IRL Arena™Points Systems for Multi-Sport Challenges: How to Set Fair Exchange Rates
Every multi-sport challenge eventually has the argument: a mile is not a mile. Sixty minutes in the pool and sixty minutes on a bike produce wildly different mileage, and if your scoring pretends otherwise, your challenge is a cycling race with spectators.
The fix is an exchange rate: points per mile (or per minute), set per activity. Here’s how to design one.
A starting table
The system our family challenge settled on, roughly calibrated to effort per mile:
| Activity | Points per mile |
|---|---|
| Biking | 1 |
| Walking | 2 |
| Running / Hiking | 3 |
| Swimming | 10 |
| Strength training | 1 per 10 minutes |
The logic: an easy hour yields maybe 12 miles on a bike, 3-4 on foot, and well under one in the pool. Weighting them 1 / 3 / 10 makes those hours roughly comparable — suddenly the swimmer, the runner, and the cyclist are in the same race.
Three ways to calibrate
- By time. Ask “what does an hour of honest effort yield in each sport?” and set rates so hours score similarly. Best all-around default.
- By energy. Calorie-per-mile estimates give similar ratios (running costs roughly 3× biking per mile; swimming roughly 8-10×). Good ammunition for the rules debate.
- By politics. Deliberately overpay the activities you want more of. Kids need incentive to swim? Swimming pays 12. Want grandma in the race? Walking pays 3. The scoreboard is policy — rig it for the outcome you want, openly.
Design rules worth keeping
- Whole numbers. “3 points a mile” survives dinner-table arithmetic; “2.7” doesn’t.
- Tune between periods, never mid-race. Adjusting rates mid-month is how challenges lose their government. Let a lopsided month finish, then amend.
- Every member should believe they can win. That’s the test of a fair table. If one person’s sport is obviously the meta, expect quiet attrition by week three.
- Write the rules down. The exchange rate is the challenge. Keep it where everyone can see it, next to the standings.
Let the scoreboard do the math
In IRL Arena, the exchange rate is just your arena’s settings: admins set points per mile or minute for each activity, and every logged activity scores by those rules automatically — same activity, different rates in different arenas. The race chart handles the drama from there.
Set your exchange rates — free.