| The Annual Mother Nature Classic | ||||
| Participants | ||||
| 1st - 1989 | 2nd - 1990 | 3rd - 1991 | 4th - 1992 | 5th - 1993 |
| Bob Angel | Bob Angel | Bob Angel | Bob Angel | Bob Angel |
| Gary Brown | Dan Awsumb | Garth Boyd | Garth Boyd | Tim Cavers |
| Tim Cavers | Tim Bagford | Gary Brown | Gary Brown | TJ Cope |
| Mike Foster | Gary Brown | Tim Cavers | Tim Cavers | Mike Foster |
| Dave Germann | Jim Clemens | TJ Cope | TJ Cope | John Hilgeman |
| John Hilgeman | TJ Cope | Brad Craig | Brad Craig | Gary Jacobs |
| Gary Jacobs | Brad Craig | Ron Dement | Ron Dement | Tom Keltner |
| Tom Keltner | Mike Foster | Barry Einhorn | Barry Einhorn | Ken Peterson |
| Paul Slagle | Joe Gabbert | Mike Foster | Mike Foster | Steve Scherger |
| John Hilgeman | John Hilgeman | John Hilgeman | Paul Slagle | |
| Bill Hummel | Gary Jacobs | Gary Jacobs | ||
| Gary Jacobs | Tom Keltner | Tom Keltner | ||
| Ken Peterson | Ken Peterson | Tim Missall | ||
| Steve Scherger | Paul Slagle | Ken Peterson | ||
| Paul Slagle | Mike Walpole | Steve Scherger | ||
| Paul Slagle | ||||
| Mike Walpole | 10th - 1998 | |||
| Bob Angel | ||||
| 6th - 1994 | 7th - 1995 | 8th - 1996 | 9th - 1997 | Calvin Barber |
| Bob Angel | Bob Angel | Bob Angel | Bob Angel | Rich Boucher |
| Steve Bachmann | Calvin Barber | Tim Cavers | Rich Boucher | Tim Cavers |
| Calvin Barber | Tim Cavers | Jim Clemens | Tim Cavers | TJ Cope |
| Tim Cavers | TJ Cope | TJ Cope | TJ Cope | Mike Foster |
| Jim Clemens | Mike Foster | Mike Foster | Mike Foster | Bryan Graupmann |
| TJ Cope | John Hilgeman | TM Harover | John Hilgeman | John Hilgeman |
| Mike Foster | Rob Hoeting | John Hilgeman | John Manion | Gary Jacobs |
| John Hilgeman | Gary Jacobs | Rob Hoeting | Pete Mikelson | Tom Keltner |
| Gary Jacobs | Tom Keltner | Gary Jacobs | Ed Mustacato | Doug Mazurek |
| Tom Keltner | Kevin Logemann | Tom Keltner | Jeff Severino | Ed Mustacato |
| Ed Mustacato | John Manion | Kevin Logemann | Paul Slagle | Pete Mikelson |
| Ken Peterson | Pete Mikelson | Pete Mikelson | Bill Ward | Ken Peterson |
| Steve Scherger | Ed Mustacato | Ed Mustacato | Steve Scherger | |
| Jeff Severino | Jeff Severino | Jeff Severino | Jeff Severino | |
| Dave Spencer | Paul Slagle | Paul Slagle | Paul Slagle | |
| Dave Spencer | Bill Smith | |||
| 11th - 1999 | 12th - 2000 | 13th - 2001 | 14th - 2002 | 15th - 2003 |
| Bob Angel | Bob Angel | Bob Angel | Bob Angel | Bob Angel |
| TJ Cope | Rich Boucher | Tim Cavers | Calvin Barber | Calvin Barber |
| John Hilgeman | TJ Cope | TJ Cope | Tim Cavers | Daniel Cope |
| Gary Jacobs | Mike Foster | Mike Foster | TJ Cope | TJ Cope |
| Jim Kelly | Steve Goad | Steve Goad | Bryan Graupmann | John Hilgeman |
| Tom Keltner | Bryan Graupmann | Herley Hatfield | Herley Hatfield | Mike Hughes |
| Doug Mazurek | John Hilgeman | John Hilgeman | John Hilgeman | Jim Kelly |
| Ed Mustacato | Will Hummel | Gary Jacobs | Mike Hughes | Kevin Logemann |
| Steve Scherger | Jim Kelly | Jim Kelly | Tom Keltner | Mark Luft |
| Jeff Severino | Tom Keltner | Tom Keltner | Kevin Logemann | Doug Mazurek |
| Paul Slagle | Doug Mazurek | Doug Mazurek | Mark Luft | Ed Mustacato |
| Bill Smith | Ed Mustacato | Ed Mustacato | Doug Mazurek | Rich Salwan |
| Bill Ward | Steve Scherger | Chuck Schroll | Chuck Schroll | Jeff Severino |
| Jeff Severino | Jeff Severino | Jeff Severino | Paul Slagle | |
| Paul Slagle | Paul Slagle | Paul Slagle | ||
| Bill Smith | ||||
| 20th - 2008 | ||||
| 16th - 2004 | 17th - 2005 | 18th - 2006 | 19th - 2007 | Bob Angel |
| Bob Angel | Bob Angel | Bob Angel | Bob Angel | Gary Brown |
| Calvin Barber | Calvin Barber | TJ Cope | Tim Cavers | Calvin Barber |
| Jim Caulfield | Daniel Cope | John Hilgeman | TJ Cope | TJ Cope |
| Tim Cavers | TJ Cope | Tom Keltner | Chuck Fiorelli | Steve Goad |
| Daniel Cope | John Hilgeman | Mark Luft | Herley Hatfield | Herley Hatfield |
| TJ Cope | Tom Keltner | Chuck Schroll | John Hilgeman | John Hilgeman |
| Herley Hatfield | Mark Luft | Gregg Schwerdt | Tom Keltner | Tom Keltner |
| John Hilgeman | Doug Mazurek | Jeff Severino | Mark Luft | Mark Luft |
| Chuck Schroll | Rich Salwan | Paul Slagle | Doug Mazurek | Doug Mazurek |
| Jeff Severino | Chuck Schroll | Rich Salwan | Rich Salwan | |
| Paul Slagle | Gregg Schwerdt | Chuck Schroll | Chuck Schroll | |
| Jeff Severino | Gregg Schwerdt | Jeff Severino | ||
| Paul Slagle | Paul Slagle | |||
| 21th - 2009 | 22nd - 2010 | 23rd - 2011 | 24th - 2012 | 25th - 2013 |
| Bob Angel | Bob Angel | Bob Angel | Bob Angel | Bob Angel |
| Calvin Barber | Tim Cavers | Dave Callsen | Dave Callsen | TJ Cope |
| TJ Cope | TJ Cope | Tim Cavers | Jim Caulfield | John Hilgeman |
| Steve Goad | Herley Hatfield | TJ Cope | TJ Cope | Doug Mazurek |
| Herley Hatfield | John Hilgeman | John Hilgeman | Herley Hatfield | Tim McAdams |
| John Hilgeman | Tom Keltner | Tom Keltner | John Hilgeman | Rich Salwan |
| Tom Keltner | Mark Luft | Mark Luft | Doug Mazurek | Jeff Severino |
| Mark Luft | Doug Mazurek | Doug Mazurek | Tim McAdams | Paul Slagle |
| Doug Mazurek | Tim McAdams | Rich Mealey | Gregg Schwerdt | |
| Gregg Schwerdt | Rich Salwan | Gregg Schwerdt | Jeff Severino | |
| Jeff Severino | Gregg Schwerdt | Jeff Severino | Paul Slagle | |
| Paul Slagle | Jeff Severino | Rich Salwan | ||
| Paul Slagle | Paul Slagle | |||
| 26th - 2014 | 27th - 2015 | |||
| Bob Angel | Bob Angel | |||
| TJ Cope | Kevin Armour | |||
| John Hilgeman | TJ Cope | |||
| Doug Mazurek | Mike Foster | |||
| Tim McAdams | John Hilgeman | |||
| Rich Salwan | Mark Luft | |||
| Jeff Seaton | Doug Mazurek | |||
| Jeff Severino | Tim McAdams | |||
| Paul Slagle | Rich Salwan | |||
| Chuck Schroll | ||||
| Gregg Schwerdt | ||||
| Jeff Seaton | ||||
| Paul Slagle | ||||