TWO DIVISIONS.
ONE SCALE.
The Showdown is the one rental race we run in two weight divisions. Lightweight sets its bar at 180 lb, Heavy at 210 lb, and both of those are minimums you have to meet, not limits you have to stay under. If you come in under the number, we bolt lead into the seat until you make it. Nobody is too heavy to race here, and nobody is too light either.
WHERE DO YOU FIT?
Slide your weight and see it. This is the same math we do at the counter on race night, just without the queue behind you.
At 165 lb you race Lightweight, level with the whole division once your lead is in.
We bolt 15 lb into the seat at check-in and you cross the scale at 180 lb, dead level with everyone else in the division.
The bigger field, and where most first-timers land.
That is more than the 40 lb of lead we carry, so this division is not an option at this weight.
Not available at this weight.
That is the whole point of the lead. Everyone in a division leaves the scale at the same number, so a light driver has no free speed and a heavy driver is not hauling a penalty. What is left is the driver. The flip side is worth knowing before you pick: lead puts you exactly on a minimum, but clearing one on your own means every pound over it is a pound nobody else in that division is carrying. The division you want is the one whose minimum sits at or just above your weight.
We weigh you in your gear at check-in, so the scale usually reads a few pounds over the number on your bathroom scale, and you need that much less lead.
HOW THE NIGHT RUNS.
Gear handed out, then you step on the MCKplex scale wearing it. Any lead you need is bolted into the seat right there.
Mandatory. Flags, passing etiquette, pit lane, and how the night's grid gets set.
Your single fastest lap sets your starting spot in the heat. Divisions run separately.
Wheel to wheel with your division. Where you finish sets the grid for the feature.
The one that counts. Championship points to the finishers, and a champion per division at the end of the mini-season.
Same kart all night, no swaps · Gear and a season headsock included · Divisions score their own championship
THE WEIGHT QUESTIONS.
I weigh less than 180. Can I still race?
Yes, that is exactly what the lead is for. We add up to 40 lb of lead to the kart to bring you up to your division's minimum. A 155 lb driver runs the Lightweight Division with 25 lb bolted in.
So the divisions are not a weight limit?
No, and this is the part that trips everyone up. 180 and 210 are minimums you have to meet at the scale, not ceilings you have to stay under. Nobody is ever too heavy for a division. You can only be too light, and lead fixes that.
I am between 180 and 210. Which one do I race?
Your choice, and it is worth thinking about. Lightweight lets you race at your natural weight, but you would be carrying more than the 180 lb minimum the lead-ballasted drivers hit, and that is a penalty. Heavy puts lead in your seat to bring you to exactly 210, dead level with that whole grid. Even fight, heavier grid.
Does the lead make the kart handle badly?
You will feel it, and every driver in your division feels the same thing. Lead mounts low on the seat, which keeps the kart planted. It is the standard way weight is equalized in karting at every level, not a rental-track workaround.
Do I get weighed every week?
Every race night, in your gear, before you go out. It takes a few seconds and it is what keeps the championship honest.
Is this different from the Saturday R&R rental class?
Yes. The R&R Series rental class runs as one combined class in 2026, with no Light and Heavy split. The Wednesday Fast Track Showdown is the format that splits into two divisions.
GET ON THE
GRID.
Twenty-five spots per division, four Wednesdays a season. Bring the lead question to the counter and we will sort it in about a minute.