Bags and sandbagging
What bags are, and why they cost you the match
A bag is the cheapest point in Spades and the most expensive. It pays one point the moment you take it, then sits in a pile waiting to charge you a hundred.
The arithmetic that catches people out
Ten bags earn ten points and then cost a hundred. The net effect of a full cycle of overtricks is minus 90 points, exactly as costly as being set on a bid of nine, except that it arrives in pieces small enough that nobody at the table notices.
| Bags taken | Points gained | Penalty | Net |
|---|---|---|---|
| 1 | +1 | 0 | +1 |
| 5 | +5 | 0 | +5 |
| 9 | +9 | 0 | +9 |
| 10 | +10 | −100 | −90 |
Nothing warns you on the way. The first nine bags look like a bonus, which is exactly why the tenth is such a shock.
Sources: Pagat: Spades.
The count carries, so it never really resets
Reaching eleven bags costs 100 and leaves one bag standing. That surviving bag is nine away from the next penalty, not ten. A team that keeps over-taking pays again sooner than it expects.
Worked example
Two penalties in one hand
A partnership carrying 9 bags bids 2 and then sweeps all thirteen tricks. That is 11 overtricks, bringing the total to 20 and crossing the threshold twice. The hand scores 20 for the contract and 11 for the bags, then pays 200: a net of −169 on a hand that won every trick.
Where bags come from when nobody over-takes
Two sources of bags have nothing to do with bidding low.
- A failed nil. Tricks taken by a nil bidder who breaks the promise do not help the partner's contract, but they do land in the bag pile.
- Defending too well. Setting the opponents often means taking tricks you did not bid for. The set is usually worth it, but the bags are real.
Sources: Pagat: Spades.
Bidding so the pile stops growing
Bags are a bidding problem, not a card-play problem. The cure is bidding what your hand actually takes.
- Count your near-certain tricks honestly. A high spade you will certainly cash is a trick, not a maybe.
- Bid the extra trick you keep taking anyway. If you routinely bid 3 and take 4, the fourth trick belongs in the bid.
- Watch the bag count, not just the score. Sitting on 8 bags changes what a safe bid means for the next hand.
- Consider taking the set instead. When you are near the threshold, a hand spent setting the opponents may cost fewer points than quietly banking three more bags.
None of this is proven optimal play, and Big Mike does not present it as solved strategy. It is the reasoning the scoring rules reward.
Tables that switch bags off
Not every table plays with a bag penalty, and turning it off is a legitimate choice rather than a beginner setting. Big Mike supports the ten-bag/100-point standard, a stricter five-bag/50-point rule, and no penalty at all. With the penalty off, overtricks simply score one point each with nothing waiting at the end.
The teaching preset, Straight Books, uses no bag penalty and no nil so a new player can learn contract play before meeting the score swings.
Quick answers
Bags FAQ
What is a bag in Spades?
A trick taken above your partnership's contract. Each one scores a single point immediately and adds to a running count that costs 100 points when it reaches ten.
Why is it called sandbagging?
Sandbagging is deliberately bidding below what your hand can take. It looks safe hand by hand, but the surplus tricks accumulate into a hundred-point penalty.
Do bags reset each hand?
No. They accumulate across the whole match and only reduce when a penalty is paid, which subtracts the threshold and carries any remainder.
Do you get bags when your contract is set?
No. Overtricks only exist on a contract that was made. A set partnership takes no bags for that hand, though a failed nil bidder's tricks still count as bags.
Watch the pile
Track bags with the free scorekeeper
The calculator carries the bag count between hands and shows the penalty the moment it triggers.