Sportovní kolo
Náhodné sporty pro fyzickou aktivitu
- Fotbal
- Basketbal
- Tenis
- Plavání
- Běh
- Cyklistika
- Golf
- Baseball
Sports Wheel — A Random Picker for Which Sport or Workout to Do Today
Can't decide what to play or how to train? Type in your sports, your drills, or the gear you've got, then spin. The wheel hands you one — and the deciding is done. Cryptographically random, works offline, no signup.
From the PE gym to the driveway hoop — a faster way past 'I don't know, what do you want to do?'
Proč zvolit wheel.expert?
Beat the Same-Workout Rut
You know the trap: you walk into the gym and default to the treadmill again. Load a list of everything you'd actually do — rowing, kettlebells, a swim, a long ride — and let the wheel assign today's session. Variety, decided for you.
Spins in the Gym With No Signal
Locker rooms and field houses eat WiFi. This installs as a web app and runs with zero connection, so a coach on a back field or a kid in the basement can still spin for the next drill.
Load the Sports You Can Actually Play
No point spinning 'surfing' if you're landlocked. Wipe the presets and type only what fits your space and gear — half-court, a jump rope, a park, two cones. The wheel spins your real options, nothing else.
End the Pickup-Game Standoff on the Spot
Six friends at the park, six opinions on what to play. It loads fast and works by touch, so 'basketball or ultimate?' gets settled before anyone loses interest and drifts home.
Every Sport, Equal Odds
Some random pickers quietly lean. This one draws from the Web Crypto API — the same randomness browsers use for security — so the sport nobody volunteers for has exactly the same shot as everyone's favorite.
Free, No Account
Nothing's paywalled, nothing's emailed, nothing's stored. Open it on the sideline, spin it, get moving.
How to Use the Sports Wheel
List Your Sports or Exercises
Start from the preset spread of soccer, basketball, swimming and the rest, or clear it and type your own. 'Tennis,' 'burpees,' '5K run,' 'rock climbing' — anything you'd put your body through goes on.
Tune It to the Day
Add as many activities as you want, rename them, drop the ones that don't fit. A wheel of indoor bodyweight moves looks nothing like a wheel of team sports — match it to where you are and who's there.
Spin
Tap the center. The wheel turns, slows, and lands on one sport — picked by the algorithm, not by whoever's loudest in the group.
Go Play, or Build a Circuit
Take the result and start moving. Or remove it and spin again to stack a multi-station workout — sprint, then jump rope, then planks. Past picks stay in the history panel.
What People Actually Use the Sports Wheel For
PE Class 'Which Sport Today'
Instead of running the same unit on a loop, teachers load a term's worth of activities and spin the day's focus on the projector. Kids buy in more when the wheel calls it, not the adult.
Killing Gym Boredom
Doing the same routine until you quit is the oldest fitness failure there is. Spin a random session to break the pattern, and you train muscles your defaults always skip.
Kids' Active-Play Rotation
Antsy kids, a backyard, no plan. Load tag, hopscotch, jump rope, an obstacle course and a soccer kickabout, and spin the next ten-minute burst whenever the energy dips.
Trying a New Sport
Stuck in a one-sport groove? Load a shortlist of things you've never tried — pickleball, bouldering, kayaking, table tennis — and let the wheel commit you to one this month.
Cross-Training Randomizer
Athletes who train one discipline need variety to stay healthy. Spin a complementary activity on off days so recovery work stops feeling like a chore you keep postponing.
Why This Beats Arguing — or a Generic Random Picker
Real Randomness, Not a Rigged Spin
Your Activities, Not a Fixed List
No Account, No Upsell
Připraveni roztočit kolo?
Přidejte se k tisícům lidí, kteří se každý den rozhodují férově a náhodně.
Skutečně náhodný výběr – jak funguje náš algoritmus
Na rozdíl od mnoha spinnerů, které používají Math.random(), wheel.expert používá Web Crypto API (crypto.getRandomValues()) pro generování kryptograficky bezpečných náhodných čísel. Je to stejné API, které používají kritické aplikace, jako jsou generátory hesel.
Web Crypto API (CSPRNG)
Používáme crypto.getRandomValues(), Cryptographically Secure Pseudo-Random Number Generator (CSPRNG) zabudovaný do všech moderních prohlížečů. To poskytuje vysoce kvalitní náhodnost z fondu entropie prohlížeče, výrazně lepší než předvídatelná Math.random().
Algoritmus nestranného výběru
Když mají všechny položky stejnou váhu, používáme vzorkování odmítnutí, abychom eliminovali zkreslení modulu – běžný problém při náhodném výběru. Tím je zajištěno, že každý záznam má matematicky stejnou šanci, že bude vybrán. U vážených záznamů jsou pravděpodobnosti úměrné přiřazeným vahám.
Transparentnost na straně klienta
Veškerý náhodný výběr probíhá ve vašem prohlížeči v době roztočení. Kód je otevřený a lze jej zkontrolovat pomocí nástrojů DevTools prohlížeče. Pro velké dárky doporučujeme nahrávání obrazovky během zatočení jako důkaz férovosti vůči vašemu publiku.
🔍 Ověřte si to sami: Otevřete DevTools (F12) a zkontrolujte naše generování náhodných čísel v konzole. Používáme window.crypto.getRandomValues() – stejné kryptografické API, které používají banky a bezpečnostní aplikace.
Casi d'Uso Popolari
- ✓Výběr tréninku
- ✓Týmové sporty
- ✓Fitness výzvy
- ✓PE činnosti
- ✓Sportovní den
Často kladené dotazy
Yes. Clear the presets and type whatever you'd actually do — 'pickleball,' 'kettlebell swings,' 'beach volleyball,' '400m repeats.' The wheel only spins the activities you load, so a landlocked list never lands you on surfing.
It is. The picker pulls from the Web Crypto API, the same randomness source browsers use for security keys, so the drill nobody likes has the same odds as the crowd favorite. No hidden weighting toward the easy stuff.
Spin once, hit 'remove winner,' and spin again. Each pick drops out of the next round, so four or five spins give you a no-repeat circuit — say, sprints, then planks, then jump rope, then a cooldown stretch.
It does. The sports wheel installs as a progressive web app, so once it's loaded it runs offline — useful on a back field, in a gym with dead WiFi, or at a park with no signal at all.
Plenty do. Load the term's activities, put it on the projector, and spin the day's sport in front of the class. Letting the wheel decide cuts the 'why not soccer again' arguments and gets everyone moving sooner.
Then load just those. A two- or three-option wheel works fine, and the slow wind-down still makes the result feel like a real call — better than a coin flip when it's tennis, a run, or a rest you're torn between.