| 1951 | 18 Apr 26 | 30 For Freedom - La Crosse | 5K/10K/13.1M/30M | La Crosse, WI |
| 1952 | 04 Jul 26 | Rancho Hills Trail Run | 5K/10K/13.1M/30K/26.2M/50K | Morgan Hill, CA |
| 1953 | 26 Jul 26 | Kensington Aloha Runs | 5K/10K/13.1M/30K | Milford, MI |
| 1954 | 11 Apr 26 | Martian Invasion of Races | 5K/10K/13.1M/26K/26.2M | Dearborn, MI |
| 1955 | 25 Jul 26 | Maah Daah Hey Trail Run | 5K/10K/13.1M/26.2M/56M/81M/107M | Medora, ND |
| 1956 | 01 Aug 26 | ET Full Moon | 5K/10K/13.1M/26.2M/51K | Rachel, NV |
| 1957 | 16 May 26 | Dances With Dirt - Gnaw Bone | 5K/10K/13.1M/26.2M/50K/100K | Nashville, IN |
| 1958 | 08 Aug 26 | Baby Backyard 5K - 50K ULTRA | 5K/10K/13.1M/26.2M/50K | Maple Grove, MN |
| 1959 | 02 May 26 | Sunshine Double | 5K/10K/13.1M/26.2M/50K | Winter Park, FL |
| 1960 | 18 Jul 26 | Bob Marshall Trail Race | 5K/10K/13.1M/26.2M/50K | Seeley Lake, MT |
| 1961 | 18 Apr 26 | Gulf Coast Grind | 5K/10K/13.1M/26.2M/50K | Surfside Beach, TX |
| 1962 | 27 Jun 26 | Independence Double | 5K/10K/13.1M/26.2M/50K | Winter Park, FL |
| 1963 | 11 Apr 26 | Next Loop Endurance Series - New England | 5K/10K/13.1M/26.2M/50K | Wrentham, MA |
| 1964 | 06 Jun 26 | Texoma Challenge | 5K/10K/13.1M/26.2M/50K | Denison, TX |
| 1965 | 07 Jun 26 | Cedar Rapids Marathon Weekend | 5K/10K/13.1M/26.2M | Cedar Rapids, IA |