The field of runners first reached 25,000 in 1980.   The AJC Peachtree Road Race has remained the world's largest 10K since the late 1970s.   In 1992, the field was expanded to 45,000. In 1994, the field was expanded to 50,000. More than 62,000 applicants vied for the spots within 48 hours of opening.   In 1998, the field was expanded to 55,000. Over 70,000 applicants applied for the spots within 24 hours of opening on March 15.   It takes approximately 3,000 volunteers to handle the race.   The 55,000 runners will burn 34 million calories running the 6.2 mile course.   There will be close to 600 portable toilets rented to accommodate the runners this year.   The fastest men's time in the AJC Peachtree Road Race is 27:04. The record was set by Kenya's Joseph Kimani in 1996.   The fastest women's time is 30:32 set by Lornah Kiplagat of Kenya in 2002.   Gayle Barron is the winningest athlete in the history of the AJC Peachtree Road Race. She won in the women's division in 1970, '71, '73, '74 and '75.   The coolest starting temperature on race day was 62 degrees in 1986 and 1989. The warmest was 80 degrees in 1970, '73, '77, ' 80, '83 and '91.   The record for the wheelchair division of the AJC Peachtree Road Race is held by Saul Mendoza with a time of 19:05. The women's division record holder is Jean Driscoll with a time of 23:13.   More than 500,000 recyclable paper cups and 65,000 bottles of water will be used during this year's race.   Approximately 120,000 gallons of water will be used race day.   A total of 20,249 extra-large T-shirts were ordered for the 2005 race, along with 5,432 small, 11,805 medium and 18,675 large.   In the 2006 event, the oldest male runner was 85 and the oldest female runner was 86.   In the 2006 event, there were 851 42-year-old male runners, the largest single age group, followed by 782 38-year-old female runners.