Singles
1998 Chevrolet Cup
Final
Champion	Francisco Clavet
Runner-up	Younes El Aynaoui
Score	6–2, 6–4
Details
Draw	32
Seeds	8
Events
Singles Doubles
← 1997 · Chile Open · 2000 →

Julián Alonso was the defending champion, but lost in the second round this year.

Francisco Clavet won the title, defeating Younes El Aynaoui 6–2, 6–4 in the final.

	Semifinals							Final
		Juan Antonio Marín	2	5
	5	Francisco Clavet	6	7
								5	Francisco Clavet	6	6
									Younes El Aynaoui	2	4
		Younes El Aynaoui	6	6
	2	Félix Mantilla	4	4

	First round							Second round							Quarterfinals							Semifinals
	1	M Ríos	6	1	6
	LL	M Carlsson	2	6	3			1	M Ríos	6	6
		G Cañas	6	3	67				M Rodríguez	2	2
		M Rodríguez	3	6	79										1	M Ríos	4	77	5
		G Pozzi	6	1	3											J A Marín	6	65	7
		J A Marín	3	6	6				J A Marín	6	4	6
	WC	N Massú	3	5				8	F Squillari	4	6	4
	8	F Squillari	6	7																			J A Marín	2	5
	4	G Kuerten	77	4	5																	5	F Clavet	6	7
	Q	L A Morejon	65	6	7			4	G Kuerten	63	3
		N Lapentti	4	6	6				N Lapentti	77	6
		C Costa	6	3	3											N Lapentti	4	4
		J Alonso	5												5	F Clavet	6	6
	LL	J A Viloca	2r						J Alonso	1	69
		R Delgado	4	4				5	F Clavet	6	711
	5	F Clavet	6	6

	First round							Second round							Quarterfinals							Semifinals
	6	M Puerta	2	77	6
		F Vicente	6	62	3			6	M Puerta	6	7
	Q	M Hood	2	6	3				L Arnold Ker	3	5
		L Arnold Ker	6	3	6										6	M Puerta	2	0r
		K Alami	3	4												Y El Aynaoui	6	1
		Y El Aynaoui	6	6					Y El Aynaoui	77	6
		G Blanco	1	3				3	A Berasategui	61	1
	3	A Berasategui	6	6																			Y El Aynaoui	6	6
	7	D Hrbatý	77	6																		2	F Mantilla	4	4
	Q	A Sá	63	4				7	D Hrbatý	65	4
	LL	M Martelli	62	4				WC	J Courier	77	6
	WC	J Courier	77	6											WC	J Courier	6	3	66
		F Meligeni	4	6	1										2	F Mantilla	3	6	78
	Q	E Medica	6	1	6			Q	E Medica	0	1
		M Zabaleta	2	3				2	F Mantilla	6	6
	2	F Mantilla	6	6

• Singles draw