2018 Las Vegas Challenger – Singles

Stefan Kozlov was the defending champion but lost in the first round to Kamil Majchrzak.

Singles
2018 Las Vegas Challenger
Champion	Thanasi Kokkinakis
Runner-up	Blaž Rola
Score	6–4, 6–4

Main article: 2018 Las Vegas Challenger

Thanasi Kokkinakis won the title after defeating Blaž Rola 6–4, 6–4 in the final.^[1]

Seeds

1. Lloyd Harris (second round)
2. Adrián Menéndez Maceiras (second round)
3. Casper Ruud (semifinals)
4. Jason Jung (quarterfinals)
5. Noah Rubin (first round)
6. Reilly Opelka (withdrew)
7. Dominik Köpfer (first round)
8. Marcelo Arévalo (second round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Semifinals							Final
		Thanasi Kokkinakis	6	6
	3	Casper Ruud	4	1
									Thanasi Kokkinakis	6	6
									Blaž Rola	4	4
		John-Patrick Smith	3	5
		Blaž Rola	6	7

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	L Harris	6	6
		J Ward	4	4				1	L Harris	4	3
		T Kokkinakis	77	6					T Kokkinakis	6	6
	WC	A Cozbinov	65	1												T Kokkinakis	6	6
	Q	T Paul	6	77												D King	1	4
		K King	1	62				Q	T Paul	4	4
		D King	6	6					D King	6	6
	7	D Köpfer	4	4																			T Kokkinakis	6	6
	3	C Ruud	6	3	6																	3	C Ruud	4	1
		M Krueger	3	6	3			3	C Ruud	6	6
	LL	E King	6	6				LL	E King	3	2
		T Robredo	3	4											3	C Ruud	7	7
		K Majchrzak	6	6												K Majchrzak	5	5
		S Kozlov	0	2					K Majchrzak	2	6	6
		JC Aragone	2	6	63			8	M Arévalo	6	1	4
	8	M Arévalo	6	4	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	LL	J Sels	77	5	4
		J-P Smith	64	7	6				J-P Smith	6	6
	WC	M Torpegaard	4	6	66				C İlkel	3	1
		C İlkel	6	3	78											J-P Smith	77	6
	Alt	J Choinski	3	4											4	J Jung	63	3
	Q	R Ortega Olmedo	6	6				Q	R Ortega Olmedo	4	4
	LL	A Sarkissian	65	4				4	J Jung	6	6
	4	J Jung	77	6																			J-P Smith	3	5
	5	N Rubin	3	6	3																		B Rola	6	7
		B Rola	6	1	6				B Rola	6	6
	Q	T-S Kwiatkowski	6	6				Q	T-S Kwiatkowski	3	4
	WC	Evan Song	4	4												B Rola	6	77
		N Serdarušić	64	4											Q	M Bourgue	4	61
	Q	M Bourgue	77	6				Q	M Bourgue	6	0	6
	WC	J. J. Wolf	3	3				2	A Menéndez Maceiras	4	6	3
	2	A Menéndez Maceiras	6	6