A shuffled deck of 52 cards, in under thirteen seconds. The record sounds like a trick, and it is easy to assume it means a rare gift. It does not. It is a pace you can compute, a system you can learn, and a scoring formula that rewards each second saved. This page works through the numbers: the time-to-points table, what each method allows per image, and how to read your own results.
Quick Answer
- Record: 12.74 seconds (Shijir-Erdene Bat-Enkh, 2018 Korea Open Memory Championship; Guinness still lists 13.96 s, Zou Lujian, 2017).
- Pace: 4.08 cards per second, or 0.25 seconds per card.
- Points at the record: 1,658 Speed Cards points.
- Formula: 11180 / t0.75, which is 1,000 points at 25 seconds.
Time to Points: the Full Table
Because points fall steadily as the time rises, ranking by points is ranking by time for complete decks. This table is computed from the same formula the drill uses. The % of standard column compares each time with the 1,396 points a 16.02-second deck earns, which is the 2021 Millennium Standard for the event.
| Time | Speed Cards points | % of standard | Seconds per card | Cards per second |
|---|---|---|---|---|
| 12.74 s | 1,657.9 | 119% | 0.25 s | 4.08 |
| 16.02 s | 1,396.2 | 100% | 0.31 s | 3.25 |
| 20 s | 1,182.1 | 85% | 0.38 s | 2.60 |
| 25 s | 1,000.0 | 72% | 0.48 s | 2.08 |
| 30 s | 872.2 | 62% | 0.58 s | 1.73 |
| 40 s | 702.9 | 50% | 0.77 s | 1.30 |
| 60 s | 518.6 | 37% | 1.15 s | 0.87 |
| 90 s | 382.6 | 27% | 1.73 s | 0.58 |
| 120 s | 308.4 | 22% | 2.31 s | 0.43 |
| 180 s | 227.5 | 16% | 3.46 s | 0.29 |
| 300 s | 155.1 | 11% | 5.77 s | 0.17 |
Note how slowly the points fall: a 60-second deck earns about 519 points, still half of a 25-second deck. The power of 0.75 means halving your time multiplies your score by 20.75, about 1.68, not 2. That is why the first minutes of improvement come quickly and the last seconds cost the most.
What an Incomplete Deck Scores
If you do not recall all 52 cards, the time is taken as 300 seconds and you score the number of cards correct in order from the start, divided by 52. A single mistake ends the count. So:
| Cards correct in order | Score |
|---|---|
| 26 | 0.50 points |
| 40 | 0.77 points |
| 51 | 0.98 points |
| 52 in 300 s (complete) | 155.1 points |
Even the slowest complete deck is worth 155 points, which is far above the best incomplete one. The rule is blunt on purpose: a complete, correct deck always beats an almost-correct one, so build your accuracy first and your speed second.
Time Budget per Image
How fast you can go depends on how many cards each image carries. This table works out how many images a full deck needs, and how many seconds each gets at three target times. These are our calculations, not published figures:
| Method | Cards per image | Images per deck | Per image at 60 s | Per image at 30 s | Per image at the record |
|---|---|---|---|---|---|
| One image per card | 1 | 52 | 1.15 s | 0.58 s | 0.25 s |
| Two cards per image | 2 | 26 | 2.31 s | 1.15 s | 0.49 s |
| Three cards per image (PAO) | 3 | 18 (17.3 rounded up) | 3.33 s | 1.67 s | 0.71 s |
At the record, even three cards per image leaves under a second per scene. That tells you the world-class approach is a practiced system where the image for each card is retrieved instantly, not invented on the spot. See how to memorize a deck of cards and the PAO system for how it is built, and the PAO builder to make your own.
In an Hour: Hour Cards
The one-hour event is a different problem. The benchmark is 2,530 cards, which is 48.7 decks, or 1.42 seconds per card, about five times slower per card than the single-deck record. Endurance, not raw speed, is the constraint: see how to train for the hour events. Scoring is pack by pack: 52 points for a perfect pack, 26 with one mistake and 0 with two or more.
How to Get Faster
- Make accuracy automatic. A complete deck beats any incomplete one, so aim for clean decks before faster ones.
- Fix your images. Every card needs one image you retrieve instantly. Drill the card-to-image list until it is automatic.
- Reduce the number of images. Moving from one card per image to two or three halves or thirds the work.
- Use a route you know cold. A hesitation at a locus costs more than a slower image.
- Race a clock. Time every deck in the Speed Cards drill, and run a mock championship when you want the pressure of a real event.
Frequently Asked Questions
What is the fastest time to memorize a deck of cards?
The current record is 12.74 seconds, set by Shijir-Erdene Bat-Enkh of Mongolia at the 2018 Korea Open Memory Championship. That is about 4.1 cards a second. Guinness World Records still lists 13.96 seconds (Zou Lujian, 2017 World Memory Championships, Shenzhen).
How long does it take the average person to memorize a deck of cards?
There is no reliable average, because most people never try with a technique. With a basic memory-palace method, a first full deck can take a long time and produce errors, and speed comes with practice. The drills on this site measure your own time instead of guessing an average.
How are Speed Cards points calculated?
For a complete deck, points = 11180 / (time in seconds)^0.75, which gives 1,000 points at 25 seconds. A deck with a mistake is scored by the cards in order up to the first mistake, divided by 52, with the time counted as 300 seconds.
Is a 60-second deck good?
It is about 519 Speed Cards points, roughly 37% of the 2021 Millennium Standard of 16.02 seconds. Whether it is good depends on your experience; it is a fast time for most people who use a memory-palace method.
How do memory athletes memorize cards so fast?
They assign every card a fixed image, usually a person, an action or an object, and combine two or three cards into one scene stored at a location along a familiar route. Memorizing the whole deck then means placing 17 to 26 images rather than 52 separate cards.
Does a mistake cost the whole deck?
Cards count only up to the first mistake, so an error early in the deck is costly. If the deck is not completely right, the time is taken as 300 seconds and the score is the cards correct in order divided by 52, always less than 1 point.
How many decks can be memorized in an hour?
The Hour Cards record benchmark is 2,530 cards, which is about 48.7 decks, or roughly 1.4 seconds per card, in the 60-minute event.
Core Takeaways
- The record is 12.74 seconds, about 4.1 cards a second.
- Speed Cards points = 11180 / t0.75; 1,000 points is 25 seconds.
- An incomplete deck scores below 1 point, so accuracy comes first.
- Methods with more cards per image need fewer, but faster, retrievals.
- Measure your own time and compare it with the table.
Related Guides
- Speed Cards Points Calculator — any time to points.
- Memory Sport World Records — all ten events.
- How to Memorize a Deck of Cards — the method.
- Speed Cards strategy: why a perfect deck beats a fast one — accuracy versus speed.
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