2018 Knoxville Challenger – Singles

Filip Peliwo was the defending champion but chose not to defend his title.

Singles
2018 Knoxville Challenger
Champion	Reilly Opelka
Runner-up	Bjorn Fratangelo
Score	7–5, 4–6, 7–6(7–2)

Main article: 2018 Knoxville Challenger

Reilly Opelka won the title after defeating Bjorn Fratangelo 7–5, 4–6, 7–6^(7–2) in the final.

Seeds

1. Tennys Sandgren (second round)
2. Marcel Granollers (first round)
3. Bradley Klahn (second round)
4. Michael Mmoh (quarterfinals, withdrew)
5. Tim Smyczek (quarterfinals)
6. Jason Jung (second round)
7. Peter Polansky (second round)
8. Reilly Opelka (champion)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Semifinals							Final
		Nikola Milojević	3	4
	8	Reilly Opelka	6	6
								8	Reilly Opelka	7	4	77
									Bjorn Fratangelo	5	6	62
		Christopher Eubanks	64	4
		Bjorn Fratangelo	77	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1/WC	T Sandgren	6	6
		H Laaksonen	3	0				1/WC	T Sandgren	4	4
		R Quiroz	64	4					B Rola	6	6
		B Rola	77	6												B Rola	4	2
		N Serdarušić	2	4												N Milojević	6	6
		N Milojević	6	6					N Milojević	6	6
	WC	Timo Stodder	1	3				6	J Jung	0	4
	6	J Jung	6	6																			N Milojević	3	4
	4	M Mmoh	6	6																		8	R Opelka	6	6
	Q	Evan Song	2	3				4	M Mmoh	6	6
	Q	M Ymer	6	6				Q	M Ymer	3	2
		K Majchrzak	4	4											4	M Mmoh
	Q	Mi Redlicki	77	6											8	R Opelka	w/o
		M Arévalo	65	4				Q	Mi Redlicki	610	66
	Q	E Gómez	2	3				8	R Opelka	712	78
	8	R Opelka	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	P Polansky	6	6
	Alt	C Harrison	2	2				7	P Polansky	3	4
		C Eubanks	7	63	6				C Eubanks	6	6
	WC	J. J. Wolf	5	77	4											C Eubanks	4
	WC	Preston Touliatos	3	2												E Karlovskiy	1r
		E Karlovskiy	6	6					E Karlovskiy	5	6	6
		JC Aragone	2	67				3	B Klahn	7	4	4
	3	B Klahn	6	79																			C Eubanks	64	4
	5	T Smyczek	3	6	6																		B Fratangelo	77	6
		J-P Smith	6	3	2			5	T Smyczek	6	77
		D Köpfer	6	2	6				D Köpfer	4	64
	Alt	M Krueger	1	6	2										5	T Smyczek	2	1
	SE	T Paul	4	4												B Fratangelo	6	6
		B Fratangelo	6	6					B Fratangelo	77	64	6
		T Kamke	6	3	6				T Kamke	64	77	4
	2	M Granollers	4	6	4

References

• Main Draw
• Qualifying Draw