| -- Not Official -- Transponder Top Group Times 2021TT - Apr 03-04 -- Not Official -- |
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| ==================================== |
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| CC17 | TT+TR | 338 | 01:50.75 | Vazquez, Walter | Red | 8 | White |
| CC16 | TT | 188 | 01:52.20 | Rozenblatt, Mike | Red | 8 | Grey Yellow |
| CC17 | TT+TR | 307 | 01:52.91 | Gildersleeve, Rich | Red | 9 | White-Green |
| CC13 | TT+TR | 981 | 01:53.50 | Duncan, Jad | Red | 8 | Silver |
| CC14 | TT+TR | 372 | 01:53.95 | MacDuff, Chris | Timed | 1 | Black |
| CC17 | TT+TR | 314 | 01:54.27 | Chang, Michael | Red | 2 | White |
| CC14 | TT | 277 | 01:55.70 | Adelman, Greg | Red | 7 | Blue |
| CC17 | TT+TR | 169 | 01:55.79 | Rosenblatt, Adam | Red | 9 | GT Silver |
| CC13 | TT | 183 | 01:55.92 | Lee, Derek | Red | 3 | GT Silver |
| CC13 | TT+TR | 117 | 01:56.33 | dEsparbes, Eric | Red | 7 | Midnight Blue |
| CC17L | TT+TR | 3071 | 01:56.35 | Gildersleeve, Tammy | Orange | 9 | White-Green |
| CC12 | TT+TR | 11 | 01:56.85 | Krylow, John | Red | 6 | Lava Orange |
| CC13 | TT+TR | 121 | 01:57.00 | Yip, Fred | Red | 9 | Silver |
| X | TT | 429 | 01:57.47 | Walsh, Eric | Red | 8 | Red/Black |
| CC14 | TT | 13 | 01:57.50 | Michelsen, Fritz | Red | 3 | Grey |
| CC13 | TT+TR | 216 | 01:57.74 | Zouras, Aspasia | Red | 7 | Blue |
| CC13 | TT | 355 | 01:57.83 | Arter, Tom | Red | 7 | Blue |
| CC13 | TT+TR | 774 | 01:58.61 | Walker, Jim | Red | 3 | Silver |
| CC12 | TT+TR | 112 | 01:58.84 | Raines, Andrew | Red | 7 | Black |
| CC07 | TT+TR | 171 | 01:59.54 | Walker, Rob | Red | 7 | Blue |
| CC15 | TT+TR | 681 | 01:59.54 | Graber, Grant | Orange | 8 | Sapphire Blue |
| CC14 | TT | 855 | 01:59.55 | Wing, Bruce | Orange | 4 | White |
| CC09 | TT+TR | 614 | 01:59.93 | Wunderly, Murray | Timed | 1 | Silver |
| CC09 | TT+TR | 1 | 02:00.22 | Rondeau, Mark | Red | 9 | Silver |
| CC10 | TT+TR | 1401 | 02:00.95 | Dhawan, Sagar | Orange | 9 | Brown |
| CC11 | TT | 515 | 02:01.08 | Owens, John | Orange | 7 | Silver |
| X | TT | 148 | 02:01.52 | Firshein, Steve | Orange | 7 | Blue |
| CC14 | TT+TR | 396 | 02:02.22 | Beyer, Thomas | Orange | 7 | Black |
| BoxsterSpec | TT+TR | 740 | 02:02.39 | Filsinger, Paul | Orange | 8 | Grey |
| CC10 | TT+TR | 342 | 02:02.53 | Ly, Vinh | Red | 9 | White |
| CC10 | TT+TR | 97 | 02:02.54 | Grosekemper, Steve | Red | 8 | Red |
| CC13 | TT | 158 | 02:02.78 | Wilson, Colin | Orange | 3 | Silver |
| CC07 | TT | 115 | 02:03.05 | Gill, Adam | Red | 7 | White |
| CC08 | TT+TR | 41 | 02:03.51 | Nguyen, Bryant | Yellow | 9 | White |
| BoxsterSpec | TT+TR | 910 | 02:03.55 | Sechrest, Kevin | Orange | 8 | White |
| BoxsterSpec | TT+TR | 950 | 02:03.58 | Filsinger, Alex | Timed | 1 | Grey |
| CC10 | TT+TR | 9 | 02:03.62 | Chambers, Dan | Red | 7 | Black |
| CC11 | TT+TR | 315 | 02:03.82 | Fingland, Jamie | Orange | 8 | White |
| CC09 | TT+TR | 5 | 02:03.91 | Huxhold, Mark | Orange | 9 | White |
| CC15 | TT | 122 | 02:04.20 | Mahoney, Will | Yellow | 8 | Black |
| CC08 | TT+TR | 1183 | 02:04.47 | Ascough, Tim | Orange | 9 | Silver |
| CC10 | TT+TR | 98 | 02:04.58 | Phillips, Greg | Timed | 1 | Silver |
| CC07 | TT+TR | 991 | 02:04.62 | Keefer, Chris | Orange | 9 | Black |
| X | TT+TR | 1118 | 02:05.04 | Price, Matt | Yellow | 8 | White |
| X | TT | 53 | 02:05.24 | Shon, Russell | Orange | 9 | Metallic Red |
| X | TT | 161 | 02:05.31 | Ross, Ron | Yellow | 9 | Black |
| CC12 | TT | 700 | 02:05.35 | Brighenti, Guilherme | Yellow | 9 | Agate Gray |
| X | TT+TR | 954 | 02:06.21 | Moore, Ryan | Yellow | 9 | LagunaSeca Blue |
| X | TT | 90 | 02:06.40 | Park, Richard | Orange | 8 | Orange/Silver |
| X | TT | 447 | 02:06.51 | Ubieta, Albert | Orange | 6 | Black |
| CC06 | TT+TR | 101 | 02:06.58 | Curran, Mark | Timed | 1 | Red |
| CC11 | TT+TR | 91 | 02:06.74 | Samad, Gary | Yellow | 9 | Gentian Blue |
| 944Spec | TT+TR | 58 | 02:07.26 | Sharp, Charles | Orange | 2 | Red |
| CC06 | TT+TR | 51 | 02:07.55 | Linares, Ralph | Timed | 1 | Black |
| CC03 | TT+TR | 703 | 02:08.32 | Flanagan, Shawn | Orange | 8 | Red |
| CC11 | TT+TR | 1925 | 02:08.53 | Armstrong, Greg | Yellow | 8 | White |
| CC05 | TT+TR | 28 | 02:08.67 | Varon, Javier | Timed | 1 | Blue |
| CC07 | TT+TR | 659 | 02:08.70 | Marc-Aurele, Eric | Yellow | 2 | Speed Yellow |
| CC13 | TT | 426 | 02:08.79 | Fenstermaker, Craig | Orange | 9 | Silver |
| CC07 | TT | 977 | 02:08.93 | Aguirre, Marcela | Yellow | 6 | White |
| CC05 | TT+TR | 420 | 02:09.01 | Miller, Mike | Yellow | 9 | Meridian Metal |
| CC11 | TT+TR | 925 | 02:09.45 | Armstrong, Eric | Timed | 1 | White |
| BoxsterSpec | TT+TR | 134 | 02:09.47 | Wray, Alisha | Yellow | 9 | Snow leopard |
| CC12 | TT | 526 | 02:10.12 | Fefferman, Daniel | Yellow | 2 | White |
| X | TT+TR | 133 | 02:10.47 | Andreoli, Ashley | Yellow | 8 | SGM |
| CC07 | TT+TR | 808 | 02:10.48 | Fraser, Bryan | Orange | 7 | Silve LimeGreen |
| CC08 | TT+TR | 608 | 02:10.55 | Helvey, Tom | Yellow | 8 | Black |
| SS04 | TT+TR | 726 | 02:10.60 | Bush, Roger | Red | 2 | Carmine Red |
| CC09 | TT+TR | 102 | 02:10.89 | Auten, Donald | Yellow | 8 | Gray |
| 944Spec | TT+TR | 272 | 02:11.79 | Diamond, David | Orange | 7 | Red |
| CC04 | TT+TR | 883 | 02:12.64 | Garcia, Michael | Yellow | 6 | Gray |
| 944Spec | TT+TR | 85 | 02:12.81 | Sharp, Debby | Red | 1 | Red /Wh Stripes |
| CC04 | TT+TR | 960 | 02:13.14 | Behun, Bill | Orange | 9 | Butterscotch TT |
| X | TT+TR | 255 | 02:13.18 | Clinkinbeard, Don | Orange | 9 | Storm Titanium |
| CC08 | TT+TR | 626 | 02:14.41 | Elovitz, David | Orange | 4 | White |
| BoxsterSpec | TT | 409 | 02:14.44 | Drehmann, Klaus | Yellow | 9 | Blue |
| X | TT | 624 | 02:14.59 | Elovitz, Adam | Timed | 1 | Silver |
| CC07 | TT+TR | 554 | 02:14.82 | Blaesi, Randy | Timed | 1 | Silver |
| X | TR | 997 | 02:16.36 | Wilbur, Elizabeth | Yellow | 4 | Mineral Grey |
| CC08L | TT+TR | 44 | 02:16.68 | Varon, Victoria | Yellow | 9 | Black |
| BoxsterSpec | TT | 1134 | 02:17.14 | Wray, Dirk | Orange | 8 | Snow leopard |
| CC05 | TR | 127 | 02:18.92 | McClure, Jason | Yellow | 2 | Blue |
| CC07 | TT | 801 | 02:25.60 | Bastain, Mark | Yellow | 9 | GT Silver |
| CC10 | TT | 159 | 02:27.12 | Somers, Connie | Yellow | 2 | Black |