Introducing RallyCards: Collectible Tennis Cards Earned With Match XP

Here is a problem with almost every tennis app, including earlier versions of ours. You log a match, you close the app, and there is no reason to open it again until the next hit. The XP you earn for playing piles up in a number that does nothing. RallyCards is what we built to give that number somewhere to go, and to give you a reason to open RallyHub on a rainy Tuesday when you are not playing.

What it is

RallyCards are limited-supply collectible cards. The first set, the Genesis Edition, is seven mascot characters, one for each of seven rarity tiers: Rally the Retriever, Topspin the Tiger, Lobby the Kangaroo, Smash the Bear, Volley the Fox, Court the Phoenix, and Ace the Eagle. Every card is finite, serial numbered, and carries a wax-seal Master Stamp on the back.

The important thing up front. RallyCards run entirely on XP, the points you earn for playing tennis. No real money. No crypto. No card costs a cent of real currency. You earn XP by recording matches, accepting hits, keeping streaks and hitting milestones, then you spend that XP on cards. That is the whole economy. If you never want to touch it, you can ignore it completely and it costs you nothing.

Where to find it

The catalogue at /cards. Browse every card, read its lore, and see how scarce it is.
Packs at /shop/packs. Spend XP to open a pack and pull random cards.
Your collection at /collection. Every card you own, grouped by rarity, plus your public Showcase.
The Card Market at /market. Player-to-player fixed-price listings, so a spare duplicate can find a new home.

The two ways to get a card

Packs are the main supply. You pick a pack on the packs page, pay the XP price, and open it to reveal a handful of random cards rolled against a published odds table. It is the cheap, lucky route in.

The second way is direct buy. Some cards carry a fixed XP price on their catalogue page. If you want a specific card and you have the XP, you tap the buy button and it mints straight into your collection. No luck involved. Direct-buy prices are static, so a card you have been saving for will not jump in price the week you can finally afford it.

Seven rarities, real scarcity

Every card sits in one of seven tiers, and every tier has a hard global cap on how many will ever exist:

Common caps at 1,000 copies
Uncommon caps at 500
Rare caps at 250
Epic caps at 125
Legendary caps at 50
Mythic caps at 25
One of One caps at exactly 1

Once a tier sells out, it is gone. It does not reprint. The One of One is a single card with a single owner, forever. Every card you mint also gets the next sequential serial number in its tier, so a Common #003 is genuinely rarer than a Common #847, and that serial follows the card through every sale.

Why we built it

Three reasons, in order of how much they mattered.

First, XP needed a sink. We hand out XP for the things we want to encourage, like recording matches and showing up to hits, but a points balance that only ever goes up stops meaning anything. A reason to spend XP makes earning it matter.

Second, we wanted a reason to open RallyHub between hits. Tennis is a few hours a week. The app should have a little something to come back to on the days you are not on court. Collecting is that something.

Third, honestly, we like trading cards. We grew up with them. A finite, serial-numbered set with real scarcity and hand-drawn art is just a nice thing to own, and building it was the most fun part of this month.

The fairness choices we made

Random packs can feel like a rip-off if the design is lazy. A few things we deliberately built so they never do:

A pity guarantee. Open ten packs in a row and pull nothing but Commons, and the tenth pack is guaranteed to give you at least an Uncommon. Bad luck has a ceiling.
Cascade, never a dud. If a pack roll lands on a tier that has already sold out, it cascades to the next available tier instead of giving you nothing. You always walk away with a card for your XP.
Static storefront prices. Direct-buy prices do not move. The card you are saving for stays the price it was when you started saving.
No pay-to-win. Cards do not affect your matches, your ranking, or anything competitive. They are collectibles. Owning Ace the Eagle does not make your backhand better.

One collectible flourish worth explaining. A card you own ticks up in displayed value by 2.5 percent each month from the day you minted it. That is a collectible mechanic, a nod to how real trading-card values drift over time, not an investment promise. The storefront itself stays still. We are not going to pretend cards are a savings account.

What is coming next

The Genesis Edition is the foundation. The next pieces on the roadmap:

Player-to-player trades. The Card Market handles fixed-price listings today. Direct one-for-one swaps, where you trade a card for a card with an optional XP top-up, are the next build. Both sides will see the full deal before anything changes hands.
More editions. Genesis is set one. There will be more sets, themed around seasons and milestones, each with its own art and its own caps.

How to actually try it tonight

Check your XP balance. You have probably earned more than you think just from recording matches.
Open the catalogue at /cards and find a card you like the look of.
Head to /shop/packs, pick a pack, and open it.
Visit /collection to see what you pulled, and pick three favourites for your public Showcase.

One small ask

The Card Market is only as good as the number of players listing and buying. If your tennis crew is not on RallyHub yet, drop us a message and we will sort them an invite. A trading set is more fun with people to trade against.

This was the most enjoyable thing we have built on RallyHub so far. We hope chasing a clean low serial of Court the Phoenix becomes one of those small habits that keeps you coming back.

Cheers, the RallyHub team

Quick context if you are new here: RallyHub is an Australian social tennis platform built by two brothers. Invite-only beta. More blog posts here.