De 24 uur van Daytona 1999 was de 37e editie van deze endurancerace. De race werd verreden op 30 en 31 januari 1999 op de Daytona International Speedway nabij Daytona Beach, Florida.

De race werd gewonnen door de Dyson Racing #20 van Butch Leitzinger, Andy Wallace en Elliott Forbes-Robinson. Voor Leitzinger en Wallace was het hun derde Daytona-zege, terwijl Forbes-Robinson zijn tweede overwinning behaalde. De GT3-klasse werd gewonnen door de Team Seattle/Alex Job Racing #23 van Kelly Collins, Cort Wagner, Anthony Lazzaro en Darryl Havens. De GT2-klasse werd gewonnen door de Roock Racing #83 van André Ahrlé, Raffaele Sangiuolo, David Warnock en Hubert Haupt. De GTT-klasse werd gewonnen door de SK Group Motorsports #19 van Kyle McIntyre, Gary Stewart, Andy Petery, Craig Carter en Les Delano.

Race Winnaars in hun klasse zijn vetgedrukt.

Pos. Klasse No. Team Coureurs Chassis Banden Ronden 1 CA 20 Dyson Racing Butch Leitzinger Andy Wallace Elliott Forbes-Robinson Riley & Scott Mk. III-Ford 708 2 CA 7 Doyle-Risi Racing Allan McNish Didier de Radiguès Max Angelelli Wayne Taylor Ferrari 333 SP 706 3 CA 36 Matthews Racing Max Papis Stefan Johansson Jimmy Vasser Jim Matthews Ferrari 333 SP 694 4 CA 00 Autosport Racing Enzo Calderari Angelo Zadra Lilian Bryner Carl Rosenblad Ferrari 333 SP 679 5 CA 8 Transatlantic Racing Eliseo Salazar Duncan Dayton Henry Camferdam Scott Schubot Riley & Scott Mk. III-Ford 643 6 GT3 23 Team Seattle/Alex Job Racing Kelly Collins Cort Wagner Anthony Lazzaro Darryl Havens Porsche 993 Carrera RSR 639 7 GT2 83 Roock Racing André Ahrlé Raffaele Sangiuolo David Warnock Hubert Haupt Porsche 911 GT2 634 8 CA 72 Doran Racing Didier Theys Fredy Lienhard Arie Luyendyk Mauro Baldi Ferrari 333 SP 632 9 GT3 02 Reiser/Callas Rennsport David Murry Johnny Mowlem Joel Reiser Grady Willingham Porsche 993 Carrera RSR ? 632 10 GT2 99 Schumacher Racing Dirk Müller Martin Snow John O'Steen Larry Schumacher Porsche 911 GT2 626 11 GT3 07 G&W Motorsports Darren Law Steve Marshall Patrick Huisman Sylvain Tremblay Danny Marshall Porsche 911 GT2 Evo 625 12 GT3 18 Millennium Motorsports David Friedman Chris Miller Vic Rice Geoff Auberlen Beran Peter Porsche 911 Carrera RSR 623 13 GT3 17 T. C. Kline Racing Shane Lewis Randy Pobst Bob Mazzuoccola Mark Raccaro BMW M3 E36 622 14 GT3 68 The Racer's Group Kevin Buckler Mike Conte Nick Holt Bruno Lambert Porsche 993 Carrera RSR 617 15 CA 62 Downing/Atlanta Racing Ermano Ronchi Ben Treadway Fabio Montani Dennis Spencer Kudzu DLM-Mazda 611 16 GT3 66 M.A.C. Racing Massimo Morini Angelo Scarpetta Luca Cattaneo Luciano Tamburini Antonio De Castro Porsche 993 Cup ? 605 17 GT3 54 Bell Motorsports Tony Kester Matt Drendel Terry Borcheller Jim Kenton Scott Neuman BMW M3 E36 602 18 GT2 2 Corvette Racing Ron Fellows Chris Kneifel John Paul jr. Chevrolet Corvette C5-R 600 19 GT2 77 Seikel Motorsport Andrew Bagnall Renato Mastropietro Tony Burgess Michel Neugarten Porsche 911 GT2 597 DNF GT2 49 Freisinger Motorsport Michael Irmgratz Manfred Jurasz Eric van der Vyver Klaus Horn Porsche 911 GT2 595 21 CA 95 TRV Motorsport Jeret Schroeder Tom Volk Peter Debban R. J. Valentine Riley & Scott Mk. III-Chevrolet 595 22 CA 16 Dyson Racing James Weaver Rob Dyson Dorsey Schroeder Stu Hayner Riley & Scott Mk. III-Ford 593 23 CA 3 DLW Racing, Inc. Hurley Haywood Don Whittington Dale Whittington Danny Sullivan Riley & Scott Mk. III-Ford 590 24 CA 63 Downing/Atlanta Racing Howard Katz Youjirou Terada Chris Ronson Jim Downing Kudzu DLY-Mazda 586 25 GT2 82 Roock Racing Stéphane Ortelli Enrico Bertaggia Claudia Hürtgen Robert Nearn Porsche 911 GT2 581 26 GT3 44 Specter Werks Sports Jeff Nowicki R. K. Smith Rick Mancuso Tom Murphy Mike Farmer Chevrolet Corvette 578 27 GT3 39 Pumpelly/Mitchum Motorsports Spencer Pumpelly Chris Mitchum David Kicak Bill Lester Pascal Dro Porsche 993 Carrera RSR ? 575 28 GTT 19 SK Group Motorsports Kyle McIntyre Gary Stewart Andy Petery Craig Carter Les Delano Ford Mustang Cobra 550 29 GT3 73 Jack Lewis Enterprises Ltd. Kevin Wheeler Jack Lewis Ludovico Manfredi Kiichi Takahashi Ron Henriksen Porsche 911 Carrera RSR ? 540 30 GT2 75 Pettit Racing Cameron Worth Scott Sansone Steve Pfiefer Ryan Hampton Mazda RX-7 535 31 CA 47 RaceStar Motorsports Todd Vallancourt Ian James John G. Thomas Spice SE90-Chevrolet 528 32 GT3 42 Supertech S. B. Racing Pierangelo Masselli Marco de Iturbe Gianluca de Lorenzi Gianni Biava Franco Scarpini Ferrari F355 517 33 CA 60 Kopf Precision Race Products Kris Wilson Tim Moser Barry Waddell Keiler KII-Ford 510 34 GT2 55 Proton Competition Toni Seiler Gerold Ried Patrick Vuillaume Gerd Ruch Porsche 911 GT2 502 35 GT3 27 Goldin Brothers Racing Keith Goldin Steve Goldin Scott Finlay Dave Russell Mazda RX-7 484 36 GT3 45 Bell Motorsports Peter Baron James McCormick Barry Graham Leo Hindery Brian Till BMW M3 E36 467 37 GT3 89 Broadfoot Racing Neil Crilly Caroline Wright Phillipe Lenain Mike Borkowski Steve Bove Porsche 944 Turbo 465 38 GTT 40 Rankin Racing Hank Scott Toto Lasally C. Peter Pope David Rankin Richard McDill Chevrolet Camaro ? 461 39 GT3 09 Spirit of Daytona Racing Craig Conway Eric van Cleef Todd Flis Mitsubishi Eclipse ? 455 DNF GT2 33 Konrad Motorsport Altfrid Heger Peter Kitchak Charles Slater Franz Konrad Porsche 911 GT2 452 41 GTT 79 Maugeri Motorsports Richard Maugeri Anthony Puleo Sim Penton Doug Mills Ronald Zitza Chevrolet Camaro ? 418 DNF CA 28 Intersport Racing Jon Field Ryan Jones Sam Hornish jr. Michael Shank Lola B98/10-Ford 399 43 GT2 03 NP Racing Bret Parker Kevin Allen Neil Hanneman Larry Parker Dodge Viper GTS-R 390 DNF GT2 48 Freisinger Motorsport Wolfgang Kaufmann Michel Ligonnet Lance Stewart Porsche 911 GT2 386 DNF GT3 56 Manthey Racing Hans Willems Olaf Manthey Marc Gindorf Ulrich Gallade Ulli Richter Porsche 993 Carrera RSR ? 377 46 GT2 4 Corvette Racing Scott Sharp Andy Pilgrim John Heinricy Chevrolet Corvette C5-R 366 DNF CA 15 Hybrid Racing Ross Bentley Chris Bingham Didier André Franck Fréon Riley & Scott Mk. III-Ford 349 DNF GT3 04 Schmidt Motorsports Max Schmidt Rusty Schmidt Jeff Conkel Scott Harrington Porsche 993 Carrera RSR ? 343 49 GT3 57 Kryderacing Reed Kryder Christian Heinkélé Steve Ahlgrim Nissan 240SX 341 50 GTT 53 Diablo Racing Tom Scheuren Mayo T. Smith John McNaughton John Halbing III Bobby Jones Chevrolet Camaro 340 DNF GT3 22 Team Seattle/Alex Job Racing Don Kitch jr. Kim Wolfkill John Hill Wade Gaughran Porsche 993 Carrera RSR 327 DNF GT3 76 Team A.R.E. Peter Argetsinger Richard Polidori Steve Hill John McCaig Porsche 993 Carrera RSR 326 DNF GT3 24 Michael Jacobs Michael Jacobs George Biskup John Steinmetz Michael DeFontes Frank Del Vecchio Ferrari 348 326 DNF GT3 67 The Racer's Group Steve Pelke Brian Pelke Ron Herrerias Pat DiGiovanni Porsche 911 Carrera RSR 312 DNF CA 74 Robinson Racing George Robinson Jack Baldwin Irv Hoerr Jon Gooding Riley & Scott Mk. III-Chevrolet 299 DNF GT2 81 Chamberlain Engineering Chris Gleason Christian Gläsel Brian Hornkohl Hans Hugenholtz jr. Dodge Viper GTS-R 297 57 GTT 96 Entropy Racing Gerry Green Scott Brunk Rich Bell Keith Fisher Tony Tola Chevrolet Camaro 273 DNF GTT 87 John Annis John Annis John Kohler Bill Ladoniczki Steve Ladoniczki Mark Kennedy Chevrolet Camaro ? 263 DNF GT2 52 Easton Properties Corp. Paul Arnold William Stitt Victor Sifton Simon Gregg Acura NSX 261 DNF GT3 6 Prototype Technology Group, Inc. Dieter Quester Boris Said Peter Cunningham Mark Simo Ernie Irvan BMW M3 E36 247 DNF GT2 70 Marcos Racing Cor Euser Herman Buurman Peter van der Kolk Christian Vann Marcos LM600 242 DNF GT3 10 Prototype Technology Group, Inc. Bill Auberlen Brian Cunningham Johannes van Overbeek Hans-Joachim Stuck BMW M3 E36 238 DNF CA 29 Intersport Racing Sam Brown Butch Brickell Jacek Mucha John Mirro Riley & Scott Mk. III-Ford 225 DNF CA 12 Genesis Racing Chuck Goldsborough Kurt Baumann Jeff Altenburg Rick Fairbanks Anthony Cafik Hawk MD3R-Chevrolet ? 225 DNF GT2 50 Viper Team Oreca Olivier Beretta Tommy Archer David Donohue Dodge Viper GTS-R 188 DNF CA 88 Dollahite Racing Mike Davies Bill Dollahite Doc Bundy Paul Dallenbach Ferrari 333 SP 168 DNF GTT 13 DM Motorsports Mark Montgomery Martin Shuster Bruce Trenery Spencer Trenery Dick Greer Chevrolet Camaro ? 167 DNF GT2 21 Haberthur Racing Gabrio Rosa Fabio Rosa Roberto Mangifesta Stefano Zonca Porsche 911 GT2 128 DNF CA 78 SBF Racing Patrice Roussel Edouard Sezionale Sylvain Boulay Norma M14-Buick ? 128 DNF GT2 08 G&W Motorsports Rob Wilson Martyn Konig Jake Ulrich Michael Pickup Porsche 911 GT2 89 DNF CA 32 Konrad Motorsport Jan Lammers Franz Konrad Vincenzo Sospiri Lola B98/10-Lotus 43 DNF GT3 58 Petersen Racing Angelo Cilli John Ruther Tommy Miller Dale White Michael Petersen Porsche 993 Carrera RSR 22 DNF GT3 25 RWS-Brun Motorsport Hans-Jörg Hofer Luca Riccitelli Günter Blieninger Fabio Mancini Porsche 993 Carrera RSR 14 DNF GT3 92 Reiser/Callas Rennsport Johnny Mowlem Joel Reiser Grady Willingham David Murry Porsche 993 Carrera RSR ? 11 DNF GT2 31 Haberthur Racing Mauro Casadei Francesco Ciani Stefano Bucci Andrea Garbagnati Porsche 911 GT2 9 DNF GT3 69 Perspective Racing Bob Wollek Thierry Perrier Jean-Louis Ricci Gérard Larrousse Jean-Paul Richard Porsche 993 Carrera RSR 7 DNF GT3 01 Greycliff Racing James Nelson John Drew Beran Peter Jim Michaelian Mark Greenberg Porsche 993 Carrera RSR ? 3 DNF GT3 93 Saeta Airlines Racing Henry Taleb Jean-Pierre Michelet Marcelo Darquea Walter Jimenez Nissan 240SX 0

1999 Daytona