When you have four Olympic gold medals and three World Records, USA Swimming National Age Group Records aren’t exactly at the top of your resume.

But with a best time (and every best time in this event between now and May 10th, 2014) in the final of the women’s 100 meter free at the US World Championship Trials on Tuesday, Missy Franklin broke her own National Age Group Record.

Her 53.43 broke the old National Age Group Record of 53.52 from last year’s Olympics, and also broke Amanda Weir’s National Championship Meet Record of 53.58 from all the way back in 2006.

Franklin’s old record was set on the leadoff leg of the Americans’ bronze medal winning 400 free relay at last year’s Olympic Games. The comparative Splits:

Franklin ’12: 26.05 – 27.47

Franklin ’13: 26.08 – 27.35

This was a classic Franklin swim, saving things until the very end. Despite the race appearing to come from the middle of the pool, Franklin snuck in for the win and her first two World Championship qualifications.