Singles
2018 Chennai Open Challenger
Champion	Jordan Thompson
Runner-up	Yuki Bhambri
Score	7–5, 3–6, 7–5

This was the first edition of the tournament.

Jordan Thompson won the title after defeating Yuki Bhambri 7–5, 3–6, 7–5 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Jordan Thompson	6	77
		Pedro Martínez	1	65
								1	Jordan Thompson	7	3	7
								2	Yuki Bhambri	5	6	5
	3	Lee Duck-hee	5	2
	2	Yuki Bhambri	7	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	J Thompson	6	6
		K-M Maamoun	4	2				1	J Thompson	6	6
		S Balaji	4	6	5			Q	W Trongcharoenchaikul	3	2
	Q	W Trongcharoenchaikul	6	3	7										1	J Thompson	6	3
	WC	Manish Sureshkumar	4	2												D Petrović	4	0r
		D Petrović	6	6					D Petrović	6	0
		K Coppejans	5	4				7	E López Pérez	4	0r
	7	E López Pérez	7	6																		1	J Thompson	6	77
	4	M Safwat	6	6																			P Martínez	1	65
		A Bega	4	3				4	M Safwat	6	6
	Q	A Kadhe	65	6	6			Q	A Kadhe	4	2
	PR	S Myneni	77	3	4										4	M Safwat	5	2
		L Catarina	6	6												P Martínez	7	6
	WC	Nitin Kumar Sinha	3	4					L Catarina	62	0
		P Martínez	6	6					P Martínez	77	6
	8	P Gunneswaran	1	4

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	S Nagal	3	3
		A Escoffier	6	6					A Escoffier	77	6
		S Mukund	3	2					G Granollers	62	2
		G Granollers	6	6												A Escoffier	2	6	3
		I Nedelko	6	4r											3	D-h Lee	6	3	6
	Q	Abhinav Sanjeev Shanmugam	3	5				Q	AS Shanmugam	2	4
	WC	VS Prashanth	3	4				3	D-h Lee	6	6
	3	D-h Lee	6	6																		3	D-h Lee	5	2
	6	Y Uchiyama	6	77																		2	Y Bhambri	7	6
		M Purcell	1	65				6	Y Uchiyama	6	7
		C İlkel	4	78	6				C İlkel	4	5
		D Popko	6	66	2										6	Y Uchiyama	7	2	4
	WC	Dhakshineswar Suresh	2	0											2	Y Bhambri	5	6	6
	Q	Sidharth Rawat	6	6				Q	S Rawat	2	3
		B Zapata Miralles	1	63				2	Y Bhambri	6	6
	2	Y Bhambri	6	77

References

• Main Draw
• Qualifying Draw