| 1088 | 883 | 27:50 | 11:12 | Dan | Abar | M | 29 | TIOBEC TEAM |
| 114 | 803 | 25:40 | 10:20 | Jessica | Abbas | F | 31 | AKAMAI |
| 325 | 152 | 17:16 | 6:57 | Jacob | Abdolmohammadi | M | 28 | DELOITTE |
| 134 | 517 | 21:18 | 8:35 | Shane | Abrams | M | 27 | ARBOR COMMERCIAL MORTGAGE |
| 101 | 794 | 25:32 | 10:17 | Elizabeth | Adams | F | 32 | AKAMAI |
| 1026 | 431 | 20:15 | 8:09 | Stephanie | Aebi | F | 27 | STATE STREET FINANCE |
| 532 | 209 | 17:58 | 7:14 | John | Ahern | M | 30 | HARPOON |
| 302 | 597 | 22:10 | 8:55 | Caitlyn | Alebrt | F | 24 | CREATIVE OFFICE PAVILION |
| 538 | 290 | 18:52 | 7:36 | Michael | Alessandro | M | 30 | HARPOON |
| 569 | 437 | 20:17 | 8:10 | Joe | Alfano | M | 29 | INCOME RESEARCH + MANAGEMENT |
| 1033 | 245 | 18:21 | 7:23 | Cristobal | Alfonso | M | 37 | STATE STREET RUNNERS |
| 525 | 910 | 29:19 | 11:48 | Merrill | Allen | F | 29 | HARPOON |
| 397 | 114 | 16:47 | 6:45 | Michael | Allen | M | 34 | EPILEPSY FOUNDATION |
| 832 | 628 | 22:41 | 9:08 | Alexandra | Allocca | F | 22 | NEW BALANCE - RUNNERS |
| 156 | 753 | 24:37 | 9:55 | Janelle | Anderson | F | 37 | BLACKROCK |
| 390 | 776 | 25:16 | 10:10 | Michael | Anderson | M | 40 | EMC CORP |
| 404 | 568 | 21:47 | 8:46 | Robert | Anderson | M | 45 | EPILEPSY FOUNDATION |
| 705 | 871 | 27:36 | 11:07 | Alicia | Anderson | F | 26 | JONES LANG LASALLE |
| 362 | 731 | 24:24 | 9:49 | Pam | Andrade | F | 39 | DYER BROWN |
| 496 | 599 | 22:14 | 8:57 | Tulika | Angaian | F | 40 | GMO |
| 726 | 550 | 21:38 | 8:42 | Peter | Antonelli | M | 43 | LECLAIRRYAN P.C. |
| 687 | 539 | 21:32 | 8:40 | William | Apken | M | 42 | JOHN HANCOCK |
| 14 | 533 | 21:28 | 8:38 | Jason | Apruzzese | M | 29 | BNY MELLON |
| 501 | 483 | 20:49 | 8:23 | Karan | Arakotaram | M | 27 | GMO |
| 346 | 585 | 22:00 | 8:51 | Alicia | Araujo | F | 33 | DYER BROWN |
| 777 | 674 | 23:20 | 9:24 | Nicole | Ardine | F | 26 | NEW BALANCE - RUNNERS |
| 454 | 1011 | 43:15 | 17:24 | Christina | Arlin | F | 30 | FORT POINT PM |
| 1161 | 82 | 16:07 | 6:29 | Nathan | Armitage | M | 33 | THOMAS PARTNERS |
| 277 | 665 | 23:14 | 9:21 | Phoebe | Augustine | F | 31 | COLUMBIA THREADNEEDLE |
| 515 | 309 | 19:07 | 7:42 | Joe | Auth | M | 46 | GMO |
| 597 | 384 | 19:42 | 7:56 | Emily | Babbitt | F | 28 | |
| 11 | 676 | 23:24 | 9:25 | Ramana | Babu | M | 42 | STATE STREET - SPARTANS |
| 1011 | 617 | 22:31 | 9:04 | Elaina | Baer | F | 27 | STATE STREET FINANCE |
| 30 | 145 | 17:07 | 6:54 | James | Baghai | M | 27 | BNY MELLON |
| 280 | 782 | 25:23 | 10:13 | Anwiti | Bahuguna | F | 45 | COLUMBIA THREADNEEDLE |
| 1 | 276 | 18:42 | 7:32 | Jeremy | Baker | M | 47 | BNY MELLON |
| 928 | 955 | 32:09 | 12:56 | Michael | Balbi | M | 33 | PRICEWATERHOUSECOOPERS |
| 121 | 577 | 21:52 | 8:48 | Erika | Baldwin | F | 27 | ANCHOR CAPITAL ADVISORS |
| 973 | 61 | 15:44 | 6:20 | Ian | Barnes | M | 43 | STANDISH |
| 1184 | 505 | 21:03 | 8:28 | Phoebe | Barrett | F | 30 | WINTERWYMAN |
| 655 | 293 | 18:54 | 7:37 | Christopher | Barry | M | 25 | JDL CORPORATE INTERIORS |
| 22 | 213 | 17:59 | 7:14 | Colleen | Bartling | F | 36 | BNY MELLON |
| 64 | 139 | 17:04 | 6:52 | Colin | Bates | M | 26 | TURNER CONSTRUCTION |
| 851 | 582 | 21:58 | 8:51 | Arthur | Baxter | M | 31 | OXFORD PROPERTIES |
| 216 | 65 | 15:49 | 6:22 | Mike | Beaudry | M | 40 | CHAPMAN CONSTRUCTION |
| 595 | 519 | 21:19 | 8:35 | Knar | Bedian | F | 23 | |
| 356 | 866 | 27:30 | 11:04 | Becky | Bedwell | F | 37 | DYER BROWN |
| 1110 | 944 | 31:34 | 12:42 | Jeff | Belanger | M | 26 | VANTAGE BUILDERS INC. |
| 60 | 333 | 19:20 | 7:47 | Jeffery | Benitez | M | 30 | TURNER CONSTRUCTION |
| 748 | 329 | 19:18 | 7:46 | Charles | Bennett | M | 66 | MURPHY & KING PC |
| 478 | 393 | 19:45 | 7:57 | Kevin | Berry | M | 24 | GMO |
| 1028 | 946 | 31:39 | 12:44 | Mark | Bessert | M | 47 | STATE STREET FINANCE |
| 825 | 350 | 19:29 | 7:51 | Brian | Best | M | 33 | NEW BALANCE - RUNNERS |
| 737 | 872 | 27:36 | 11:07 | Claudia | Bettencourt | F | 49 | MAYO INVESTMENT MANAGEMENT |
| 590 | 102 | 16:30 | 6:39 | Eric | Biegeleisen | M | 35 | |
| 940 | 839 | 26:49 | 10:48 | Rene | Bilezikian | F | 31 | SAFETY INSURANCE |
| 981 | 19 | 14:27 | 5:49 | Jason | Bilodeau | M | 37 | STANDISH |
| 903 | 146 | 17:08 | 6:54 | Elizabeth | Binstadt | F | 25 | PRICEWATERHOUSECOOPERS |
| 102 | 21 | 14:35 | 5:52 | Tom | Bishop | M | 43 | AKAMAI |
| 207 | 988 | 36:19 | 14:37 | Michele | Blair | F | 29 | CHAPMAN CONSTRUCTION |
| 754 | 978 | 35:03 | 14:06 | Paula | Blake | F | 65 | MURPHY & KING PC |
| 173 | 308 | 19:06 | 7:41 | John | Blazo | M | 55 | BOSTON AIR SYSTEMS |
| 172 | 182 | 17:38 | 7:06 | John | Blazo Jr. | M | 24 | BOSTON AIR SYSTEMS |
| 653 | 229 | 18:08 | 7:18 | Phil | Boccalatte | M | 41 | JDL CORPORATE INTERIORS |
| 453 | 436 | 20:16 | 8:10 | Michael | Bogdan | M | 30 | FORT POINT PM |
| 507 | 112 | 16:46 | 6:45 | David | Bohan | M | 51 | GMO |
| 257 | 598 | 22:12 | 8:56 | Brittany | Boilard | F | 26 | COLUMBIA CONSTRUCTION |
| 548 | 962 | 32:53 | 13:14 | Valerie | Bonetti | F | 47 | HOWLAND CAPITAL MANAGEMENT |
| 809 | 1003 | 38:52 | 15:39 | Manny | Bonilla | M | 57 | NEW BALANCE - RUNNERS |
| 823 | 626 | 22:40 | 9:07 | Jimmy | Bonilla | M | 47 | NEW BALANCE - RUNNERS |
| 77 | 857 | 27:21 | 11:00 | Carrie | Borges Patricio | F | 38 | TURNER CONSTRUCTION |
| 395 | 917 | 29:42 | 11:57 | Jim | Boudrot | M | 51 | EPILEPSY FOUNDATION |
| 396 | 918 | 29:43 | 11:58 | Kim | Boudrot | F | 46 | EPILEPSY FOUNDATION |
| 38 | 225 | 18:05 | 7:17 | Wesley | Bouges | M | 24 | TURNER CONSTRUCTION |
| 727 | 969 | 33:40 | 13:33 | Shanna | Boughton | F | 37 | LECLAIRRYAN P.C. |
| 658 | 448 | 20:23 | 8:12 | Chase | Bourdelaise | M | 29 | JDL CORPORATE INTERIORS |
| 610 | 154 | 17:19 | 6:58 | Sam | Bourneuf | M | 28 | |
| 104 | 80 | 16:06 | 6:29 | Thomas | Bowcut | M | 38 | AKAMAI |
| 642 | 252 | 18:26 | 7:25 | Luke | Bowen | M | 37 | JDL CORPORATE INTERIORS |
| 419 | 742 | 24:32 | 9:53 | Rebekah | Bowie | F | 29 | EQUITY OFFICE |
| 987 | 445 | 20:20 | 8:11 | David | Bowser | M | 28 | STANDISH |
| 1194 | 88 | 16:12 | 6:31 | Chris | Boyle | M | 0 | TURNER CONSTRUCTION |
| 1086 | 576 | 21:51 | 8:48 | Louisa | Bradberry | F | 26 | TIOBEC TEAM |
| 1049 | 392 | 19:44 | 7:57 | Jamie | Braddock | F | 29 | STATE STREET WIN |
| 636 | 223 | 18:05 | 7:17 | John | Bradshaw | M | 30 | JDL CORPORATE INTERIORS |
| 1035 | 9 | 13:49 | 5:34 | Steve | Brady | M | 35 | STATE STREET RUNNERS |
| 151 | 378 | 19:40 | 7:55 | Patrick | Brady | M | 28 | ARBOR COMMERCIAL MORTGAGE |
| 964 | 305 | 19:04 | 7:40 | Julia | Braithwaite | F | 42 | STANDISH |
| 183 | 590 | 22:04 | 8:53 | Jeff | Brandli | M | 51 | BOSTON HARBOR CRUISES |
| 506 | 286 | 18:49 | 7:35 | Robert | Brannan | M | 38 | GMO |
| 627 | 789 | 25:26 | 10:14 | Alex | Brennan | M | 25 | JDL CORPORATE INTERIORS |
| 1025 | 535 | 21:28 | 8:39 | Rick | Bretagne | M | 48 | STATE STREET FINANCE |
| 45 | 164 | 17:25 | 7:01 | Matthew | Brett | M | 28 | TURNER CONSTRUCTION |
| 350 | 948 | 31:42 | 12:45 | Michelle | Bristol | F | 25 | DYER BROWN |
| 162 | 345 | 19:28 | 7:50 | Vin | Brod | M | 45 | BLACKROCK |
| 1136 | 669 | 23:18 | 9:23 | Thomas | Broderick | M | 25 | WB ENGINEERING / J. CALNAN & ASSOCIATES |
| 581 | 201 | 17:51 | 7:11 | Jake | Brogan | M | 29 | INCOME RESEARCH + MANAGEMENT |
| 1096 | 532 | 21:28 | 8:38 | Darla | Brooks | F | 48 | VANTAGE BUILDERS INC. |
| 260 | 898 | 28:34 | 11:30 | Sarah | Brophy | F | 36 | COLUMBIA CONSTRUCTION |
| 932 | 181 | 17:37 | 7:06 | Charles | Brophy | M | 26 | SAFETY INSURANCE |