Gully Cards: a gully cricket app that rates your friends

Every gully team has one guy who swears he's the best player. Gully Cards settles it with his real numbers. You type in what he scored, how many balls he faced and what he did with the ball, and the app gives him a rated player card. The example player in the reel came out at 45.

It's Day 16 of a series where a spinner picks an app each week and I get one hour to build it with Claude. This week the spinner landed on gully player cards.

Every skill out of 99

The card breaks a player into separate skills, and each one becomes a score out of 99. Batting comes from runs per dismissal. Power comes from strike rate. Wickets come from wickets per over. The last one is how many runs he gives away per over when he bowls.

Together those make his overall, the big number in the corner of the card. A batter is judged mostly on batting, a bowler mostly on bowling, and an all-rounder on both. The point is that the overall comes from things that actually happened on the ground, not from what he says happened.

One lucky six is not a legend

The obvious way to break a rating app is a tiny sample. Someone faces one ball, hits it for six, and on paper he's the best batter you've ever seen. If the card trusted that, the whole thing would be a joke within a week.

So the app is careful with small numbers. Under 6 balls there's no rating at all, and the card just says he needs to actually play first. After that, every score is pulled back towards 50 until he has faced enough balls for the numbers to mean something. A player has to keep performing over many balls before his card climbs.

That one rule does most of the work of making the ratings feel fair. The friend who had one good day doesn't jump ahead of the friend who has been steady all season.

From the Day 10 scorer in one tap

Typing numbers in works, but most gully teams don't keep stats. That's why the Day 10 build matters here. If you already score your matches with my Day 10 app, Gully Cards can read those matches on the same phone. One tap and your whole squad gets cards, best player first.

The scorer saves every ball, so the cards are built from the real match, ball by ball, instead of from memory.

Reveal it, then send it

Each card starts face down. You tap to reveal it and the overall counts up. Then you can send him his card, which is really what the app is for. The number is the argument, and the card is how you start it in the group chat.

If you want to try it on your own team, comment CARD on the reel and I'll send you the app. And send it to the friend who thinks he's a 90.