Yesterday i had a monthly swimming competition in my city, had to swim 400 IM, before i swam 400 IM my PB was (5:16,09), but after I broke my PB practically by 9 seconds(5:07,28), crazy how still managed to swam this good, because my trainer said that my technique was such good but still I'm proud of myself, oh and i think the last time I swam 400 IM was 3 months ago