| John Courtmanche: New Haven 20K Times |
| Predicted | ||||||
| Minimum | ||||||
| No. | Date | Time | Pace | Age | Time | Difference |
| 6 | September 5, 1983 | 1:26:00 | 6:55 | 40 | 1:12:16 | 13:44 |
| 7 | September 3, 1984 | 1:22:00 | 6:36 | 41 | 1:12:49 | 9:11 |
| 8 | September 2, 1985 | 1:24:00 | 6:46 | 42 | 1:13:27 | 10:33 |
| 9 | September 1, 1986 | 1:27:38 | 7:03 | 43 | 1:14:00 | 13:38 |
| 10 | September 7, 1987 | 1:25:30 | 6:53 | 44 | 1:14:37 | 10:53 |
| 11 | September 5, 1988 | 1:25:20 | 6:52 | 45 | 1:15:15 | 10:05 |
| 12 | September 7, 1989 | 1:20:50 | 6:30 | 46 | 1:15:48 | 5:02 |
| 13 | September 3, 1990 | 1:25:15 | 6:52 | 47 | 1:16:26 | 8:49 |
| 14 | September 2, 1991 | 1:23:30 | 6:43 | 48 | 1:17:03 | 6:27 |
| 15 | September 7, 1992 | 1:24:49 | 6:49 | 49 | 1:17:41 | 7:08 |
| 16 | September 6, 1993 | 1:25:30 | 6:53 | 50 | 1:18:18 | 7:12 |
| 17 | September 5, 1994 | 1:21:30 | 6:33 | 51 | 1:18:56 | 2:34 |
| 18 | September 4, 1995 | 1:19:33 | 6:24 | 52 | 1:19:33 | 0:00 |
| 19 | September 2, 1996 | 1:23:07 | 6:41 | 53 | 1:20:11 | 2:56 |
| 20 | September 1, 1997 | 1:24:20 | 6:47 | 54 | 1:20:52 | 3:28 |
| 21 | September 7, 1998 | 1:24:58 | 6:50 | 55 | 1:21:30 | 3:28 |
| 22 | September 6, 1999 | 1:33:32 | 7:32 | 56 | 1:22:11 | 11:21 |
| 23 | September 4, 2000 | 1:31:20 | 7:21 | 57 | 1:22:49 | 8:31 |
| 24 | September 3, 2001 | 1:27:30 | 7:02 | 58 | 1:23:30 | 4:00 |
| 25 | September 2, 2002 | 1:26:46 | 6:59 | 59 | 1:24:08 | 2:38 |
| 26 | September 1, 2003 | 1:25:38 | 6:53 | 60 | 1:24:50 | 0:48 |
| 27 | September 6, 2004 | 1:26:02 | 6:55 | 61 | 1:25:31 | 0:31 |
| 28 | September 5, 2005 | 1:27:38 | 7:03 | 62 | 1:26:13 | 1:25 |
| 29 | September 4, 2006 | 1:30:38 | 7:18 | 63 | 1:26:55 | 3:43 |
| 30 | September 3, 2007 | 1:31:28 | 7:22 | 64 | 1:27:36 | 3:52 |
| 31 | September 1, 2008 | 1:33:30 | 7:31 | 65 | 1:28:18 | 5:12 |
| 32 | September 7, 2009 | 1:31:51 | 7:23 | 66 | 1:29:04 | 2:47 |
| 33 | September 6, 2010 | 1:32:15 | 7:25 | 67 | 1:29:45 | 2:30 |
| 34 | September 5, 2011 | 1:38:15 | 7:54 | 68 | 1:30:27 | 7:48 |
| 35 | September 3, 2012 | 1:36:56 | 7:48 | 69 | 1:31:13 | 5:43 |
The predicted minimum times were computed on the aging part of this site: Aging in Sports and Chess. These calculations are based on a best time of 1:19:33 at age 52. This is John's personal best time and also his best time age corrected. His times at ages 60, 61, and 62 are very close to his personal best time age corrected. His age 66 and age 67 times are also quite good. |