| 1998 WERA National Challenge |
| Grattan | 7/12/98 |
| 1100 Superstock |
| 1 | 57 | Mark C. Junge - Barrington, IL - Suzuki 1000 - Sponsors: Vesrah, Marshall Dist, Sudco, Factory, Airtech, |
| Graves, Bor Motorsport |
| 2 | 36 | Mark McDaniel - Santa Rosa, CA - Suzuki GSXR 750 - Sponsors: Arclight Racing, Metzeler, EBC, Dainese, M-4 |
| Exhausts |
| 3 | 151 | Greg Leffler - Laurel, MD - Suzuki GSXR 750 - Sponsors: JAR Racing, Factory, Sharkskinz, Vortex, Syed, EBC, Dyno |
| Jet |
| 4 | 86 | Steve Steinman - Gobles, MI - Kawasaki 600 - Sponsors: San Burst Tanning, Life Cycle Kalamazoo, R&R Fab, |
| S&B Motorsports |
| 5 | 5 | Luke C. Yarbrough - Winston-Salem, NC - Suz 1000 - Sponsors: 360 Communications, Metzeler, Arai, |
| Silkolene, EBC, HJC Leathers, D&D Factory, Maier, RK, JMK, Trackside, Lee's Performance, Penske |
| Lockhart/Phillips, Tapeworks, Tupelo Power Sports, Don's BP |
| 6 | 85 | Jamie R. Lane - Tupelo, MS - Suzuki GSXR 750 - Sponsors: Tupelo Powersports, Metzeler, TKO Racing, D & D, EBC, |
| Don's BP |
| 98 | 541 | Richard V. Pacella - Charlotte, NC - Suzuki GSXR 750 - Sponsors: Lee's Performance, ITC, CM, Quicktime, FM |
| Racing |
| 99 | 71 | Curry Justice - Amory, MS - Suzuki GSXR 750 - Sponsors: Bell's Suzuki, Dunlop, Cycle Tech, Yosh, Wer, Silkolene, |
| Fox WFO Racing |
| 99 | 65 | Scott Carpenter - Raleigh, NC - Yamaha R1 - Sponsors: Reward Yamaha, Metzeler, Tapewworks, EBC, |
| Sharkskinz, Factory, Pro-Tek |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| 125cc GP |
| 1 | 1 | Michael S. Himmelsbach - Quakertown, PA - Honda 125 - Sponsors: Blackmans Cycle, Team Himmelsbach |
| Racing, Bell Helmets, Michelin Tires Apex Manufacturing, Silkolene Lubricants, EBC Brakes, Beasley Fiber |
| glass, Tsubaki Chain Co., Morgan Racing Exhaust, Rising Sun Cycles |
| 2 | 130 | John Hjelm - Morrison, CO - Honda 125 - Sponsors: Clearvision Laser Centers, Auburn Tool, Bloodnickle Ind. |
| 3 | 97 | Chris Pyles - Bethesda, MD - Honda 125 - Sponsors: Team Himmelsbach, Michelin, EBC, Barnett, Bell, |
| Silkolene, Beasley, CAD, Lockhart/Phillips |
| 4 | 12 | Doug Scronce - St. Louis, MO - Honda 125 - Sponsors: D & K Motorsports, Mongenast Motorsports, Motul, |
| Lockhart/Phillips |
| 5 | 901 | Mike Mashewske - Dundee, NY - Honda 125 - Sponsors: Applied Business Systems, Dad, Graiglane Racing, |
| IM Lethers |
| 6 | 13 | Larry Cohee - Burt, MI - Yamaha 125 - Sponsors: Wohlfeil Yamaha, L.R.E. |
| 7 | 81 | Paul Hoyt Nelson - Wellington, OH - Honda 125 - Sponsors: M & N Racing, Micro Coat, Michelin, Max Power |
| Cylinder, VP |
| 8 | 91 | Andy Birko - Warren, MI - Honda 125 - Sponsors: Klotz, MTA |
| 9 | 401 | Jason DiSalvo - Stafford, NY - Honda 125 - Sponsors: Applied Business Syst, Craig Lane Racing, IM Leathers |
| 10 | 474 | Dan Clemens - Naperville, IL - Honda 125 - Sponsors: Wife |
| 11 | 698 | Anna Garrison - Tamassee, SC - Honda 125 - Sponsors: Dunlop, Garrison Goose Farm |
| 12 | 89 | Jeff Johnston - Exton, PA - Yamaha 125 - Sponsors: Wolilfeic Yamaha,Teknic, Walt Schafer, Silkolene |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| 600 Production |
| 1 | 9 | Frederick Farzanegan - Raleigh, NC - Honda 600 - Sponsors: Metzeler, Pirelli, Silkoline, Elf, LP, Vortex, |
| Reward Cycle, Gina Miller, EBC |
| 2 | 316 | John R. Patterson - Greenwood, IN - Suzuki GSXR 600 - Sponsors: Sherryl, Bell's Suzuki, Cycle Outfitters, EBC |
| Bakes |
| 3 | 116 | Amy Pentkowski - Midland, MI - Honda 600 - Sponsors: Macomb Collision |
| 4 | 609 | Mitchell Richardson - Pikeville, TN - Kaw 600 - Sponsors: Pirelli, EBC, I.B.E.W. |
| 5 | 222 | Brian James Honeycutt - Clemmons, NC - Hon 600 - Sponsors: Performance Cycle, EBC, Pirelli, Silkolene, |
| Vortex, Elf, Scott Jones, |
| 6 | 328 | Francis Horvath - Lansing, MI - Honda 600 - Sponsors: Nightwatch Production, College Bike |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| 600 Superbike |
| 1 | 103 | Michael Rop - Belding, MI - Honda 600 - Sponsors: Carstar, Honda Village |
| 3 | 101 | Vincent Romano - Skokie, IL - Suzuki GSXR 600 - Sponsors: Mystic Oil |
| 4 | 919 | Frank Wiot - Gaithersburg, MD - Honda 600 - Sponsors: CAD Racing, Cycle Accessory Discounters |
| 5 | 609 | Mitchell Richardson - Pikeville, TN - Kaw 600 - Sponsors: Pirelli, EBC, I.B.E.W. |
| 6 | 222 | Brian James Honeycutt - Clemmons, NC - Kaw 600 - Sponsors: Performance Cycle, EBC, Pirelli, |
| Silkolene, Vortex, Elf, Scott Jones, |
| 7 | 116 | Amy Pentkowski - Midland, MI - Honda 600 - Sponsors: Macomb Collision |
| 8 | 328 | Francis Horvath - Lansing, MI - Honda 600 - Sponsors: Nightwatch Production, College Bike |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| 600 Superstock |
| 1 | 360 | Larry Denning - Olathe, KS - Kawasaki 600 - Sponsors: 4&6, EBC, Silkolene, Hindle, Sharkskinz, ProTek |
| 2 | 57 | Mark C. Junge - Barrington, IL - Suzuki GSXR 600 - Sponsors: Vesrah, Marshall Dist, Sudco, Factory, Airtech, Graves, |
| Bor Motorsport |
| 3 | 11 | Joshua Kurt Hayes - Gulfport, MS - Suzuki GSXR 600 - Sponsors: Valvoline, EMGO, Suzuki, Michelin, Dynojet, SBS, |
| Kerker, Pilot USA Fox, Tsubaki, ProTek, Air Tech, Graves, RES, Street & Comp. Lindermann |
| Lockhart-Phillips, Arai, GMD Computrack, www.pleasers.com/Josh Hayes |
| 4 | 180 | David Joseph Rose - Bel Air, MD - Suzuki GSXR 600 - Sponsors: JAR, Gauldings, DP Brakes, Sharkskinz, Vortex, |
| Dunlop, Dynojet, GMD Computrack |
| 5 | 86 | Steve Steinman - Gobles, MI - Kawasaki 600 - Sponsors: San Burst Tanning, Life Cycle Kalamazoo, R&R Fab, |
| S&B Motorsports |
| 6 | 24 | Brian Lantz - Kennesaw, GA - Kawasaki 600 - Sponsors: Kawasaki of Canton, Dunlop, Arai, Vesrah, Air-tech, |
| S&E, Factory, M-4, Traxxon Dynamics |
| 7 | 35 | Ty Howard - Haslet, TX - Suzuki GSXR 600 - Sponsors: 1 800 Crotch Rocket |
| 8 | 137 | Zachary Todd Baldridge - Lynchburg, VA - Suz 600 - Sponsors: Dunlop, EBC, Bell's Suzuki, Silklone, SMC, |
| River Ridge Auto Center, Sharkslinz, Yoshimra. |
| 9 | 61 | Scott Brown - Gallatin, TN - Suzuki GSXR 600 - Sponsors: Dunlop, Factory, Motul, Graves, Vortex, Cycle Tech Eng. |
| Bell's Suzuki Dunlopads |
| 10 | 66 | Christian LeClair - Ballwin, MO - Suzuki GSXR 600 - Sponsors: CR Signs, Metzeler, EBC, Dynojet, RaceTech, |
| Sharkskinz, Bell, Silkolene, Suzuki |
| 11 | 105 | Eric Konigsberg - Kalamazzo, MI - Honda 600 - Sponsors: Lovers Lane, Apparel Inmontion, Billards |
| Playground |
| 98 | 58 | Joseph Temperato - Toronto, ON - Suzuki GSXR 600 - Sponsors: Pro 6 Cycle, Zinc, Svcre, Alps Auto Repair, Vortex |
| Sprockets, Dunlop |
| 98 | 27 | Scotty Van Scoik - Warsaw, TN - Suzuki GSXR 600 - Sponsors: Firehawk Motorsports |
| 98 | 14 | Brian Stokes - Douglasville, GA - Suzuki GSXR 600 - Sponsors: Team Suzuki Sport, Metzeler, Motion Systems, M-4, |
| Bieffe, EBC, Factory Alpine Stars, Fox Shocks, Tsubaki, Sharkskinz, Sprocket Specialists, Speed Labs, |
| Gustafsson, Asphalt and Gas, Freewheeling, GMD Computrack |
| 99 | 13 | Scott "Root" Martin - Gulf Breeze, FL - Suzuki GSXR 600 - Sponsors: Dick Hood Racing, Hardware House |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| 750 Production |
| 1 | 9 | Frederick Farzanegan - Raleigh, NC - Honda 600 - Sponsors: Metzeler, Pirelli, Silkoline, Elf, LP, Vortex, |
| Reward Cycle, Gina Miller, EBC |
| 2 | 316 | John R. Patterson - Greenwood, IN - Suzuki GSXR 600 - Sponsors: Sherryl, Bell's Suzuki, Cycle Outfitters, EBC |
| Bakes |
| 3 | 222 | Brian James Honeycutt - Clemmons, NC - Hon 600 - Sponsors: Performance Cycle, EBC, Pirelli, Silkolene, |
| Vortex, Elf, Scott Jones, |
| 4 | 609 | Mitchell Richardson - Pikeville, TN - Kaw 600 - Sponsors: Pirelli, EBC, I.B.E.W. |
| 5 | 864 | Cary Lurie - Gulfport, MS - Suzuki 1000 - Sponsors: Suzuki City of Biloxi |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| 750 Superbike |
| 1 | 75 | Thomas H. Jenson - Oxford, MI - Suzuki GSXR 750 - Sponsors: Mom & Dad, Are 21 Motorsports |
| 3 | 919 | Frank Wiot - Gaithersburg, MD - Honda 600 - Sponsors: CAD Racing, Cycle Accessory Discounters |
| 4 | 116 | Amy Pentkowski - Midland, MI - Honda 600 - Sponsors: Macomb Collision |
| 5 | 16 | Charles T. Allen - Georgetown, KY - Suzuki GSXR 750 - Sponsors: Allen Land Surveying, Oil & Lube Express, Pirelli, |
| Sharkskinz |
| 6 | 207 | Troy Voorhies - Junction City, KY - Suzuki GSXR 750 - Sponsors: Bells Suzuki, B&B leathers, Troyboys Powder |
| Coating, Pirelli |
| 98 | 9 | Frederick Farzanegan - Raleigh, NC - Honda 600 - Sponsors: Metzeler, Pirelli, Silkoline, Elf, LP, Vortex, |
| Reward Cycle, Gina Miller, EBC |
| 98 | 101 | Vincent Romano - Skokie, IL - Suzuki GSXR 750 - Sponsors: Mystic Oil |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| 750 Superstock |
| 1 | 36 | Mark McDaniel - Santa Rosa, CA - Suzuki GSXR 750 - Sponsors: Arclight Racing, Metzeler, EBC, Dainese, M-4 |
| Exhausts |
| 2 | 21 | Brian J. Gibson - Grand Haven, MI - Suzuki GSXR 750 - Sponsors: Dega Racing, Lake Sore Partners, Dunlop, EBC, |
| LP, Syed |
| 3 | 151 | Greg Leffler - Laurel, MD - Suzuki GSXR 750 - Sponsors: JAR Racing, Factory, Sharkskinz, Vortex, Syed, EBC, Dyno |
| Jet |
| 4 | 11 | Joshua Kurt Hayes - Gulfport, MS - Suzuki GSXR 750 - Sponsors: Valvoline, EMGO, Suzuki, Michelin, Dynojet, SBS, |
| Kerker, Pilot USA Fox, Tsubaki, ProTek, Air Tech, Graves, RES, Street & Comp. Lindermann |
| Lockhart-Phillips, Arai, GMD Computrack, www.pleasers.com/Josh Hayes |
| 5 | 61 | Scott Brown - Gallatin, TN - Suzuki GSXR 750 - Sponsors: Dunlop, Factory, Motul, Graves, Vortex, Cycle Tech Eng. |
| Bell's Suzuki Dunlopads |
| 6 | 86 | Steve Steinman - Gobles, MI - Kawasaki 600 - Sponsors: San Burst Tanning, Life Cycle Kalamazoo, R&R Fab, |
| S&B Motorsports |
| 7 | 71 | Curry Justice - Amory, MS - Suzuki GSXR 750 - Sponsors: Bell's Suzuki, Dunlop, Cycle Tech, Yosh, Wer, Silkolene, |
| Fox WFO Racing |
| 8 | 541 | Richard V. Pacella - Charlotte, NC - Suzuki GSXR 750 - Sponsors: Lee's Performance, ITC, CM, Quicktime, FM |
| Racing |
| 9 | 85 | Jamie R. Lane - Tupelo, MS - Suzuki GSXR 750 - Sponsors: Tupelo Powersports, Metzeler, TKO Racing, D & D, EBC, |
| Don's BP |
| 98 | 57 | Mark C. Junge - Barrington, IL - Suzuki GSXR 750 - Sponsors: Vesrah, Marshall Dist, Sudco, Factory, Airtech, Graves, |
| Bor Motorsport |
| 98 | 66 | Christian LeClair - Ballwin, MO - Suzuki GSXR 600 - Sponsors: CR Signs, Metzeler, EBC, Dynojet, RaceTech, |
| Sharkskinz, Bell, Silkolene, Suzuki |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| Formula 1 |
| 1 | 85 | Jeffrey S. Vos - Holland, MI - Kawasaki 750 - Sponsors: Bridgestone, EBC, RK, Boeve Oil Co, RSR |
| 2 | 84 | Lee Acree - Jamestown, NC - Honda 250 - Sponsors: Team Triad, Tri-City Honda, Interior Motives, Sherman |
| Motorsports, Tapeworks, EBC, Sharkskinz, Silkolene, Lockhart Phillips, Tsubaki |
| 3 | 36 | Mark McDaniel - Santa Rosa, CA - Suzuki GSXR 750 - Sponsors: Arclight Racing, Metzeler, EBC, Dainese, M-4 |
| Exhausts |
| 4 | 21 | Brian J. Gibson - Grand Haven, MI - TZ 250 - Sponsors: Dega Racing, Lake Sore Partners, Dunlop, EBC, |
| LP, Syed |
| 5 | 22 | Stacey Young - Kalamazoo, MI - Kawasaki 750 - Sponsors: Dunlop, Ferodo, Factory, Maxima, Hindle, Area 21 |
| 6 | 61 | Scott Brown - Gallatin, TN - Suzuki GSXR 750 - Sponsors: Dunlop, Factory, Motul, Graves, Vortex, Cycle Tech Eng. |
| Bell's Suzuki Dunlopads |
| 7 | 80 | David J. Boosales - Burlington, NC - Honda 250 - Sponsors: Tri-City Honda, Team Triad, Tapeworksm |
| Sharkskinz, Silkolene, Lockhart Phillips, Tsubaki, EBC, Interior Motives |
| 99 | 105 | Eric Konigsberg - Kalamazzo, MI - Honda 600 - Sponsors: Lovers Lane, Apparel Inmontion, Billards |
| Playground |
| 99 | 86 | Steve Steinman - Gobles, MI - Kawasaki 600 - Sponsors: San Burst Tanning, Life Cycle Kalamazoo, R&R Fab, |
| S&B Motorsports |
| 99 | 65 | Scott Carpenter - Raleigh, NC - Yamaha R1 - Sponsors: Reward Yamaha, Metzeler, Tapewworks, EBC, |
| Sharkskinz, Factory, Pro-Tek |
| 99 | 1 | Michael S. Himmelsbach - Quakertown, PA - Yamaha 250 - Sponsors: Blackmans Cycle, Team Himmelsbach |
| Racing, Bell Helmets, Michelin Tires Apex Manufacturing, Silkolene Lubricants, EBC Brakes, Beasley Fiber |
| glass, Tsubaki Chain Co., Morgan Racing Exhaust, Rising Sun Cycles |
| 99 | 541 | Richard V. Pacella - Charlotte, NC - Suzuki GSXR 750 - Sponsors: Lee's Performance, ITC, CM, Quicktime, FM |
| Racing |
| 99 | 35 | Ty Howard - Haslet, TX - Yamaha R1 - Sponsors: 1 800 Crotch Rocket |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| Formula 2 |
| 1 | 85 | Jeffrey S. Vos - Holland, MI - Honda 250 - Sponsors: Bridgestone, EBC, RK, Boeve Oil Co, RSR |
| 2 | 84 | Lee Acree - Jamestown, NC - Honda 250 - Sponsors: Team Triad, Tri-City Honda, Interior Motives, Sherman |
| Motorsports, Tapeworks, EBC, Sharkskinz, Silkolene, Lockhart Phillips, Tsubaki |
| 3 | 58 | Joseph Temperato - Toronto, ON - Suzuki GSXR 600 - Sponsors: Pro 6 Cycle, Zinc, Svcre, Alps Auto Repair, Vortex |
| Sprockets, Dunlop |
| 4 | 61 | Scott Brown - Gallatin, TN - Suzuki GSXR 600 - Sponsors: Dunlop, Factory, Motul, Graves, Vortex, Cycle Tech Eng. |
| Bell's Suzuki Dunlopads |
| 5 | 180 | David Joseph Rose - Bel Air, MD - Suzuki GSXR 600 - Sponsors: JAR, Gauldings, DP Brakes, Sharkskinz, Vortex, |
| Dunlop, Dynojet, GMD Computrack |
| 6 | 1 | Brian Lantz - Kennesaw, GA - Suzuki GSXR 600 - Sponsors: Kawasaki of Canton, Dunlop, Arai, Vesrah, Air-tech, |
| S&E, Factory, M-4, Traxxon Dynamics |
| 7 | 80 | David J. Boosales - Burlington, NC - Honda 250 - Sponsors: Tri-City Honda, Team Triad, Tapeworksm |
| Sharkskinz, Silkolene, Lockhart Phillips, Tsubaki, EBC, Interior Motives |
| 8 | 27 | Scotty Van Scoik - Warsaw, TN - Suzuki GSXR 600 - Sponsors: Firehawk Motorsports |
| 9 | 105 | Eric Konigsberg - Kalamazzo, MI - Honda 600 - Sponsors: Lovers Lane, Apparel Inmontion, Billards |
| Playground |
| 98 | 360 | Larry Denning - Olathe, KS - Kawasaki 600 - Sponsors: 4&6, EBC, Silkolene, Hindle, Sharkskinz, ProTek |
| 99 | 137 | Zachary Todd Baldridge - Lynchburg, VA - Suz 600 - Sponsors: Dunlop, EBC, Bell's Suzuki, Silklone, SMC, |
| River Ridge Auto Center, Sharkslinz, Yoshimra. |
| 99 | 14 | Brian Stokes - Douglasville, GA - Suzuki GSXR 600 - Sponsors: Team Suzuki Sport, Metzeler, Motion Systems, M-4, |
| Bieffe, EBC, Factory Alpine Stars, Fox Shocks, Tsubaki, Sharkskinz, Sprocket Specialists, Speed Labs, |
| Gustafsson, Asphalt and Gas, Freewheeling, GMD Computrack |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| Heavyweight Twins Ex |
| 1 | 5 | Luke C. Yarbrough - Winston-Salem, NC - Suz 1000 - Sponsors: 360 Communications, Metzeler, Arai, |
| Silkolene, EBC, HJC Leathers, D&D Factory, Maier, RK, JMK, Trackside, Lee's Performance, Penske |
| Lockhart/Phillips, Tapeworks, Tupelo Power Sports, Don's BP |
| A Riders finish position of 98 means a DNF, 99 means DNS |
| Heavyweight Twins Nv |
| 1 | 901 | Mike Mashewske - Dundee, NY - Honda 125 - Sponsors: Applied Business Systems, Dad, Graiglane Racing, |
| IM Lethers |
| 2 | 401 | Jason DiSalvo - Stafford, NY - Honda 125 - Sponsors: Applied Business Syst, Craig Lane Racing, IM Leathers |
| 3 | 864 | Cary Lurie - Gulfport, MS - Suzuki 1000 - Sponsors: Suzuki City of Biloxi |
| A Riders finish position of 98 means a DNF, 99 means DNS |