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
Final score	7–5, 4–6, 7–6^(7–2)

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

Finals

	Semifinals							Final
		Nikola Milojević	3	4
	8	Reilly Opelka	6	6
								8	Reilly Opelka	7	4	7^7
									Bjorn Fratangelo	5	6	6^2
		Christopher Eubanks	6^4	4
		Bjorn Fratangelo	7^7	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	6^4	4					B Rola	6	6
		B Rola	7^7	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	7^7	6											8	R Opelka	w/o
		M Arévalo	6^5	4				Q	Mi Redlicki	6^10	6^6
	Q	E Gómez	2	3				8	R Opelka	7^12	7^8
	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	6^3	6				C Eubanks	6	6
	WC	JJ Wolf	5	7^7	4											C Eubanks	4
	WC	Preston Touliatos	3	2												E Karlovskiy	1^r
		E Karlovskiy	6	6					E Karlovskiy	5	6	6
		JC Aragone	2	6^7				3	B Klahn	7	4	4
	3	B Klahn	6	7^9																			C Eubanks	6^4	4
	5	T Smyczek	3	6	6																		B Fratangelo	7^7	6
		J-P Smith	6	3	2			5	T Smyczek	6	7^7
		D Köpfer	6	2	6				D Köpfer	4	6^4
	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	7^7	6^4	6
		T Kamke	6	3	6				T Kamke	6^4	7^7	4
	2	M Granollers	4	6	4

References

• Main Draw
• Qualifying Draw