London Olympic champ Jenn Suhr is sure having fun in her geezerhood. At 36, almost old enough to be a mother to some rivals, she won the Pre Classic vault Saturday with a W35 world record of 4.85 meters (15-11), upping her own listed WR of 4.83 (15-10) from a year ago. Social media didn’t seem to notice the age-group record. But WMA, bless its little heart, called attention to the mark on its coming-of-age Twitter feed. The WMA site breathlessly announced: “Thats (sic) right, breaking news coming out of Eugene at the IAAF diamond league is that Jennifer Suhr…