Singles
1999 Open 13
Final
Champion	Fabrice Santoro
Runner-up	Arnaud Clément
Score	6–3, 4–6, 6–4
Details
Draw	32 (4 Q / 3 WC )
Seeds	8
Events
Singles Doubles
← 1998 · Open 13 · 2000 →

Fabrice Santoro defeated Arnaud Clément 6–3, 4–6, 6–4 to win the 1999 Open 13 singles competition. Thomas Enqvist was the champion but did not defend his title.

	Semifinals							Final
	WC	Arnaud Clément	6	6
	3	Cédric Pioline	4	1
								WC	Arnaud Clément	3	6	4
									Fabrice Santoro	6	4	6
	4	Marc Rosset	4	4
		Fabrice Santoro	6	6

	First round							Second round							Quarterfinals							Semifinals
	1	C Moyà	61	6	3
	WC	R Federer	77	3	6			WC	R Federer	66	77	77
		A Voinea	2	2					J Golmard	78	65	65
		J Golmard	6	6											WC	R Federer	3	3
	WC	A Clément	6	6											WC	A Clément	6	6
		F Vicente	3	1				WC	A Clément	6	6
	Q	J Boutter	6	77				Q	J Boutter	2	3
	8	M Safin	4	62																		WC	A Clément	6	6
	3	C Pioline	6	6																		3	C Pioline	4	1
		J Tarango	4	2				3	C Pioline	7	7
	Q	F Jonsson	65	63					A Medvedev	5	5
		A Medvedev	77	77											3	C Pioline	79	77
		A Pavel	6	7											6	N Escudé	67	65
		G Blanco	4	5					A Pavel	6	62	5
		K Alami	1	77	62			6	N Escudé	0	77	7
	6	N Escudé	6	62	77

	First round							Second round							Quarterfinals							Semifinals
	5	M Gustafsson	3	4
		G Raoux	6	6					G Raoux	6	4	4
		G Pozzi	7	6					G Pozzi	4	6	6
		L Roux	5	0												G Pozzi	2	1
		D Prinosil	64	6	3										4	M Rosset	6	6
		K Carlsen	77	4	6				K Carlsen	3	2
	Q	C Saulnier	2	6	1			4	M Rosset	6	6
	4	M Rosset	6	3	6																	4	M Rosset	4	4
	7	D Vacek	2	3																			F Santoro	6	6
		F Santoro	6	6					F Santoro	6	6
		J Gimelstob	6	1	4				A di Pasquale	1	3
		A di Pasquale	4	6	6											F Santoro	6	6
		J A Marín	2	1											Q	D Hrbatý	4	3
	Q	D Hrbatý	6	6				Q	D Hrbatý	64	6	6
		S Schalken	3	2				WC/2	Y Kafelnikov	77	4	2
	WC/2	Y Kafelnikov	6	6

• 1999 Open 13 Singles draw
• 1999 Open 13 Qualifying draw