Personally, I'd backload the night before, and do some “slower carbs” like 2 hours before your meet so you have some blood sugar readily available.

For athletic events, the following recommendation is usually made:-  Consume carbs the night before.  A Carb Nite is usually preferred rather than a backload.-  The morning the day of the event, consume a breakfast with a hefty amount of carbs and fat.  Get a little bit of protein in too.  Eggs and hashbrowns are a good meal.  Make sure you have 3 hours to digest the food before you start warming up.-  You can skip the breakfast if you perform better on a empty stomach.-  If the event lasts all day, consume low glycemic carbs and protein throughout the day.  Make sure the food is easily digested.Performing is different than training, so the nutrition is different too.

For athletic events, the following recommendation is usually made:-  Consume carbs the night before.  A Carb Nite is usually preferred rather than a backload.-  The morning the day of the event, consume a breakfast with a hefty amount of carbs and fat.  Get a little bit of protein in too.  Eggs and hashbrowns are a good meal.  Make sure you have 3 hours to digest the food before you start warming up.-  You can skip the breakfast if you perform better on a empty stomach.-  If the event lasts all day, consume low glycemic carbs and protein throughout the day.  Make sure the food is easily digested.Performing is different than training, so the nutrition is different too.

On that note, this is how you personally approach meet day, correct?

Correct, this is old advice from Kiefer.  I bet it's slightly different now, but this always worked really well for myself.I'd imagine you could apply this to any high intensity sport.

For athletic events, the following recommendation is usually made:-  Consume carbs the night before.  A Carb Nite is usually preferred rather than a backload.-  The morning the day of the event, consume a breakfast with a hefty amount of carbs and fat.  Get a little bit of protein in too.  Eggs and hashbrowns are a good meal.  Make sure you have 3 hours to digest the food before you start warming up.-  You can skip the breakfast if you perform better on a empty stomach.-  If the event lasts all day, consume low glycemic carbs and protein throughout the day.  Make sure the food is easily digested.Performing is different than training, so the nutrition is different too.

On that note, this is how you personally approach meet day, correct?

Correct, this is old advice from Kiefer.  I bet it's slightly different now, but this always worked really well for myself.I'd imagine you could apply this to any high intensity sport.

O.o srs?If your good shape I imagine 100-200 meter is like 95% creatine-ATP system and little to nothing to do with glycogen.  I run sprints myself and did plenty of 100-200 while on carb nite just fine.  I also remember reading about the whole >30 grams carbs helps you workout harder and have better focus in one of kiefer's articles about avoiding preworkout carbs and i figured it applied to HITT too.

ATP is synthesized from glycogen, so you are incorrect when you say it has little to do with glycogen.  It actually has a lot to do with glycogen because this is a very inefficient process that consumes a lot of glycogen.  You will not be able to achieve max power production with low glycogen stores.Also note that I recommended ingesting the carb meal 3 hours before the event, this allows for insulin and blood sugar levels to return to normal.  Consuming carb throughout the event is not ideal, but sometimes they last so long you don't have a choice but to eat.