National 24-Hour Challenge Records
as of June 19, 2011
| Category
| MI
| KM
| Rider
| Home
| Year
| Overall Male
| 502.6
| 809
| Chris Ragsdale
| Seattle, WA
| 2007
| Overall Female
| 440.2
| 708
| Karen McKee
| Bowling Green, OH
| 2004
|
| M18-24
| 458.0
| 737
| Larry Optis
| Toronto, ON, Canada
| 2003
| M25-29
| 502.6
| 809
| Chris Ragsdale
| Seattle, WA
| 2007
| M30-34
| 494.8
| 796
| Chris Ragsdale
| Seattle, WA
| 2010
| M35-39
| 493.0
| 793
| Mark Skarpohl
| Mankato, MN
| 1996
| M40-44
| 476.0
| 766
| Mark Skarpohl
| Mankato, MN
| 2003
| M45-49
| 472.6
| 762
| Scott Luikart
| New Philadelphia, OH
| 2011
| M50-54
| 477.1
| 768
| David Stebbins
| Belmont, MI
| 2005
| M55-59
| 432.6
| 696
| Charles Knott
| Magnolia, OH
| 2010
| M60-64
| 403.4
| 649
| James Hlavka
| Racine, WI
| 2000
| M65-69
| 403.9
| 649
| David Thomsen
| Austin, MN
| 2007
| M70-74
| 396.4
| 638
| James Hlavka
| Racine, WI
| 2009
| M75+
| 357.7
| 577
| James Johnson
| North Canton OH
| 2011
|
| F18-24
| 335.0
| 539
| Mary Dekker
| Grand Rapids, MI
| 1998
| F25-29
| 415.0
| 668
| Jane Vanni
| Oak Park, IL
| 1990
|
| 415.0
| 668
| Sue Curfman
| Cambridge, MA
| 1991
| F30-34
| 403.0
| 649
| Ginny Schierbeek
| Grand Rapids, MI
| 1987
| F35-39
| 416.5
| 670
| Laura Johnson
| Ann Arbor, MI
| 2005
| F40-44
| 440.2
| 708
| Karen McKee
| Bowling Green, OH
| 2004
| F45-49
| 403.0
| 649
| Connie Barnes
| Verona, WI
| 1995
|
| 403.0
| 649
| Deborah Banks
| Newton, NJ
| 1996
| F50-54
| 393.0
| 632
| Connie Barnes
| Verona, WI
| 1998
| F55-59
| 366.4
| 590
| Nancy Guth
| Stafford VA
| 2009
| F60-64
| 341.2
| 549
| Mary Florian
| Lumberton, NC
| 2010
| F65-69
| 227.8
| 367
| Lynda Merrill-Bruce
| Bay City, MI
| 2009
| F70-74
| 250.3
| 404
| Lynda Merrill-Bruce
| Bay City, MI
| 2011
| F70-74
| 250.3
| 404
| Lynda Merrill-Bruce
| Bay City, MI
| 2011
|
| Tandem M/F
| 444.3
| 715
| Adrian Harris
Jo Ann Grosbeck
| Somerville, NJ
Somerville, NJ
| 1999
| Tandem M/M
| 457.0
| 735
| Ron Dossenbach
Michael White
|
Windsor, ON, Canada
Cincinnati, OH
| 1992
| Tandem F/F
| 301.0
| 484
| Char Terpsma
Sally Terpsma
| Kentwood, MI
Holland, MI
| 1990
| Solo Recumbent
| 487.6
| 785
| John Schlitter
| St Petersburg, FL
| 2011
| Tandem Recumbent
| 301.6
| 485
| Justin Hendges
Todd Antrim
| Grand Rapids, MI
Fife Lake, MI
| 2005
| Father/Son
| 840.2
| 1259
| 420.1 - Charles Knott
420.1 - Matthew Knott
| Magnolia, OH
Stow, OH
| 2011
| Father/Daughter
| 675.2
| 1355
| 374.2 - Kenneth Scott
301.0 - Janet McGettigan
| Muskegon, MI
Muskegon, MI
| 2010
| Mother/Son
| 584.0
| 940
| 229.0 - Mary DeGraaf
355.0 - David DeGraaf
| Grandville, MI
Rockford, MI
| 1997
| Mother/Daughter
| 574.4
| 924
| 249.1 - Nancy Lange
325.3 - Laura Melendez
| Wyoming, MI
Grand Rapids, MI
| 2005
| Husband/Wife
| 773.0
| 1244
| 386.5 - Nancy Guth
386.5 - John Guth
| Stafford, VA
Stafford, VA
| 2005
| Sibling/Sibling
| 847.0
| 1363
| 443.6 - Tom Trout
403.4 - Jim Trout
| Byron Center, MI
E Grand Rapids, MI
| 2011
| | Family (average) | 374.5
| 603 | 354.6 - Joseph Busch
437.9 - Michael Busch
330.2 - Matthew Busch
| Richfield, MN
Mankato, MN
Mankato, MN
| 2000 | Senior (79)
| 96.2
| 155
| Richard Lawrence
| Lexington NC
| 2006
|
|
