Singles
1998 Grand Prix de Tennis de Lyon
Champion	Àlex Corretja
Runner-up	Tommy Haas
Score	2–6, 7–6(8–6), 6–1

Fabrice Santoro was the defending champion, but lost in the second round this year.

Àlex Corretja won the tournament, beating Tommy Haas 2–6, 7–6^(8–6), 6–1 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Tommy Haas	6	1
	3	Marcelo Ríos	2	0r
									Tommy Haas	6	66	1
								4	Àlex Corretja	2	78	6
	4	Àlex Corretja	6	6
		Wayne Ferreira	3	2

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	P Sampras	6	1	6
		T Martin	4	6	4			1	P Sampras	6	6
		T Woodbridge	6	64	77				T Woodbridge	2	4
		J Van Herck	4	77	60										1	P Sampras
		A Clément	2	79	4											T Haas	w/o
		T Haas	6	67	6				T Haas	2	6	7
	Q	S Huet	3	3				8	F Santoro	6	3	5
	8	F Santoro	6	6																			T Haas	6	1
	3	M Ríos	6	6																		3	M Ríos	2	0r
		J Tarango	3	3				3	M Ríos	6	6
		JA Marín	0	4					N Escudé	2	3
		N Escudé	6	6											3	M Ríos	6	6
		V Spadea	65	77	2										WC	A Di Pasquale	4	0
	Q	R Reneberg	77	64	6			Q	R Reneberg	5	4
	WC	A Di Pasquale	7	6				WC	A Di Pasquale	7	6
	WC/6	A Costa	5	3

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	J Siemerink	6	4	4
		G Pozzi	2	6	6				G Pozzi	6	0	4
		J Alonso	3	1				Q	O Delaître	1	6	6
	Q	O Delaître	6	6											Q	O Delaître	62	5
		A Pavel	6	6											4	À Corretja	77	7
	WC	L Roux	3	1					A Pavel	4	6	3
		J Golmard	64	2				4	À Corretja	6	2	6
	4	À Corretja	77	6																		4	À Corretja	6	6
	7	C Pioline	64	6	6																		W Ferreira	3	2
		S Grosjean	77	4	1			7	C Pioline	63	2
	Q	D Sapsford	2	6	4				W Ferreira	77	6
		W Ferreira	6	3	6											W Ferreira	6	6
		M Rosset	65	5											2	P Rafter	4	1
		H Arazi	77	7					H Arazi	3	3
		S Campbell	2	2				2	P Rafter	6	6
	2	P Rafter	6	6

References

• Main Draw