| | Heat | Dash | B Feature | A Feature |
|---|
|
|---|
| 1/10/1998 | Tulsa Expo Raceway - Tulsa, OK 12th Annual Chili Bowl Midgets | Results | | Kevin Thomas (Midgets) | - | - | - | 8th |
|
| 2/1/1998 | Phoenix International Raceway - Phoenix, AZ Midgets: USAC National Midgets Silver Crown: USAC Silver Crown Supermodifieds | Results | | Kevin Thomas (Midgets) | - | - | - | 17th | | Kevin Thomas (Silver Crown) | - | - | - | 28th |
|
| 4/11/1998 | Beaver Dam Raceway - Beaver Dam, WI 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 5th |
|
| 4/19/1998 | Phoenix International Raceway - Phoenix, AZ 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 20th |
|
| 5/2/1998 | Eldora Speedway - Rossburg, OH 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 5th |
|
| 5/16/1998 | Lucas Oil Raceway at Indianapolis - Clermont, IN Silver Crown: USAC Silver Crown | Results | | Kevin Thomas (Silver Crown) | - | - | - | 14th |
|
| 5/22/1998 | Indiana State Fairgrounds - Indianapolis, IN Silver Crown: USAC Silver Crown | Results | | Kevin Thomas (Silver Crown) | - | - | - | 14th |
|
| 5/24/1998 | Eldora Speedway - Rossburg, OH 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 8th |
|
| 5/29/1998 | Terre Haute Action Track - Terre Haute, IN 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 5th |
|
| 6/19/1998 | Attica Raceway Park - Attica, OH 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 1st |
|
| 6/20/1998 | Eldora Speedway - Rossburg, OH 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 9th |
|
| 6/26/1998 | Bloomington Speedway - Bloomington, IN | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 2nd |
|
| 7/1/1998 | Lucas Oil Raceway at Indianapolis - Clermont, IN 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 18th |
|
| 7/3/1998 | Terre Haute Action Track - Terre Haute, IN Silver Crown: USAC Silver Crown | Results | | Kevin Thomas (Silver Crown) | - | - | - | 21st |
|
| 7/10/1998 | Bloomington Speedway - Bloomington, IN | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 2nd |
|
| 7/11/1998 | Lincoln Park Speedway - Putnamville, IN | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 2nd |
|
| 7/24/1998 | Bloomington Speedway - Bloomington, IN 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 4th |
|
| 7/25/1998 | Paragon Speedway - Paragon, IN 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 9th |
|
| 7/26/1998 | Lincoln Park Speedway - Putnamville, IN 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 3rd |
|
| 8/14/1998 | Terre Haute Action Track - Terre Haute, IN 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 3rd |
|
| 8/15/1998 | Lincoln Park Speedway - Putnamville, IN 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 11th |
|
| 8/22/1998 | Illinois State Fairgrounds - Springfield, IL Silver Crown: USAC Silver Crown | Results | | Kevin Thomas (Silver Crown) | - | - | - | 30th |
|
| 8/28/1998 | Bloomington Speedway - Bloomington, IN | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 4th |
|
| 9/2/1998 | Terre Haute Action Track - Terre Haute, IN Midgets: USAC National Midgets | Results | | Kevin Thomas (Midgets) | - | - | - | 27th |
|
| 9/18/1998 | Bloomington Speedway - Bloomington, IN Midgets, 410 Sprints - Non-Winged | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 4th |
|
| 9/19/1998 | Lucas Oil Raceway at Indianapolis - Clermont, IN Midgets: USAC National Midgets 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 12th |
|
| 9/26/1998 | Eldora Speedway - Rossburg, OH 410 Sprints - Non-Winged: USAC National Sprint Cars Silver Crown: USAC Silver Crown Midgets | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | 4th | 10th | | Kevin Thomas (Silver Crown) | - | - | - | 18th |
|
| 10/3/1998 | Red Hill Raceway - Sumner, IL 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 6th |
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| 10/17/1998 | Lincoln Park Speedway - Putnamville, IN | Results | | Kevin Thomas (410 Sprints - Non-Winged) | - | - | - | 1st |
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