These represent entrants in our master registration database. Recently received entries, including online entries, may not yet be posted. Note:Chip numbers are included only for chip owners. If you plan to run with your own chip, be sure that the correct chip number i s listed here. Please report any errors to the Twilighter Registrar
| Bib # | Race | Chip ID | Name | Sex | Age | Hometown | |
| 853 | R | BC78344 | Cadieux, Lea | F | 37 | Fairfax VA | |
| 774 | R | DA6X5KZ | Campagna, Marc | M | 34 | Germantown MD | |
| 658 | R | DF8M9EG | Campbell, Letisha | F | 30 | Montclair VA | |
| 730 | R | DX45AGG | Campbell, Kati | F | 33 | Ellicott City MD | |
| 988 | R | DN5A6B5 | Campbell, Joe | M | 42 | Ellicott City MD | |
| 427 | R | DF04XMZ | Campbell, Jason | M | 15 | Washington DC | |
| 753 | R | CF23845 | Campbell, Geoffrey | M | 33 | Gaithersburg MD | |
| 1285 | R | DN2TAB9 | Canlas, Joe | M | 33 | Alexandria VA | |
| 267 | R | CA29395 | Caravoulias, Christina | F | 49 | Silver Spring MD | |
| 760 | R | CB15721 | Carbonell, Andrea | F | 34 | Damascus MD | |
| 120 | R | DA4EEKT | Cardamone, Denise | F | 25 | Washington DC | |
| 841 | R | CF90227 | Cardilli, Maurizio | M | 36 | Potomac MD | |
| 1500 | R | DA4YRPF | Cardona, Lillian | F | 39 | Rockville MD | |
| 1377 | R | CE70230 | Carlitz, Ruth | F | 22 | Washington DC | |
| 1668 | R | DA4XM0D | Carlton, Lisa | F | 38 | Washington DC | |
| 1134 | R | CH23998 | Carr, J | M | 51 | Mclean VA | |
| 1521 | R | DN71WHX | Carroll, Marti | F | 41 | Chevy Chase MD | |
| 323 | R | CE37067 | Carroll, Brian | M | 49 | Silver Spring MD | |
| 1752 | R | CG79599 | Carroll, Richard | M | 46 | Silver Spring MD | |
| 1986 | R | DF8H1E5 | Carroll, Robert | M | 40 | Damascus MD | |
| 1972 | R | DX3AFRY | Carroll, Whitney | F | 36 | Damascus MD | |
| 913 | R | DN95SRP | Carter, Laura | F | 39 | Kensington MD | |
| 417 | R | CG92525 | Carter, Aniyah | F | 14 | Indian Head MD | |
| 1184 | R | DX3311C | Carter, Patricia | F | 54 | Alexandria VA | |
| 645 | R | CG81926 | Carver, Priscilla | F | 29 | Washington DC | |
| 1048 | R | CA51648 | Cason, Barbara | F | 45 | Chesapeake VA | |
| 1182 | R | DF38Y4K | Casserly, David | M | 54 | Alexandria VA | |
| 272 | R | DF7WD1G | Cassidy, Rosie | F | 50 | Rockville MD | |
| 340 | R | CH53542 | Celtnieks, Imants | M | 59 | Wheaton MD | |
| 897 | R | CD66359 | Chabot, Brian | M | 39 | Rockville MD | |
| 590 | R | CH41754 | Chadda, Bandana | F | 27 | Germantown MD | |
| 981 | R | DA66DRT | Chadwick, W | M | 42 | Falls Church VA | |
| 706 | R | BC20075 | Chambers, Christopher | M | 32 | Severn MD | |
| 1055 | R | DX5NBX7 | Chan, Chris | M | 45 | Silver Spring MD | |
| 1289 | R | DF82Z72 | Chan, Peter | M | 34 | Germantown MD | |
| 1943 | R | CA80985 | Chasen, Jessica | F | 23 | Bethesda MD | |
| 1057 | R | DN0D51F | Chatlin, Steven | M | 45 | Olney MD | |
| 40 | R | DA48PRZ | Chattin, Chris | M | 40 | Columbia MD | |
| 917 | R | CE60175 | Chaves, Nancy | F | 39 | Arlington VA | |
| 942 | R | CB58457 | Cheetham, Kevin | M | 40 | Centreville VA | |
| 580 | R | DX80AP7 | Chemerys, Alex | M | 26 | Woodbridge VA | |
| 615 | R | DX3R8GW | Chen, Ray | M | 28 | Mclean VA | |
| 1248 | R | DN731C9 | Chen, Yin-Yu | M | 17 | North Potomac MD | |
| 632 | R | CG82879 | Cheskis, Sharone | F | 28 | Wheaton MD | |
| 1151 | R | DX637C1 | Chica-Garzon, Magdalena | F | 52 | N. Potomac MD | |
| 1706 | R | DA66NDW | Chion, Antonia | F | 50 | Kensington MD | |
| 111 | R | DN1C8S3 | Chlumsky, Erin | F | 24 | Baltimore MD | |
| 1272 | R | CF25485 | Christensen, Emily | F | 29 | Washington DC | |
| 437 | R | DX6VXV7 | Christopher, Lance | M | 16 | Washington DC | |
| 976 | R | DN3Z602 | Chrosniak, Cynthia | F | 42 | Silver Spring MD | |
| 502 | R | DX6F0HF | Chwan, Rebecca | F | 23 | Millersville MD | |
| 1944 | R | DA4MREB | Clair, Kristine | F | 23 | Alexandria VA | |
| 617 | R | CA51516 | Clark, Justin | M | 28 | Bethesda MD | |
| 794 | R | DF62CVH | Clark, Michelle | F | 35 | Gaithersburg MD | |
| 486 | R | BC62867 | Clark, Brandon | M | 21 | Springfield VA | |
| 1388 | R | DX0SBEA | Clark, Kathleen | F | 24 | Mount Airy MD | |
| 1798 | R | DF8GNN6 | Claster, Rebecca | F | 32 | Washington DC | |
| 651 | R | DX42H4M | Clawson, Brett | M | 29 | Gaithersburg MD | |
| 428 | R | CG97793 | Clay, Jeremy | M | 15 | Adelphi MD | |
| 1441 | R | DX297A1 | Clayton, Jason | M | 31 | Takoma Park MD | |
| 996 | R | DA4H18D | Cleary, D.j. | F | 42 | Haymarket VA | |
| 1102 | R | BC92706 | Cleary, Larry | F | 48 | Haymarket VA | |
| 1895 | R | DA92325 | Clelland, Kellie | F | 35 | Rockville MD | |
| 1462 | R | DA9R2KG | Cleveland, Grant | M | 34 | Alexandria VA | |
| 586 | R | DX6EPAY | Clinebell, Neil | M | 27 | Mechanicsville VA | |
| 1079 | R | DA4HDTR | Clingan, Ralph | M | 47 | Germantown MD | |
| 2015 | R | DF1XKZ9 | Clinton, Larry | M | 53 | Silver Spring MD | |
| 1189 | R | DN8A696 | Clune, Dan | M | 55 | Chevy Chase MD | |
| 623 | R | CA84285 | Clune, Margaret | F | 28 | Columbia MD | |
| 1178 | R | DX2PB3Z | Coblentz, Joseph | M | 54 | Silver Spring MD | |
| 1005 | R | DA4SDMB | Cockerill, Kenneth | M | 43 | Washington DC | |
| 1164 | R | DN935NP | Codd, Nick | M | 53 | Severna Park MD | |
| 733 | R | CA86025 | Coffee, Michael | M | 33 | Alexandria VA | |
| 1815 | R | DX4BGW2 | Coffey, Meredith | F | 36 | Bethesda MD | |
| 783 | R | DN0D9Y4 | Cogar, Danielle | F | 35 | Falls Church VA | |
| 1329 | R | CD49180 | Coghlan, Des | M | 48 | Lovettscille VA | |
| 660 | R | CF01799 | Cohen, Margo | F | 30 | Rockville MD | |
| 661 | R | DF5V9RW | Cohen, Brad | M | 30 | Rockville MD | |
| 1915 | R | DA27SK2 | Cohen, Sara | F | 42 | Gaithersburg MD | |
| 1984 | R | DA4FAX3 | Cole, Andrew | M | 39 | Rockville MD | |
| 1415 | R | CD84954 | Collins, Kimberly | F | 28 | Gaithersburg MD | |
| 1433 | R | CF33752 | Collins, Kerry | F | 30 | Gaithersburg MD | |
| 1582 | R | CA51518 | Collins, Valerie | F | 54 | Gaithersburg MD | |
| 1239 | R | DA4K9M8 | Collins, Jeff | M | 58 | Potomac MD | |
| 569 | R | DF8B9YB | Collinson, Ellen | F | 26 | Arlington VA | |
| 319 | R | CG90172 | Colliton, Andrew | M | 44 | Silver Spring MD | |
| 17 | R | CE99446 | Conboy, Chris | M | 36 | Baltimore MD | |
| 1513 | R | DX1TD1B | Conquest, Tammy | F | 41 | Lanham MD | |
| 653 | R | DX33GYM | Cook, Bonnie | F | 29 | Alexandria VA | |
| 1575 | R | CD21988 | Cook, Michael | M | 51 | Dickerson MD | |
| 642 | R | CF60707 | Coon, Selena | F | 29 | Severn MD | |
| 1888 | R | CC75648 | Cooper, Clive | M | 32 | Falls Church VA | |
| 1031 | R | CD50702 | Corbett, Charlotte | F | 44 | Potomac MD | |
| 1823 | R | DA06BK7 | Corbo, Jim | M | 41 | Columbia MD | |
| 1893 | R | BC35000 | Cormack, Kyle | M | 34 | Arlington VA | |
| 269 | R | CG54893 | Corrigan, John | M | 50 | Chevy Chase MD | |
| 1794 | R | CH60596 | Corsiglia, Jon | M | 30 | Washington DC | |
| 1223 | R | DA9BHXX | Cosson, David | M | 62 | Potomac MD | |
| 1114 | R | DX5NA2R | Costa, Eugene | M | 49 | Silver Spring MD | |
| 1623 | R | DA9CT58 | Costa, Gregory | M | 19 | Silver Spring MD | |
| 1631 | R | DX1MVBD | Costa, Jason | M | 22 | Silver Spring MD | |
| 1637 | R | BC24763 | Costello, Michael | M | 25 | Washington DC | |
| 1296 | R | CA51131 | Costopoulos, Phil | M | 43 | Annandale VA | |
| 800 | R | DA66R8A | Cottrell, Karen | F | 35 | Alexandria VA | |
| 1306 | R | DX88798 | Coulson, Tim | M | 39 | Rockville MD | |
| 836 | R | DX648RN | Counts, Cynthia | F | 36 | Silver Spring MD | |
| 790 | R | DA41WFT | Cox, Adrienne | F | 35 | Crofton MD | |
| 1726 | R | CG15433 | Cox, Michelle | F | 22 | Gaithersburg MD | |
| 1912 | R | DX84N87 | Cox, Gary | M | 41 | Bowie MD | |
| 1843 | R | CC46846 | Coy, Lawrence | M | 52 | Silver Spring MD | |
| 695 | R | CE20290 | Craig, Wendy | F | 31 | Silver Spring MD | |
| 262 | R | DN4R95G | Craney, Karen | F | 48 | Poolesville MD | |
| 245 | R | DG3G8P9 | Cranshaw, Lesley | F | 42 | Reston VA | |
| 1214 | R | DN5DY09 | Craun, Chris | F | 58 | Bethesda MD | |
| 477 | R | CC68090 | Crawford, Timothy | M | 20 | Gaithersburg MD | |
| 1707 | R | DX8Y4DP | Cregger, Linda | F | 50 | Herndon VA | |
| 1122 | R | CF76120 | Cricard, Paul | M | 50 | Columbia MD | |
| 619 | R | DX3B1D1 | Cricard Iii, Paul | M | 28 | Columbia MD | |
| 785 | R | DX1KCTH | Crilly, Brian | M | 35 | Olney MD | |
| 715 | R | DX871VX | Crites, Mary | F | 32 | Perry Hall MD | |
| 697 | R | DX467F8 | Crockett, John | M | 31 | White Bear Lake MN | |
| 2016 | R | CF35382 | Crockett, Brad | M | 53 | Baltimore MD | |
| 313 | R | DR5F10B | Cron, Nina | F | 35 | Alexandria VA | |
| 1507 | R | DN71RBD | Crowder, Brad | M | 40 | Ashburn VA | |
| 311 | R | CB92001 | Crumrine, Roy | M | 31 | Germantown MD | |
| 1613 | R | DA9T63A | Crutchely, Cody | M | 17 | Frederick MD | |
| 1722 | R | CD53483 | Crutchfield, Warren | M | 67 | Rockville MD | |
| 1097 | R | DX68F2K | Cunningham, Glenn | M | 48 | Gaithersburg MD | |
| 764 | R | DN0ZD2R | Curtis, Theresa | F | 34 | Silver Spring MD | |
| 898 | R | DX5F88D | Czarnecki, John | M | 36 | Parker CO |