| Apr 16, 1960 – Gert Potgeiter of South Africa runs WR 440y hurdles on his 23rd birthday |
| Apr 16, 1979 – 21-year-old Joan Benoit wins Boston Marathon in American Record 2:35:15 |
| Apr 16, 2018 – Desi Linden wins Boston Marathon in ‘noreaster, first U.S. woman champ since 1985 |
| Apr 16, 2018 – Yuki Kawauchi wins Boston Marathon, first Japanese man to win since 1987 |
| Apr 17, 1948 – Charles Fonville sets World Record shot put with 58-3/8 at Kansas Relays |
| Apr 17, 1948 – Harrison Dillard sets World Record 120-yard hurdles at 13.6 at Kansas Relays |
| Apr 17, 1972 – Nina Kuscsik is 1st official female winner of Boston Marathon in 3:10:26 |
| Apr 17, 1978 – Steve Williams runs World Record 200 meters in 19.9 at Florida Relays |
| Apr 17, 1978 – Bill Rodgers wins his 2nd Boston Marathon in 2:10:13 by two seconds over Jeff Wells |
| Apr 17, 1978 – Five-time Peachtree 10k champ, Gayle Barron, wins Boston Marathon in 2:44:52 |
| Apr 17, 1983 – Grete Waitz wins London Marathon with her 4th World Record in 2:25:28 |
| Apr 17, 1988 – Belayneh Dinsamo wins Rotterdam Marathon in World Record 2:06:50 – first sub-2:07 |
| Apr 17, 1994 – Santa Monica Track Club (Marsh, Burrell, Heard, Lewis) runs WR 4x200m in 1:18.68 |
| Apr 18, 1983 – Joan Benoit wins Boston Marathon in World Best 2:22:43 |
| Apr 18, 1987 – Joe Dial gets his 6th of eight U.S. Record pole vaults at 19-4 ¾ at Kansas Relays |
| Apr 18, 1988 – Ibrahim Hussein is 1st African Boston marathon champ in 2:08:43, Juma Ikangaa 2:08:44 |
| Apr 18, 1988 – Portugal’s Rosa Mota wins second straight Boston Marathon in 2:24:30 |
| Apr 18, 1994 – Uta Pippig wins first of ‘three-peat’ Boston Marathons in World Best 2:21:45 |
| Apr 18, 1994 – Kenya’s Cosmas Ndeti wins 2nd straight Boston Marathon in Course Record 2:07:15 |
| Apr 18, 2005 – Kenya’s Catherine Ndereba wins her 4th Boston Marathon in six years in 2:25:13 |
| Apr 18, 2011 – Kenya’s Geoffrey Mutai (2:03:02) and Moses Mosop (2:03:06) fastest ever at Boston |
| Apr 18, 2011 – Ryan Hall’s runs U.S. Record 2:04:58 for third place at Boston Marathon |
| Apr 18, 2011 – Kenya’s Caroline Kitel nips Desi Davila by two seconds to win Boston in 2:22:36 |
| Apr 19, 1897 – John McDermott of New York wins inaugural Boston Marathon |
| Apr 19, 1930 – Clarence DeMar wins his record seventh Boston Marathon |
| Apr 19, 1947 – Korea’s Yun Bok Suh wins Boston marathon in World Record 2:25:39 |
| Apr 19, 1966 – Bobbi Gibb is first woman to run and finish the Boston Marathon |
| Apr 19, 1998 – Tegla Laroupe wins Rotterdam Marathon in World Record 2:20:43 |
| Apr 20, 1970 – Ron Hill wins Boston Marathon in fastest time ever in U.S. 2:10:30 |
| Apr 20, 1985 – Carlos Lopes wins Rotterdam Marathon in World Record 2:07:12 |
| Apr 21, 1895 – First Penn Relays Track and Field meet held |
| Apr 21, 1975 – Liane Winter wins Boston Marathon in World Record 2:42:24 |
| Apr 21, 1980 – Bill Rodgers wins his fourth Boston Marathon in 2:12:11 |
| Apr 21, 1985 – Ingrid Kristiansen wins London Marathon in World Record 2:21:06 |
| Apr 23, 1920 – Charles Paddock sets World Record in 100 meters at 10.4 seconds |
| Apr 23, 2006 – Deena Kastor wins London Marathon in 2:19:36 U.S. Record |
| Apr 24, 2010 – Usain Bolt anchors Jamaica’s 4x100 meter relay to Penn Relays record 37.90 |
| Apr 27, 1957 – Bob Gutowski breaks 15-year old World Record in pole vault with 15-8 1/4 |
| Apr 29, 2000 – Michael Johnson anchors USA 4x400 meter relay to Penn Relays record 2:56.60 |
| Apr 30, 2011 – Felix and Jeter pace USA women’s 4x100m relay to Penn Relays record 42.28 |