|RD1-score2-2=1
|RD1-score2-3=2

|RD1-seed3=
|RD1-team3={{Bandiera|JPN}} [[Kei Nishikori]]
|RD1-score3-1='''6'''
|RD1-score3-2=1
|RD1-score3-3=3
|RD1-seed4=11
|RD1-team4='''{{Bandiera|SRB}} [[Novak Đoković]]'''
|RD1-score4-1=2
|RD1-score4-2='''6'''
|RD1-score4-3='''6'''

|RD1-seed5=10
|RD1-team5={{Bandiera|ESP}} [[Pablo Carreño Busta]] 
|RD1-score5-1=3
|RD1-score5-2=3
|RD1-score5-3=
|RD1-seed6=4
|RD1-team6='''{{Bandiera|HRV}} [[Marin Čilić]]'''
|RD1-score6-1='''6'''
|RD1-score6-2='''6'''
|RD1-score6-3=

|RD1-seed7=9
|RD1-team7={{Bandiera|BEL}} [[David Goffin]]
|RD1-score7-1=4
|RD1-score7-2='''6'''
|RD1-score7-3=3
|RD1-seed8=2
|RD1-team8='''{{Bandiera|DEU}} [[Alexander Zverev]]'''
|RD1-score8-1='''6'''
|RD1-score8-2=3
|RD1-score8-3='''6'''

|RD2-seed1=1
|RD2-team1='''{{Bandiera|ESP}} [[Rafael Nadal]]'''
|RD2-score1-1='''7'''
|RD2-score1-2='''6'''
|RD2-score1-3=
|RD2-seed2=11
|RD2-team2={{Bandiera|SRB}} [[Novak Đoković]]
|RD2-score2-1=6<sup>4</sup>
|RD2-score2-2=3
|RD2-score2-3=

|RD2-seed3=4
|RD2-team3={{Bandiera|HRV}} [[Marin Čilić]]
|RD2-score3-1=6<sup>13</sup>
|RD2-score3-2=5
|RD2-score3-3=
|RD2-seed4=2
|RD2-team4='''{{Bandiera|DEU}} [[Alexander Zverev]]'''
|RD2-score4-1='''7'''
|RD2-score4-2='''7'''
|RD2-score4-3=

|RD3-seed1=1
|RD3-team1='''{{Bandiera|ESP}} [[Rafael Nadal]]'''
|RD3-score1-1='''6'''
|RD3-score1-2=1
|RD3-score1-3='''6'''
|RD3-seed2=2
|RD3-team2={{Bandiera|DEU}} [[Alexander Zverev]]
|RD3-score2-1=1
|RD3-score2-2='''6'''
|RD3-score2-3=3
}}

=== Parte alta ===
==== Sezione 1 ====
{{Torneo-tennis-4 colonne
| RD1=Primo turno
| RD2=Secondo turno
| RD3=Terzo turno
| RD4=Quarti di finale

| RD1-seed03=
| RD1-team03={{Bandiera|ESP}} [[Fernando Verdasco|F Verdasco]]
| RD1-score03-1=3
| RD1-score03-2=1
| RD1-score03-3=
| RD1-seed04=
| RD1-team04='''{{Bandiera|BIH}} [[Damir Džumhur|D Džumhur]]'''
| RD1-score04-1='''6'''
| RD1-score04-2='''6'''
| RD1-score04-3=

| RD1-seed05=
| RD1-team05={{Bandiera|RUS}} [[Daniil Medvedev|D Medvedev]]
| RD1-score05-1='''6'''
| RD1-score05-2=4
| RD1-score05-3=1
| RD1-seed06=
| RD1-team06='''{{Bandiera|NLD}} [[Robin Haase|R Haase]]'''
| RD1-score06-1=3
| RD1-score06-2='''6'''
| RD1-score06-3='''6'''

| RD1-seed07=
| RD1-team07='''{{Bandiera|CAN}} [[Denis Shapovalov|D Shapovalov]]'''
| RD1-score07-1=1
| RD1-score07-2='''6'''
| RD1-score07-3='''7'''
| RD1-seed08=15
| RD1-team08={{Bandiera|CZE}} [[Tomáš Berdych|T Berdych]]
| RD1-score08-1='''6'''
| RD1-score08-2=3
| RD1-score08-3=6<sup>5</sup>

| RD1-seed09=12
| RD1-team09={{Bandiera|USA}} [[Sam Querrey|S Querrey]]
| RD1-score09-1=2
| RD1-score09-2=6<sup>7</sup>
| RD1-score09-3=
| RD1-seed10=
| RD1-team10='''{{Bandiera|DEU}} [[Peter Gojowczyk|P Gojowczyk]]'''
| RD1-score10-1='''6'''
| RD1-score10-2='''7'''
| RD1-score10-3=

| RD1-seed11=WC
| RD1-team11='''{{Bandiera|ITA}} [[Lorenzo Sonego|L Sonego]]'''
| RD1-score11-1=2
| RD1-score11-2='''7'''
| RD1-score11-3='''6'''
| RD1-seed12=
| RD1-team12={{Bandiera|FRA}} [[Adrian Mannarino|A Mannarino]]
| RD1-score12-1='''6'''
| RD1-score12-2=6<sup>4</sup>
| RD1-score12-3=3

| RD1-seed13=
| RD1-team13='''{{Bandiera|ITA}} [[Fabio Fognini|F Fognini]]'''
| RD1-score13-1='''6'''
| RD1-score13-2='''6'''
| RD1-score13-3=
| RD1-seed14=
| RD1-team14={{Bandiera|FRA}} [[Gaël Monfils|G Monfils]]
| RD1-score14-1=3
| RD1-score14-2=1
| RD1-score14-3=

| RD2-seed01=1
| RD2-team01='''{{Bandiera|ESP}} [[Rafael Nadal|R Nadal]]'''
| RD2-score01-1='''6'''
| RD2-score01-2='''6'''
| RD2-score01-3=
| RD2-seed02=
| RD2-team02={{Bandiera|BIH}} [[Damir Džumhur|D Džumhur]] 
| RD2-score02-1=1
| RD2-score02-2=0
| RD2-score02-3=

| RD2-seed03=
| RD2-team03={{Bandiera|NLD}} [[Robin Haase|R Haase]]
| RD2-score03-1=6<sup>3</sup>
| RD2-score03-2='''7'''
| RD2-score03-3=3
| RD2-seed04=
| RD2-team04='''{{Bandiera|CAN}} [[Denis Shapovalov|D Shapovalov]]'''
| RD2-score04-1='''7'''
| RD2-score04-2=6<sup>5</sup>
| RD2-score04-3='''6'''

| RD2-seed05=
| RD2-team05='''{{Bandiera|DEU}} [[Peter Gojowczyk|P Gojowczyk]]'''
| RD2-score05-1='''6'''
| RD2-score05-2='''6'''
| RD2-score05-3=
| RD2-seed06=WC
| RD2-team06={{Bandiera|ITA}} [[Lorenzo Sonego|L Sonego]]
| RD2-score06-1=3
| RD2-score06-2=4
| RD2-score06-3=

| RD2-seed07=
| RD2-team07='''{{Bandiera|ITA}} [[Fabio Fognini|F Fognini]]'''
| RD2-score07-1='''6'''
| RD2-score07-2=1
| RD2-score07-3='''6'''
| RD2-seed08=6
| RD2-team08={{Bandiera|AUT}} [[Dominic Thiem|D Thiem]]
| RD2-score08-1=4
| RD2-score08-2='''6'''
| RD2-score08-3=3

| RD3-seed01=1
| RD3-team01='''{{Bandiera|ESP}} [[Rafael Nadal|R Nadal]]''' 
| RD3-score01-1='''6'''
| RD3-score01-2='''6'''
| RD3-score01-3=
| RD3-seed02=
| RD3-team02={{Bandiera|CAN}} [[Denis Shapovalov|D Shapovalov]]
| RD3-score02-1=4
| RD3-score02-2=1
| RD3-score02-3=

| RD3-seed03=
| RD3-team03={{Bandiera|DEU}} [[Peter Gojowczyk|P Gojowczyk]] 
| RD3-score03-1=4
| RD3-score03-2=4
| RD3-score03-3=
| RD3-seed04=
| RD3-team04='''{{Bandiera|ITA}} [[Fabio Fognini|F Fognini]]'''
| RD3-score04-1='''6'''
| RD3-score04-2='''6'''
| RD3-score04-3=

| RD4-seed01=1
| RD4-team01='''{{Bandiera|ESP}} [[Rafael Nadal|R Nadal]]''' 
| RD4-score01-1=4
| RD4-score01-2='''6'''
| RD4-score01-3='''6'''
| RD4-seed02=
| RD4-team02={{Bandiera|ITA}} [[Fabio Fognini|F Fognini]] 
| RD4-score02-1='''6'''
| RD4-score02-2=1
| RD4-score02-3=2
}}

==== Sezione 2 ====
{{Torneo-tennis-4 colonne
| RD1=Primo turno
| RD2=Secondo turno
| RD3=Terzo turno
| RD4=Quarti di finale

| RD1-seed03=
| RD1-team03='''{{Bandiera|JPN}} [[Kei Nishikori|K Nishikori]]'''
| RD1-score03-1='''7'''
| RD1-score03-2='''6'''
| RD1-score03-3=
| RD1-seed04=
| RD1-team04={{Bandiera|ESP}} [[Feliciano López|F López]]
| RD1-score04-1=6<sup>5</sup>
| RD1-score04-2=4
| RD1-score04-3=

| RD1-seed05=
| RD1-team05={{Bandiera|RUS}} [[Karen Chačanov|K Chačanov]]
| RD1-score05-1=5
| RD1-score05-2='''7'''
| RD1-score05-3=6<sup>6</sup>
| RD1-seed06=
| RD1-team06='''{{Bandiera|DEU}} [[Philipp Kohlschreiber|P Kohlschreiber]]'''
| RD1-score06-1='''7'''
| RD1-score06-2=6<sup>7</sup>
| RD1-score06-3='''7'''

| RD1-seed07=
| RD1-team07={{Bandiera|ESP}} [[David Ferrer|D Ferrer]]
| RD1-score07-1=3
| RD1-score07-2=4
| RD1-score07-3=
| RD1-seed08=13
| RD1-team08='''{{Bandiera|USA}} [[Jack Sock|J Sock]]'''
| RD1-score08-1='''6'''
| RD1-score08-2='''6'''
| RD1-score08-3=

| RD1-seed09=11
| RD1-team09='''{{Bandiera|SRB}} [[Novak Đoković|N Đoković]]'''
| RD1-score09-1='''6'''
| RD1-score09-2='''6'''
| RD1-score09-3=
| RD1-seed10=
| RD1-team10={{Bandiera|UKR}} [[Aleksandr Dolhopolov|A Dolhopolov]]
| RD1-score10-1=1
| RD1-score10-2=3
| RD1-score10-3=

| RD1-seed11=Q
| RD1-team11='''{{Bandiera|GEO}} [[Nikoloz Basilašvili|N Basilašvili]]'''
| RD1-score11-1='''6'''
| RD1-score11-2=4
| RD1-score11-3='''6'''
| RD1-seed12=Q
| RD1-team12={{Bandiera|ITA}} [[Filippo Baldi|F Baldi]]
| RD1-score12-1=4
| RD1-score12-2='''6'''
| RD1-score12-3=4

| RD1-seed13=Q
| RD1-team13={{Bandiera|ARG}} [[Federico Delbonis|F Delbonis]]
| RD1-score13-1='''6'''
| RD1-score13-2=5
| RD1-score13-3=1
| RD1-seed14=
| RD1-team14='''{{Bandiera|ESP}} [[Albert Ramos Viñolas|A Ramos Viñolas]]'''
| RD1-score14-1=2
| RD1-score14-2='''7'''
| RD1-score14-3='''6'''

| RD2-seed01=3
| RD2-team01={{Bandiera|BGR}} [[Grigor Dimitrov|G Dimitrov]]
| RD2-score01-1='''7'''
| RD2-score01-2=5
| RD2-score01-3=4
| RD2-seed02=
| RD2-team02='''{{Bandiera|JPN}} [[Kei Nishikori|K Nishikori]]'''
| RD2-score02-1=6<sup>4</sup>
| RD2-score02-2='''7'''
| RD2-score02-3='''6'''

| RD2-seed03=
| RD2-team03='''{{Bandiera|DEU}} [[Philipp Kohlschreiber|P Kohlschreiber]]'''
| RD2-score03-1='''6'''
| RD2-score03-2='''6'''
| RD2-score03-3=
| RD2-seed04=13
| RD2-team04={{Bandiera|USA}} [[Jack Sock|J Sock]]
| RD2-score04-1=4
| RD2-score04-2=3
| RD2-score04-3=

| RD2-seed05=11
| RD2-team05='''{{Bandiera|SRB}} [[Novak Đoković|N Đoković]]'''
| RD2-score05-1='''6'''
| RD2-score05-2='''6'''
| RD2-score05-3=
| RD2-seed06=Q
| RD2-team06={{Bandiera|GEO}} [[Nikoloz Basilašvili|N Basilašvili]] 
| RD2-score06-1=4
| RD2-score06-2=2
| RD2-score06-3=

| RD2-seed07=
| RD2-team07='''{{Bandiera|ESP}} [[Albert Ramos Viñolas|A Ramos Viñolas]]'''
| RD2-score07-1=6<sup>5</sup>
| RD2-score07-2='''7'''
| RD2-score07-3='''7'''
| RD2-seed08=8
| RD2-team08={{Bandiera|USA}} [[John Isner|J Isner]] 
| RD2-score08-1='''7'''
| RD2-score08-2=6<sup>2</sup>
| RD2-score08-3=6<sup>5</sup>

| RD3-seed01=
| RD3-team01='''{{Bandiera|JPN}} [[Kei Nishikori|K Nishikori]]'''
| RD3-score01-1='''6'''
| RD3-score01-2='''6'''
| RD3-score01-3=
| RD3-seed02=
| RD3-team02={{Bandiera|DEU}} [[Philipp Kohlschreiber|P Kohlschreiber]] 
| RD3-score02-1=1
| RD3-score02-2=2
| RD3-score02-3=

| RD3-seed03=11
| RD3-team03='''{{Bandiera|SRB}} [[Novak Đoković|N Đoković]]''' 
| RD3-score03-1='''6'''
| RD3-score03-2='''7'''
| RD3-score03-3=
| RD3-seed04=
| RD3-team04={{Bandiera|ESP}} [[Albert Ramos Viñolas|A Ramos Viñolas]] 
| RD3-score04-1=1
| RD3-score04-2=5
| RD3-score04-3=

| RD4-seed01=
| RD4-team01={{Bandiera|JPN}} [[Kei Nishikori|K Nishikori]] 
| RD4-score01-1='''6'''
| RD4-score01-2=1
| RD4-score01-3=3
| RD4-seed02=11
| RD4-team02='''{{Bandiera|SRB}} [[Novak Đoković|N Đoković]]'''  
| RD4-score02-1=2
| RD4-score02-2='''6'''
| RD4-score02-3='''6'''
}}

=== Parte bassa ===
==== Sezione 3 ====
{{Torneo-tennis-4 colonne
| RD1=Primo turno
| RD2=Secondo turno
| RD3=Terzo turno
| RD4=Quarti di finale
| RD1-seed03=
| RD1-team03='''{{Bandiera|SVN}} [[Aljaž Bedene|A Bedene]]'''
| RD1-score03-1='''6'''
| RD1-score03-2='''6'''
| RD1-score03-3=
| RD1-seed04=
| RD1-team04={{Bandiera|LUX}} [[Gilles Müller|G Müller]]
| RD1-score04-1=4
| RD1-score04-2=4
| RD1-score04-3=

| RD1-seed05=
| RD1-team05={{Bandiera|CHE}} [[Stan Wawrinka|S Wawrinka]]
| RD1-score05-1=4
| RD1-score05-2=4
| RD1-score05-3=
| RD1-seed06=
| RD1-team06='''{{Bandiera|USA}} [[Steve Johnson (tennista)|S Johnson]]'''
| RD1-score06-1='''6'''
| RD1-score06-2='''6'''
| RD1-score06-3=

| RD1-seed07=
| RD1-team07={{Bandiera|USA}} [[Jared Donaldson|J Donaldson]]
| RD1-score07-1=4
| RD1-score07-2='''6'''
| RD1-score07-3=0
| RD1-seed08=10
| RD1-team08='''{{Bandiera|ESP}} [[Pablo Carreño Busta|P Carreño Busta]]'''
| RD1-score08-1='''6'''
| RD1-score08-2=3
| RD1-score08-3='''6'''

| RD1-seed09=14
| RD1-team09='''{{Bandiera|ARG}} [[Diego Schwartzman|D Schwartzman]]'''
| RD1-score09-1='''6'''
| RD1-score09-2='''6'''
| RD1-score09-3=
| RD1-seed10=Q
| RD1-team10={{Bandiera|CHL}} [[Nicolás Jarry (tennista)|N Jarry]] 
| RD1-score10-1=4
| RD1-score10-2=1
| RD1-score10-3=

| RD1-seed11=
| RD1-team11='''{{Bandiera|FRA}} [[Benoît Paire|B Paire]]'''
| RD1-score11-1='''6'''
| RD1-score11-2='''6'''
| RD1-score11-3=
| RD1-seed12=
| RD1-team12={{Bandiera|FRA}} [[Richard Gasquet|R Gasquet]]
| RD1-score12-1=4
| RD1-score12-2=4
| RD1-score12-3=

| RD1-seed13=
| RD1-team13='''{{Bandiera|USA}} [[Ryan Harrison|R Harrison]]'''
| RD1-score13-1='''7'''
| RD1-score13-2='''6'''
| RD1-score13-3=
| RD1-seed14=
| RD1-team14={{Bandiera|JPN}} [[Yūichi Sugita|Y Sugita]]
| RD1-score14-1=6<sup>5</sup>
| RD1-score14-2=3
| RD1-score14-3=

| RD2-seed01=7
| RD2-team01={{Bandiera|ZAF}} [[Kevin Anderson (tennista)|K Anderson]]
| RD2-score01-1=4
| RD2-score01-2=<small>r</small>
| RD2-score01-3=
| RD2-seed02=
| RD2-team02='''{{Bandiera|SVN}} [[Aljaž Bedene|A Bedene]]'''
| RD2-score02-1='''6'''
| RD2-score02-2=
| RD2-score02-3=

| RD2-seed03=
| RD2-team03={{Bandiera|USA}} [[Steve Johnson (tennista)|S Johnson]]
| RD2-score03-1=4
| RD2-score03-2='''6'''
| RD2-score03-3=4
| RD2-seed04=10
| RD2-team04='''{{Bandiera|ESP}} [[Pablo Carreño Busta|P Carreño Busta]]'''
| RD2-score04-1='''6'''
| RD2-score04-2=2
| RD2-score04-3='''6'''

| RD2-seed05=14
| RD2-team05={{Bandiera|ARG}} [[Diego Schwartzman|D Schwartzman]] 
| RD2-score05-1='''6'''
| RD2-score05-2=4
| RD2-score05-3=2
| RD2-seed06=
| RD2-team06='''{{Bandiera|FRA}} [[Benoît Paire|B Paire]]'''
| RD2-score06-1=2
| RD2-score06-2='''6'''
| RD2-score06-3='''6'''

| RD2-seed07=
| RD2-team07={{Bandiera|USA}} [[Ryan Harrison|R Harrison]]
| RD2-score07-1='''7'''
| RD2-score07-2=1
| RD2-score07-3=6<sup>(1)</sup>
| RD2-seed08=4
| RD2-team08='''{{Bandiera|HRV}} [[Marin Čilić|M Čilić]]'''
| RD2-score08-1=6<sup>3</sup>
| RD2-score08-2='''6'''
| RD2-score08-3='''7'''

| RD3-seed01=
| RD3-team01={{Bandiera|SVN}} [[Aljaž Bedene|A Bedene]] 
| RD3-score01-1=4
| RD3-score01-2='''7'''
| RD3-score01-3=2
| RD3-seed02=10
| RD3-team02='''{{Bandiera|ESP}} [[Pablo Carreño Busta|P Carreño Busta]]''' 
| RD3-score02-1='''6'''
| RD3-score02-2=6<sup>3</sup>
| RD3-score02-3='''6'''

| RD3-seed03=
| RD3-team03={{Bandiera|FRA}} [[Benoît Paire|B Paire]]
| RD3-score03-1=3
| RD3-score03-2=4
| RD3-score03-3=
| RD3-seed04=4
| RD3-team04='''{{Bandiera|HRV}} [[Marin Čilić|M Čilić]]'''
| RD3-score04-1='''6'''
| RD3-score04-2='''6'''
| RD3-score04-3=

| RD4-seed01=10
| RD4-team01={{Bandiera|ESP}} [[Pablo Carreño Busta|P Carreño Busta]]  
| RD4-score01-1=3
| RD4-score01-2=3
| RD4-score01-3=
| RD4-seed02=4
| RD4-team02='''{{Bandiera|HRV}} [[Marin Čilić|M Čilić]]''' 
| RD4-score02-1='''6'''
| RD4-score02-2='''6'''
| RD4-score02-3=
}}

==== Sezione 4 ====
{{Torneo-tennis-4 colonne
| RD1=Primo turno
| RD2=Secondo turno
| RD3=Terzo turno
| RD4=Quarti di finale

| RD1-seed03=
| RD1-team03={{Bandiera|HRV}} [[Borna Ćorić|B Ćorić]]
| RD1-score03-1=1
| RD1-score03-2=<small>r</small>
| RD1-score03-3=
| RD1-seed04=Q
| RD1-team04='''{{Bandiera|GRC}} [[Stefanos Tsitsipas|S Tsitsipas]]'''
| RD1-score04-1=4
| RD1-score04-2=
| RD1-score04-3=

| RD1-seed05=
| RD1-team05={{Bandiera|URY}} [[Pablo Cuevas|P Cuevas]]
| RD1-score05-1='''6'''
| RD1-score05-2=5
| RD1-score05-3=4
| RD1-seed06=WC
| RD1-team06='''{{Bandiera|ITA}} [[Marco Cecchinato|M Cecchinato]]'''
| RD1-score06-1=2
| RD1-score06-2='''7'''
| RD1-score06-3='''6'''

| RD1-seed07=
| RD1-team07={{Bandiera|ARG}} [[Leonardo Mayer|L Mayer]]
| RD1-score07-1=1
| RD1-score07-2=2
| RD1-score07-3=
| RD1-seed08=9
| RD1-team08='''{{Bandiera|BEL}} [[David Goffin|D Goffin]]'''
| RD1-score08-1='''6'''
| RD1-score08-2='''6'''
| RD1-score08-3=

| RD1-seed09=16
| RD1-team09='''{{Bandiera|FRA}} [[Lucas Pouille|L Pouille]]'''
| RD1-score09-1='''6'''
| RD1-score09-2=3
| RD1-score09-3='''7'''
| RD1-seed10=WC
| RD1-team10={{Bandiera|ITA}} [[Andreas Seppi|A Seppi]]
| RD1-score10-1=2
| RD1-score10-2='''6'''
| RD1-score10-3=6<sup>3</sup>

| RD1-seed11=Q
| RD1-team11={{Bandiera|TUN}} [[Malek Jaziri|M Jaziri]]
| RD1-score11-1=3
| RD1-score11-2='''6'''
| RD1-score11-3=3
| RD1-seed12=
| RD1-team12='''{{Bandiera|GBR}} [[Kyle Edmund|K Edmund]]'''
| RD1-score12-1='''6'''
| RD1-score12-2=3
| RD1-score12-3='''6'''

| RD1-seed13=WC
| RD1-team13='''{{Bandiera|ITA}} [[Matteo Berrettini|M Berrettini]]'''
| RD1-score13-1='''6'''
| RD1-score13-2='''7'''
| RD1-score13-3=
| RD1-seed14=Q
| RD1-team14={{Bandiera|USA}} [[Frances Tiafoe|F Tiafoe]] 
| RD1-score14-1=3
| RD1-score14-2=6<sup>(1)</sup>
| RD1-score14-3=

| RD2-seed01=5
| RD2-team01='''{{Bandiera|ARG}} [[Juan Martín del Potro|JM del Potro]]'''
| RD2-score01-1='''7'''
| RD2-score01-2='''6'''
| RD2-score01-3=
| RD2-seed02=Q
| RD2-team02={{Bandiera|GRC}} [[Stefanos Tsitsipas|S Tsitsipas]] 
| RD2-score02-1=5
| RD2-score02-2=3
| RD2-score02-3=

| RD2-seed03=WC
| RD2-team03={{Bandiera|ITA}} [[Marco Cecchinato|M Cecchinato]]
| RD2-score03-1='''7'''
| RD2-score03-2=2
| RD2-score03-3=2
| RD2-seed04=9
| RD2-team04='''{{Bandiera|BEL}} [[David Goffin|D Goffin]]'''
| RD2-score04-1=5
| RD2-score04-2='''6'''
| RD2-score04-3='''6'''

| RD2-seed05=16
| RD2-team05={{Bandiera|FRA}} [[Lucas Pouille|L Pouille]] 
| RD2-score05-1=2
| RD2-score05-2=6<sup>3</sup>
| RD2-score05-3=
| RD2-seed06=
| RD2-team06='''{{Bandiera|GBR}} [[Kyle Edmund|K Edmund]]'''
| RD2-score06-1='''6'''
| RD2-score06-2='''7'''
| RD2-score06-3=

| RD2-seed07=WC
| RD2-team07={{Bandiera|ITA}} [[Matteo Berrettini|M Berrettini]]
| RD2-score07-1=5
| RD2-score07-2=2
| RD2-score07-3=
| RD2-seed08=2
| RD2-team08='''{{Bandiera|DEU}} [[Alexander Zverev|A Zverev]]''' 
| RD2-score08-1='''7'''
| RD2-score08-2='''6'''
| RD2-score08-3=

| RD3-seed01=5
| RD3-team01={{Bandiera|ARG}} [[Juan Martín del Potro|JM del Potro]] 
| RD3-score01-1=2
| RD3-score01-2=5
| RD3-score01-3=<small>r</small>
| RD3-seed02=9
| RD3-team02='''{{Bandiera|BEL}} [[David Goffin|D Goffin]]''' 
| RD3-score02-1='''6'''
| RD3-score02-2=4
| RD3-score02-3=

| RD3-seed03=
| RD3-team03={{Bandiera|GBR}} [[Kyle Edmund|K Edmund]] 
| RD3-score03-1=5
| RD3-score03-2=6<sup>11</sup>
| RD3-score03-3=
| RD3-seed04=2
| RD3-team04='''{{Bandiera|DEU}} [[Alexander Zverev|A Zverev]]'''
| RD3-score04-1='''7'''
| RD3-score04-2='''7'''
| RD3-score04-3=

| RD4-seed01=9
| RD4-team01={{Bandiera|BEL}} [[David Goffin|D Goffin]] 
| RD4-score01-1=4
| RD4-score01-2='''6'''
| RD4-score01-3=3
| RD4-seed02=2
| RD4-team02='''{{Bandiera|DEU}} [[Alexander Zverev|A Zverev]]''' 
| RD4-score02-1='''6'''
| RD4-score02-2=3
| RD4-score02-3='''6'''
}}

== Collegamenti esterni ==
* {{cita web|http://www.protennislive.com/posting/2018/416/mds.pdf|Tabellone principale}}
{{Internazionali d'Italia}}
{{portale|tennis}}

[[Categoria:Internazionali d'Italia 2018]]