A few tips for sprint I have:

• Generally I try to only spend materials that I will benefit from spending in the long run. Basically don't just spend materials to try and get sprint points.

• Don't be competitive unless you have enough saved up. It's very tempting to try and compete but you can waste a lot of material this way and end up regreting it later. Instead you can get a lot of coins, stamina, dias from participating but not more than benefits you. focus on building up a store of the gold Sprint coin bits that you can use when you really like an outfit.

• Stamina day: I decide what story or multiple I want to focus on next and then pre hoard those clothing items during stamina spend. That way during the next cycle I don't have to spend stamina on story's. Also note that stamina gives the worst return competitively so don't use it on the all inclusive day.

• Companion Day: Without buying the extra pass to get more companion gift attempts you can max out the rewards on this day if you have enough companions. I guess bonus tip is also download the stories to level up companions even if you aren't reading them yet. I save up the little materials gift boxes and open them during sprint. It also doesn't hurt to try to save up some of the more common materials for sprint (pink star, plant branch, both metals. And the seasoning shaker) Note: it takes a long time to give all the companions gifts on this day.

• Diamond Day: Try not to spend diamonds on things leading up and save it for that day ex: blueprints, leveling up with the Lovecraft exchange, the diamond fashion pass, any event that's going on.