The questions parents actually ask.

First season, all-in — electronics, battery gear, tools you don’t already own, printing — roughly $150–340 depending on the design and whether you own a printer. The parts page itemizes every dollar, including the three no-printer options. After the first season, most of that carries over; a second robot costs a fraction.

Event entry fees are kept low and published per event. There is no league membership fee.

A first bot is about 4 weeks of a-few-hours-a-week following the 30-day path — comparable to a school project, not a varsity sport. Event days run roughly 9am–4pm. Between events, repair and iteration time is whatever your builder wants it to be (fair warning: often a lot, voluntarily).

These are the same lithium-polymer batteries inside RC cars and drones — safe when handled with a routine, genuinely hazardous when abused. The routine is short and non-negotiable, and it is the same one enforced at events:

• Store and charge in a LiPo-safe bag (fireproof pouch, ~$10 — it’s on the parts list).
• Never charge unattended. Charging happens while someone is in the room, on a hard surface, away from anything flammable.
• Retire damaged batteries. Puffed, dented, or torn-wrap batteries don’t get a second chance — dispose at a battery recycling point, never the trash.
• Middle schoolers handle batteries only with an adult — that’s a league rule at events, and we recommend the same at home.

The robot itself is never powered at home — all powered testing happens in containment (test box policy). Un-powered building at the kitchen table is exactly how this is meant to work.

Less than you’re tempted to. The league rule: students design, build, repair, and drive. Adults mentor and supervise safety. Middle schoolers may get hands-on help with exactly two things — soldering and battery handling — with the student actively involved. High schoolers: adults don’t touch the robot at all. A parent-built robot teaches a kid that their own work wasn’t good enough; we’d rather they lose with their own bot than win with yours.

Arrive, check in, weigh the robot, pass safety inspection (a staff member runs a published checklistwith your builder — it’s a teaching moment, not a gate). Then qualifying matches all morning — everyone fights multiple times regardless of record, nobody is one-and-done — a lunch break, elimination finals, awards.

You’ll mostly watch fights, cheer, and occasionally hold a flashlight in the pits. Matches are two minutes; robots are one pound; the arena is sealed polycarbonate. Spectating is genuinely fun — bring the siblings. An adult supervisor must be onsite the whole day for each student.

Fights happen inside a sealed arena; weapons are physically locked any time a robot is outside it; the pit area requires safety glasses for anyone working on bots. The safety ruleset is public — read it and you’ll know exactly as much as our referees expect of every competitor.

Yes — and not just vicariously. Select events run an OPEN division: all ages, standard SPARC rules, adults explicitly welcome. Build your own bot and enter it. Your kid stays in MS/HS with their own robot (those divisions are theirs alone), and you finally learn how hard driving actually is. Check each event listing for an OPEN division.

It’s the design. Every robot loses — often spectacularly, in front of a crowd — and then gets rebuilt better. The league’s XP systemnever subtracts points for a loss: a kid who goes 0–5 still earned XP, probably a badge, and a fight history they can study. The kids who stick around aren’t the ones who never lose; they’re the ones who learn that broken is fixable.