Race number assignment policy is as follows.
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Top 10 numbers are awarded to top ten finishers in previous years race.
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All John Clancey overall race winners, women's and men's are assigned a number for life. The number is reserved for their use only.
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The assigned number will not be used, if the person assigned the number does not appear or is a top 10 finisher from the previous year's race
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These number assignments are only for the John Clancey Race
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Also there will be a Clydesdale (over 200 pounds) division and Aero (Shaved head) division.
The race number assignments for the 2013 John Clancey Race are as follows. to go.
| Number | Name | Confirmed for Race |
| 1 | Russell Avery | No |
| 2 | Bill Dusting | Yes |
| 3 | Jonathan Lopez | No |
| 4 | Brian Wrona | Yes |
| 5 | Greg Zachkowski | Yes |
| 6 | Andy Thacher | Yes |
| 7 | Josef Cuesico | Yes |
| 8 | Michael (MYKL) Shannon | No |
| 9 | Jed Jones/Sue Parnes | No |
| 10 | Dean Sprague | Yes |
| Following numbers assigned to former race winners forever | ||
| 11 | Dan Rock 1977 Winner, Pain, Tugs | No |
| 12 | Eli Cash 2002 Winner, Pain, Tugs | No |
| 13 | Elise Bernier | Cancel |
| 14 | Jennifer Cash 2002 Winner | No |
| 15 | Erin Merz 2008, 2010 Winner | No |
| 16 | Scott Brookens 2004 Winner | Yes |
| 17 | Jim Vance 2007, 2008 Winner | No |
| 18 | Wally Buckingham 1982, 1983 Winner, Pain, Tugs | No |
| 19 | Wayne Buckingham, Pain, Tugs | No |
| 20 | Dean "Deano" Spraque 2005, 2006 Winner | Yes |
| 21 | Rachel "Wills" Gordon 2009, 2011 Winner | Think So |
| 22 | Laura Kephart 2007 Winner | No |
| 23 | Dave Pain - race namesake | No |
| 24 | Brad Golden 2009, 2010 Winner | No |
| 25 | Chris Vargas, 2011 Winner | No |
| 26 | Russell Avery, 2012 Winner | No |
| 27 | Erin Farelly, 2012 Winner | Think so |
| 28 | Rick Menolez | Yes |
| 29 | Robert McCarthy | Yes |
| 30 | Glenn Stuart/Kevin Hackett(Team) - need runner | Yes |
| 31 | Dave Paz | Yes |
| 32 | Michelle Traher | Yes |
| 33 | Lois Yu | Yes |
| 34 | Pat Clancey(Team) - Need Runner | Yes |
| 35 | Lynn Trimble | Yes |
| 36 | Paula Fornes | Yes |
| 37 | Roger Lesczynski | Yes |
| 38 | Bessie Lesczynski | Yes |
| 39 | John Healy | Yes |
| 40 | Kevin Miller | Cancel |
| 41 | Catherine Lazarz | Yes |
| 42 | Julio Gonzalez | Yes |
| 43 | Mark Kenny | Yes |
| 44 | Jeremy Stromsoe | Yes |
| 45 | Steve Lahaie | Yes |
| 46 | Brannen Henn | Yes |
| 47 | Jill Witkowski | Yes |
| 48 | Mallory Watson | Yes |
| 49 | Heidi Monterrubio | Yes |
| 50 | Tim Price | Yes |
| 51 | Emily Saft | Yes |
| 52 | Kosuke Amano | Yes |
| 53 | Denny Shea/Kim Miller | Yes |
| 54 | Andrew Concors | Yes |
| 55 | Kyle Wills | Yes |
| 56 | Jon Hilbrich | Yes |
| 57 | Liz Salvato | Yes |
| 58 | Brenna Salvato | Yes |