| Driver: George A Suennen | Vehicle: 1990 Porsche 928 S4 (unless otherwise noted) | |||||
| As Driver | ||||||
| Event Name | Speed Class | Finished | Average Speed | Speed Trap | Navigator | Comments |
| 2000 Pony Express | 120 | 10th | 121.024 | 129 | None | |
| 2001 Pony Express | 135 | CAN | NA | NA | Dennis Kao | Race Cancelled |
| 2002 Bonneville 100 | 140 | 5th | 143.598 | 160 | Dennis Kao | Second Leg Red Flagged: Bud Ridenour crash |
| 2002 Pony Express | 145 | 4th | 143.947 | 163 | None | |
| 2003 Bonneville 100 | 145 | 2nd | 144.965 | 164 | Rich Sanders | |
| 2003 Gamblers Run | 145 | 2nd | 145.088 | 163 | Tim Bosserman | |
| 2003 Pony Express | 145 | 2nd | 145.055 | 163 | Tim Bosserman | |
| 2004 Bonneville 100 | 155 | 2nd | 155.037 | 166 | Tim Bosserman | |
| 2004 Gamblers Run | 155 | 1st | 154.764 | 168 | Tim Bosserman | |
| 2004 Pony Express | 155 | RF | NA | 150 | Tim Bosserman | Lem Tolliver crash |
| 2005 Bonneville 100 | 155 | 3rd | 154.316 | 166 | Tim Bosserman | |
| 2005 Gamblers Run | 160 | 1st | 160.241 | 177 | Tim Bosserman | First 180 Tech |
| 2005 Pony Express | 160 | 1st | 159.055 | 179 | Tim Bosserman | |
| 2006 Bonneville 100 | 160 | 1st | 158.658 | 177 | Tim Bosserman | |
| 2006 Pony Express | 160 | 1st | 157.558 | 187 | Tim Bosserman | First Unlimited Tech |
| 2007 Bonneville100 | 160 | DNF | 160.16 | 186 | Rich Sanders | Engine failure second leg (gps top speed 189) |
| 2008 Bonneville 100 | 170 | WTD | NA | NA | Rich Sanders | MAF Boot split during practice |
| 2008 Pony Express | 160 | DNF | NA | 198.4 | Rich Sanders | MAF Boot split (gps top speed 199) |
| 2009 NORC | 150 | 17th | 151.5445 | 164 | Bill Ball | Bill Ball's 89 928S4 |
| 2009 SSCC | 160 | DNF | NA | NA | None | Fuel Delivery Problem (gps top speed 185) |
| 2010 Bonneville 100 | 165 | WTD | NA | NA | Bill Ball | Rear Axle came loose before race |
| 2010 SSCC | 160 | WTD | NA | NA | Bill Ball | Supercharger Bearing failure at tech |
| 2011 NORC | 160 | 3rd | 157.0189 | 170.4 | None | 40+ mph head winds (gps top speed 186) |
| 2011 SSCC | 160 | RF | NA | NA | Bill Ball | Rick DeKneef crash |
| 2012 NORC | 160 | 3rd | 159.5703 | 200.5 | None | (gps top speed 203) |
| 2012 SSCC | 170 | 2nd | 170.2354 | 196.3 | None | (gps top speed 201) |
| 2013 NORC | 170 | 1st | 170.6097 | 210 | Van Bagley | (gps top speed 210) |
| 2015 SSCC | 170 | 2nd | 170.1916 | 202.1 | None | (gps top speed 205) |
| 2016 NORC | 170 | 1st | 172.4058 | 201.4 | None | (gps top speed 209) |
| 2017 NORC | 170 | 3rd | 175.0056 | 208.4 | None | Unoffical Target 175 mph (gps top speed 207.3) |
| 2017 SSCC | 180 | 1st | 175.5815 | 197.6 | None | 10mph headwind (gps top speed 200) |
| 2018 SSCC | 170 | 1st | 176.1729 | 207.24 | None | (gps top speed 213) |
| 2019 SSCC | 180 | 1st | 179.8144 | 219 | None | (gps top speed 218) |
| 2023 NORC | 160 | 2nd | 159.887 | 200.2 | None | (gps top speed 199) |
| Fastest 928 Avg MPH | 200+ MPH | 200+ MPH | ||||
| As Co-Driver | ||||||
| Event Name | Speed Class | Finished | Average Speed | Speed Trap | Co-Driver | Comments |
| 2007 Gamblers Run | 155 | 3rd | 154.959 | 163 | Paul Mooradian | Paul's 06 Z06 |
| 2007 Pony Express | 155 | RF | NA | NA | Paul Mooradian | Paul's Z06 - Don Plyman crash |
| CAN | Race Cancelled | |||||
| RF | Race Red Flagged | |||||
| DNF | Did Not Finish | |||||
| WTD | Withdrew | |||||