Judging

How Judges Decide Debate Rounds

Judges do not tally arguments — they weigh them. Understanding how that weighing works is the fastest way to stop winning on the flow and losing on the ballot.

Claim, warrant, impact

A complete argument has three parts: a claim (what’s true), a warrant (why it’s true), and an impact (why it matters).

A claim asserted with no warrant is much weaker than one that’s actually explained — treat them differently even if both go technically "unanswered."

Weighing mechanisms

When both sides have valid impacts, standard lenses for comparing them include: magnitude (how big), probability (how likely), timeframe (how soon), reversibility (can the harm be undone), and scope (how many affected).

Debaters who explicitly weigh their impact against the other side’s using these lenses should be rewarded for doing your job for you — that’s good debating.

Evidence quality

Not all evidence is equal — consider source credibility, recency, and whether it’s actually on point for the claim it’s attached to.

Simply naming a source ("studies show...") is weaker than a source that’s explained and applied to the specific argument.

Dropped arguments, weighed honestly

Treat unaddressed arguments as conceded — but weigh how important the dropped argument actually was, not just the fact that it was dropped.

Don’t supply your own warrant for a claim a debater never explained, even if you personally find it plausible. That’s intervention.

The five weighing mechanisms, on one motion

Every example below weighs the same motion — MSPDP — "This House would ban homework for elementary school students" (Proposition) — so you can see one round argued five different ways rather than five unrelated topics.

Magnitude — How Many, How Much

Compare how many people each side affects and how much it matters to each of them. Say both sides' results out loud and explain why yours is bigger — don't just say that it is.

Say how you will compare

Let's compare the two sides with one simple question: which one is bigger — which one reaches more kids, and matters more to each of them?

Admit their best point

We'll give the Opposition their best point: some students really do learn from practicing at home, and for those students, homework helps.

Show how big theirs really is

But look at who those students actually are. Their own example was a child with a quiet room, a free evening, and a parent who can explain a problem. That is a real group, and it is a small one.

Show how big yours is

Ours is every other child in that classroom — the one doing worksheets at a kitchen table with three younger siblings, the one whose parents work a night shift, the one who has nobody at home who can help with fractions. For them, homework doesn't teach the lesson. It just shows who has help at home and who doesn't, every single night.

Put them side by side

So here is the choice: a small gain for the students who were already doing fine, against a hard time every night for the students who weren't.

Explain why this should decide it

And size should decide this, because a homework rule isn't something a family chooses. It lands on every child in that school at once, so judge it by what it does to all of them — not just the few it happens to suit.

Say who should win

When you compare how many kids each side reaches, the Proposition wins this debate.

Probability — What Actually Happens

Show why your side's result is more likely to actually happen. The strongest version counts what has to go right for each side and shows that yours needs less.

Say how you will compare

Before you ask which side is bigger, ask which one will actually happen — because a result that never happens doesn't help a single kid.

Show yours is simple

Our side needs just one thing to be true: if you take two hours of homework out of a nine-year-old's evening, that child gets two hours back. That isn't a guess. That's just math.

Count what theirs needs

Now count what the Opposition needs. The homework has to be assigned. Then it has to actually get done. It has to get done without a parent quietly doing half of it. And whatever the child learns has to still be there months later, when it finally shows up on a test.

Find the weak link

That's four things that all have to go right — and their own second speaker admitted about a third of students don't finish their homework. So for a third of that class, their idea fails before we've said anything else.

Use real life

And we already know what an evening without homework looks like, because it happens every Saturday. Kids sleep longer, families eat together, and no school has fallen apart.

Say who should win

Compare the result that's almost certain with the one that needs four things to go right, and this debate goes to the Proposition.

Timeframe — What Happens First

Explain why your side's result happens sooner. Something happening now usually matters more than something years away — but say why the waiting itself hurts, not just that there is a wait.

Say how you will compare

The next question is simple: which side's result shows up first?

Yours happens right away

Ours shows up in week one. The first Monday after this rule starts, a child finishes school at three and the evening is theirs again. They sleep longer that night. They eat dinner with their family that night. Nothing has to build up — the good part is just there.

Theirs takes years

The Opposition says homework builds study habits that pay off in middle school. Those are their words, not ours. They are asking a nine-year-old to be worn out now so they can be organized at fifteen.

Why the wait matters

Six years is a long time to wait. In that time the child changes schools, changes teachers, and probably runs into a totally different homework rule anyway. Their result has to survive all of that. Ours doesn't have to survive anything.

What waiting costs

And waiting isn't free. Every term we wait is another term of late nights and Sunday-night worry for kids who never got a say. You can't give that time back later.

Say who should win

When one side helps on Monday and the other might help in six years, choose the one that is actually real. Vote Proposition.

Reversibility — Can It Be Undone

Show that your side's mistake could be undone and theirs couldn't. The clearest version asks what happens to a real person if each side turns out to be wrong.

Say how you will compare

The last question is: which side's mistake could be fixed later?

Set up the test

Neither team can prove they're definitely right tonight. So the fair question isn't who's sure. It's what happens to a real child if each of us turns out to be wrong.

If we are wrong

Say we're wrong, and these kids really did need homework every night. What happens? Test scores dip for a term, a principal notices, and homework comes back in the fall. That's the whole cost of our mistake: one term, fixed by the same people who made the rule.

If they are wrong

Now say they're wrong, and the lost sleep and stress we talked about tonight are real. Those children don't get a do-over of fourth grade. You can't give a ten-year-old back the evenings they spent crying over a worksheet, or the sleep they missed, or the love of math they gave up on at nine.

Compare the two mistakes

So the two mistakes aren't the same size. One costs a term of test scores. The other costs a piece of childhood, and you can't get it back.

Say who should win

When one side's mistake can be fixed in a term and the other side's can't be fixed at all, vote for the one that can be fixed. That's the Proposition.

Cost-Benefit — Weigh the Trade-off

Put your side's biggest good point against the biggest problem the other team raised, and show why yours still wins. Don't skip past their problem — say it, take it seriously, then show the good still outweighs it.

Say how you will compare

Finally, ask one simple question: is our idea worth it, once you count the good and the bad?

Say their worry fairly

Their worry is real, and we won't pretend it isn't. Some students will get less practice on what they learned that day, and for things like times tables, practice really does help.

Show how you already handled it

But look at what we actually proposed. Teachers spend hours grading homework. Our plan uses that time for fifteen extra minutes of practice in class — with a teacher in the room, for every child, not just the ones with help at home. The practice doesn't disappear. It moves somewhere it works better.

Say what we gain

Against that, look at what we gain: kids who sleep, families who get their evenings back, and a classroom where the gap between the kid with a tutor and the kid without one stops growing a little more every night.

Add it all up

So here's the honest total. They lose a little practice at home, and we've already replaced most of it with something better. We gain rest, family time, and a fairer classroom. That's not a close call.

Say who should win

Count the good and the bad together, and the Proposition leaves those students better off. Vote Proposition.

Get instant feedback on your own weighing

Learning to judge properly

Judge Mode in the app runs 10 training modules with quizzes — flowing, definitions and plans, weighing impacts, speaker points, and writing a reason for decision — plus ballots and a format-aware timer. It is free and unlimited.

Judging your first rounds?

Work through the full judge curriculum, then keep your ballots and flows in the same place.

Frequently asked questions

Judging is easier once you can track the round — start with how to flow a debate.
What is weighing in debate?

Weighing is explicitly comparing your impacts against your opponents’ instead of just restating your own. Strong weighing names both impacts out loud and explains why yours decides the round — by magnitude, probability, timeframe, reversibility, or cost against benefit.

What are the main weighing mechanisms?

Magnitude (how big and how far it reaches), probability (how likely it is to actually happen), timeframe (how soon it lands), reversibility (whether the harm can be undone), and cost-benefit (whether the gain is worth what it costs).

Does dropping an argument mean you lose the round?

No. A dropped argument is usually treated as conceded, but conceded is not the same as important. An argument can be entirely unanswered and still carry very little weight — "dropped" and "well-supported" are two different axes, and a judge should weigh it honestly rather than automatically.

How much does delivery matter to a judge’s decision?

Delivery generally drives speaker points, while the decision itself should come off the flow. That said, an argument a judge cannot follow is an argument that cannot be weighed, so clarity and signposting affect the decision indirectly.

What makes evidence strong in a debate round?

Source quality, recency, and whether the evidence actually supports the claim being made with it. A confident citation attached to a claim it does not prove is weaker than a modest piece of evidence that genuinely warrants the point.

Can a judge vote on an argument the debaters never explained?

They should not. Judges are asked to evaluate the round the debaters actually had, not to fill in reasoning themselves — an argument asserted without a warrant is an argument the judge has no grounds to prefer.

Train as a judge, free

Structured modules with quizzes, format-specific judging notes, ballots, flow sheets, and a timer built for the format you're judging.