Valdar / Free tools / Crossover Calculator
Crossover calculator: is moving a card to another grader worth the fee?
A crossover that fails comes back in its original holder, so what you risk is the fee and the weeks rather than the card. This works out the expected value of the attempt against simply keeping the slab, and prints the success rate at which the fee pays for itself.
Sending it beats keeping it · $59.97 ahead of doing nothing
| Outcome | Chance | Net to you | Against keeping it |
|---|
What happens when a crossover fails?
The card comes back in the holder it left in, with its original label and certification number untouched. That is the whole structural difference between a crossover and every other grading decision on this site, and it is the reason the arithmetic on this page looks different from the arithmetic on the grading expected-value page.
A raw submission puts the card itself at stake: you find out what it is, and if the answer is an 8 then an 8 is what you now own and what every future buyer will see. A crossover puts only the fee at stake. The second company assesses the card through the holder, and if it will not agree to the minimum grade you specified, it does not break the card out. The old grade survives, the old price survives, and what you have lost is the fee, the postage and six to twelve weeks of not being able to sell.
That asymmetry is what makes a low success rate survivable. If failure cost you the grade, a 30% chance of success would be reckless. Because failure costs you a fixed amount you can name in advance, a 30% chance can be perfectly sound — provided the gap between what the card is worth now and what it would be worth in the other holder is wide enough to pay for four failures out of every six attempts.
| Outcome | Chance | Net to you | Against keeping it |
|---|---|---|---|
| It crosses at the grade you asked for | 55% | $406.10 | +$145.85 |
| It fails and returns in its original holder | 45% | $215.25 | −$45.00 |
| You never send it | — | $260.25 | baseline |
All three rows are net of the same 13.25% selling fee; the first two also carry the $45 cost of the attempt, which the company charges whether or not the card crosses.
Look at the failure row rather than the success row. Failing costs $45.00 against doing nothing, which is exactly the cost of the attempt, and nothing else changes: the same card, the same holder, the same buyers. Succeeding gains $145.85. The bet is therefore 3.2 to one in money terms, which is why the break-even probability lands well under a half.
Reading the break-even line
The break-even rate is the cost of the attempt divided by the value gap, after the selling fee. In the worked example that is $45 divided by the $220 gap less the fee on it, which comes to 23.6%. Above that rate the attempt is worth making; below it the fee costs more than the upgrade is worth.
Two things follow, and both are more useful than the headline expected value. The first is that the break-even rate does not depend on how much the card is worth, only on the gap: a $300 card and a $3000 card with the same $220 gap and the same fee break even at the same probability. The second is that the same equation solves in the other direction. At the 55% success rate assumed here, the gap would need to be at least $94.32 for the attempt to pay — so a card whose label premium is smaller than that is not a crossover candidate whatever else is true about it.
Both readings turn an argument into a check. Instead of debating whether a card will cross, you establish the gap from sold listings for the same card in both holders, read the break-even rate off the calculator, and ask one question: does this particular card clear that number. That is a much easier question, and it is one the card itself can help answer.
How to set up a crossover, in order
- Price the card in both holders. Find sold listings for the same card at the same grade in the holder you own and in the one you are aiming at. The value calculator takes a list of sold prices and returns the median for each, and the difference between those two medians is the gap this whole decision turns on.
- Set the minimum grade deliberately. Equal to the current grade is a like-for-like request. One grade higher is an upgrade request, which is an entirely different proposition and fails far more often. There is no middle setting, and there is no "whatever you think" — leaving the minimum blank converts the submission into an uncapped raw grading with your existing grade discarded.
- Measure what you can before you pay. Centering is a measurement rather than an opinion and it caps the grade on its own, so run the borders through the centering calculator against the target company’s published tolerance. A card outside the band for the grade you are asking for will not be talked back inside it.
- Read the target company’s standards, not its reputation. Each one publishes what it expects at each grade; BGS additionally publishes four subgrades, so a card that crosses there arrives with a public explanation of why it graded where it did.
- Cost the attempt properly. Fee, insured postage in both directions, and insurance on the declared value. The card is already valuable enough to be worth crossing, which means it is valuable enough that uninsured postage is not an option.
- Decide once, then wait. Crossovers take as long as ordinary submissions and the card is unsellable while it is away. If you would be unhappy to have it out of reach for three months, the attempt has a cost the arithmetic here does not show.
Crossing down is a different transaction
Asking a company to cross a card at a grade below the one it currently carries is a legitimate instruction and it is not the transaction this calculator describes. The usual reason is a set that must be uniform, or a holder the collector prefers to look at, or a registry that only counts one company’s slabs. In every one of those cases the card is worth what the new label makes it worth, and that figure is frequently lower.
Put those numbers in and the tool will say so plainly: when the target value is at or below the current value, there is no break-even success rate, because no probability of success turns a smaller number into a larger one. The readout reports it as not applicable rather than quietly printing a figure, since a break-even rate for an attempt that cannot pay is a number with no meaning.
None of which makes the decision wrong. It makes it a preference rather than an investment, and the honest way to treat a preference is to price it and then pay it knowingly. The gap this calculator prints is exactly what that preference costs.
Why a wide gap survives a low success rate
The break-even rate falls as the value gap widens, and it falls fast: doubling the gap halves it, because the cost of the attempt is fixed and the reward is not. A card with a $220 gap needs 23.6% at a $45 fee; the same card with double the gap needs 11.8%. Plotted across every gap from $20 to $1000, that relationship is the whole argument about which cards are worth crossing.
| Value gap | Gap over cost | Break-even success rate | Edge at 55% | What it means |
|---|---|---|---|---|
| $25 | 0.6× | no rate pays | −$33.07 | Certain success still loses money. Keep the slab. |
| $50 | 1.1× | no rate pays | −$21.14 | Certain success still loses money. Keep the slab. |
| $100 | 2.2× | 51.9% | $2.71 | A gap this wide carries a long run of failures. |
| $220 | 4.9× | 23.6% | $59.97 | The worked example. Roughly one in four is enough. |
| $500 | 11.1× | 10.4% | $193.56 | A gap this wide carries a long run of failures. |
| $1000 | 22.2× | 5.2% | $432.13 | A gap this wide carries a long run of failures. |
Every row is one call to the calculator above with the gap changed and nothing else. Where the required rate would exceed 100% the table says so rather than printing a number: a gap smaller than the cost divided by one minus the fee cannot be paid for by any probability, because even certain success returns less than the attempt costs.
This is why crossovers concentrate at the top of the market. The first row in that table that pays anything at all is the $100 gap — 2.2 times the cost of the attempt — and it pays $2.71, which is not payment for three months of waiting. On a four-figure card the same fee is a rounding error against a gap of several hundred dollars, and the attempt is worth making even if you privately think it will fail most of the time. The fee does not scale with the card; the premium does.
The corollary is worth stating for the cards that fail the test. If the gap between two holders for your card is a few dollars, that is the market telling you both labels are trusted equally for that card, and there is nothing to arbitrage. Keep the slab, sell it as it stands, and put the fee toward a card where the gap is real.
| Instruction | What the grader does | What you are risking |
|---|---|---|
| Minimum equal to the current grade | Breaks the card out only if it agrees the card is at least that good; otherwise returns it sealed. | The fee and the wait. The grade is protected either way. |
| Minimum one grade higher | Breaks it out only on an upgrade, which requires the second company to disagree with the first in your favour. | The fee and the wait, at a much lower success rate. |
| Minimum below the current grade | Crosses the card almost regardless, into a label the market may price lower. | The difference in value between the two holders, permanently. |
| No minimum set | Grades the card on its merits and seals whatever it finds, discarding the grade you already owned. | Everything a raw submission risks, having paid for a crossover. |
Each company words its crossover service differently and some limit which grades are eligible. Read the service description on the day you submit rather than a summary of it.
What a crossover does not do
| What it does not do | Why | What follows |
|---|---|---|
| Re-examine the card generously | The second company grades through a sealed holder. | Restricted sight makes a grader conservative, not lenient. |
| Fix anything | A crossover changes the label on the outside. | A card capped by a soft corner is still capped by it. |
| Guarantee the same number | Each company grades to its own published standard. | Grades are not interchangeable, which is why the attempt can fail. |
| Make a thin market liquid | A holder changes the price, not the queue of buyers. | Compare the routes to cash in the where-to-sell comparison first. |
| Pay for itself in presentation | A nicer holder is worth having and it is not worth a fee. | Price the gap. If the market does not agree in money, it is a preference. |
Bottom line
A crossover is worth attempting when the value gap between the two holders, after selling fees, is wide enough that your estimated chance of success exceeds the cost of the attempt divided by that gap. In the worked example on this page a $300 card that would be worth $520 in the other company’s holder, at a $45 all-in cost and a 13.25% selling fee, breaks even at a 23.6% success rate and returns $320 against $260 for keeping the slab. The reason a low success rate can still be sound is structural: a failed crossover comes back in its original holder with its original grade, so the downside is the fee and the weeks rather than the card. Set the minimum grade equal to the grade you already have unless you are deliberately gambling on an upgrade, and never leave it blank, because a crossover with no minimum is a raw submission that threw away a grade you already owned.
Questions this tool gets asked
What is a crossover submission?
It is sending a card that is already graded and sealed by one company to a different company, asking it to grade the card inside the existing holder and only break it out if the result meets a grade you specify. If the second company agrees to your minimum, the card is removed from the old holder and sealed in a new one. If it does not, the card comes back untouched in the holder it arrived in, and you have paid the fee for an opinion.
What happens if a crossover fails?
The card is returned in its original holder, exactly as you sent it, with the original label and certification intact. That is the structural difference between a crossover and a raw submission: the downside is the fee, the postage and the weeks, not the card. Nothing about the failed attempt is recorded on the old label, and the card is worth what it was worth before you sent it, less what you spent finding out.
What success rate should I assume?
Nobody publishes one, and anyone quoting a precise figure is guessing. The honest approach is to work backwards: the calculator prints the break-even rate, and you then decide whether your card clears it. A card sitting comfortably inside the target company’s published standards is a better bet than one at the edge, and the one input you can settle yourself is centering, because it caps the grade regardless of everything else.
Is it cheaper to crack the slab and resubmit raw?
Sometimes cheaper and always riskier, because a raw submission has no floor. Cracking the holder throws away the grade you already own: if the new company grades the card lower than the old one did, you keep the lower grade and there is no way back. A crossover keeps the old grade as a floor for the price of a constrained instruction, which is what you are paying the fee for.
Why does the calculator charge the fee on both branches?
Because the company charges it on both branches. A failed crossover is billed like a successful one — the grader looked at the card, formed an opinion, and returned it — so the cost sits on every path except the one where you never send it. Leaving the fee off the failure branch is the most common way this calculation is done wrong, and it makes every crossover look better than it is.
What does a minimum grade instruction do?
It tells the second company not to break the card out of its holder unless it would grade at or above the number you set. Set it equal to the current grade and you are asking for a like-for-like swap of labels. Set it above and you are asking for an upgrade, which is a much harder request and fails far more often. Setting no minimum at all turns the submission into an uncapped raw grading with the old grade thrown away.
Does a crossover change the population reports?
It adds a copy to the new company’s population and, if you return the old label as instructed, removes one from the old company’s. That is the honest version. In practice some labels are never returned, which is one of several reasons a population count is a record of grading events rather than a headcount of cards — the population report calculator on this site goes through the rest of them.
Is it worth crossing a card into a cheaper holder?
Only if something other than resale value is driving it, because the arithmetic will say no. If the target company’s slab sells for less than the one the card is in, the expected value is negative at every success rate and the calculator will report no break-even at all. Presentation, a registry set or a matched collection are real reasons to do it; they are simply not reasons this calculator can price.
The card is in your hand. Point the camera at it.
These calculators work on numbers you already have. Valdar gets you the numbers: it identifies the card from one photo, pulls what that exact card has actually sold for, and estimates the four grading sub-dimensions before you pay a submission fee. Free to try on iPhone and Android.