Memory sport has ten standard events, and each one has a record that sounds impossible until you do the arithmetic. Four and a half thousand random digits in an hour is a new digit every 0.78 seconds for sixty minutes. A shuffled deck in under thirteen seconds is more than four cards a second. This page lists all ten record benchmarks in one place, works out the pace each one implies, and shows how each compares with the World Memory Sports Council's Millennium Standards.
Every figure comes from the same data the MemoChamp training drills use, so the benchmark you are chasing in a drill is the number on this page. The pace column is our own arithmetic, not a published statistic.
Quick Answer: The Ten Record Benchmarks
| Event | Record | Holder | Set at |
|---|---|---|---|
| Speed Numbers (5 min) | 642 digits | Wei Qinru | IMO Korea Open Memory Championship, 2024 |
| Hour Numbers (60 min) | 4,620 digits | Ryu Song I | World Memory Championships, Wuhan, 2019 |
| Speed Cards (one deck) | 12.74 seconds | Shijir-Erdene Bat-Enkh | Korea Open Memory Championship, 2018 |
| Hour Cards (60 min) | 2,530 cards | Kim Surim | World Memory Championships, Wuhan, 2019 |
| Binary Numbers (30 min) | 7,485 binary digits | Ryu Song I | World Memory Championships, Wuhan, 2019 |
| Random Words (15 min) | 410 words | Emma Alam | World Memory Championships, 2020 |
| Abstract Images (15 min) | 1,048 images | Huang Jinyao | Chinese National Memory Championships, 2022 |
| Names and Faces (15 min) | 218 names | Emma Alam | World Memory Championships, 2020 |
| Historic Dates (5 min) | 241 dates | Syeda Kisa Zehra | World Memory Championships, 2020 |
| Spoken Numbers | 660 digits | Hu Xueyan | World Memory Championships, 2024 |
What Each Record Means as a Pace
A bare record is hard to feel. Divide it by the time allowed and it becomes something you can compare with your own drill results:
| Event | Record | Implied pace |
|---|---|---|
| Speed Numbers (5 min) | 642 digits | 128.4 digits per minute |
| Hour Numbers (60 min) | 4,620 digits | 77.0 digits per minute |
| Speed Cards (one deck) | 12.74 seconds | 4.08 cards per second |
| Hour Cards (60 min) | 2,530 cards | 42.2 cards per minute |
| Binary Numbers (30 min) | 7,485 binary digits | 249.5 binary digits per minute |
| Random Words (15 min) | 410 words | 27.3 words per minute |
| Abstract Images (15 min) | 1,048 images | 69.9 images per minute |
| Names and Faces (15 min) | 218 names | 14.5 names per minute |
| Historic Dates (5 min) | 241 dates | 48.2 dates per minute |
| Spoken Numbers | 660 digits | 1 digit per second (fixed by the event) |
Two patterns stand out. First, pace drops sharply as the event gets longer: the five-minute Speed Numbers record is about 128 digits a minute, but the hour record is 77. Nobody can sustain a sprint pace for an hour, and the gap shows what endurance costs. Second, binary is by far the fastest per item, about 250 digits a minute, because each binary digit carries so little information. Three of them make one digit from 0 to 7 in the usual grouping, which is why binary memorization is really a chunking problem.
Records Against the Millennium Standard
The WMSC scores a championship by comparing each result with a Millennium Standard: reaching it is worth 1,000 points. Here is what each record would score against the standards in the 31 January 2021 revision, using the same formulas as the championship points calculator:
The vertical line marks the Millennium Standard (1,000 points).
| Event | Standard (= 1,000) | Record's championship points |
|---|---|---|
| Speed Numbers (5 min) | 659 digits | 974 |
| Hour Numbers (60 min) | 4,493 digits | 1,028 |
| Speed Cards (one deck) | 16.02 seconds | 1,187 |
| Hour Cards (60 min) | 2,600 cards (50 decks) | 973 |
| Binary Numbers (30 min) | 7,654 digits | 978 |
| Random Words (15 min) | 312 words | 1,314 |
| Abstract Images (15 min) | 761 points | 1,377 |
| Names and Faces (15 min) | 200 names | 1,090 |
| Historic Dates (5 min) | 154 dates | 1,565 |
| Spoken Numbers | 447 digits | 1,215 |
Most records score near or above 1,000. That is expected: the standards are targets set from top rankings, reviewed each year, and raised once three competitors have beaten one. Records set in other competitions, or after the 2021 revision, can sit above the line. The Abstract Images and Historic Dates records, for instance, are worth far more than 1,000 against these standards. Different event definitions and scoring units between competitions are one reason to treat the comparison as a rough guide.
How Long Does Each Item Get?
The most useful way to feel a record is the time per item, because that is what your own training measures:
| Event | Time per item at the record |
|---|---|
| Speed Numbers (5 min) | 0.47 s per digit |
| Hour Numbers (60 min) | 0.78 s per digit |
| Speed Cards | 0.25 s per card |
| Hour Cards (60 min) | 1.42 s per card |
| Binary Numbers (30 min) | 0.24 s per binary digit |
| Random Words (15 min) | 2.20 s per word |
| Names and Faces (15 min) | 4.13 s per name |
| Abstract Images (15 min) | 0.86 s per image |
| Historic Dates (5 min) | 1.24 s per date |
| Spoken Numbers | 1.00 s per digit (set by the reader) |
These are averages over the whole attempt, and they include the time to look at the item, form an image and place it. An athlete is not "reading" a digit in half a second; they are encoding groups of digits as single images, so the effective pace per image is slower than the pace per digit. See how many digits can you memorize for the numbers behind that.
The Ten Events at a Glance
| Type | Events | What decides the score |
|---|---|---|
| Numbers | Speed Numbers, Hour Numbers, Binary, Spoken Numbers | Complete rows recalled correctly; one mistake halves a row |
| Cards | Speed Cards, Hour Cards | Speed Cards: a formula on time. Hour Cards: complete packs of 52 |
| Words and images | Random Words, Abstract Images | Words and rows recalled correctly in order |
| People and facts | Names and Faces, Historic Dates | Names and dates matched correctly |
If you are choosing where to start, read which event to start with. To see how the events are scored in detail, the scoring explainer walks through each rule.
Using the Records in Your Training
- Pick one event and run a baseline in the drill. See your score as a percentage of the record.
- Convert to pace. Divide your score by the minutes to get items per minute, and compare it with the pace column.
- Set targets relative to yourself. A realistic goal is your next personal best, not the record.
- Re-test every few weeks in the same format, at the same time of day, and write each score down so you are always comparing like with like.
MemoChamp deliberately does not publish "a good score is N" thresholds, because they would be invented. The records and the Millennium Standards are real numbers with a source, so they are what we benchmark against.
Frequently Asked Questions
What is the world record for memorizing a deck of cards?
12.74 seconds, set by Shijir-Erdene Bat-Enkh of Mongolia at the 2018 Korea Open Memory Championship. That is about 4.1 cards every second, including the time to see and store each card. Guinness World Records still lists 13.96 seconds (Zou Lujian, 2017 World Memory Championships, Shenzhen).
What is the world record for memorizing digits?
It depends on the time allowed. The current records are 642 digits in five minutes (Wei Qinru, 2024), 4,620 digits in an hour (Ryu Song I, 2019, World Memory Championships, Wuhan), and 660 digits for Spoken Numbers, where digits are read aloud at one per second (Hu Xueyan, 2024). Guinness World Records still lists the earlier 616 and 547.
Who holds the most memory sport records?
Among the benchmarks used on MemoChamp, Ryu Song I and Emma Alam hold two each. Ryu Song I holds Hour Numbers and 30-minute Binary, both from the 2019 World Memory Championships in Wuhan. Emma Alam holds Random Words and Names and Faces (2020).
Why do different sites list different memory records?
Several organizations keep rankings, they use different event definitions and cut-off dates, and records can be set at national, junior or world-level competitions. The figures here are the benchmarks the MemoChamp drills use: the current figures in the sport's records tables, which for three events (five-minute numbers, Spoken Numbers and Speed Cards) are newer than Guinness World Records' listings. Read them as benchmarks rather than rulings.
What is the Millennium Standard?
It is a target score for each event, reviewed each January by the World Memory Sports Council, that is worth 1,000 championship points. This page shows what each record would score against the standards in the 31 January 2021 revision.
Can a record be worth more than 1,000 championship points?
Yes. The standards are targets rather than caps. Several records on this page score above 1,000 against the 2021 standards, which is the signal the WMSC uses to decide a standard should be raised.
Are these records official?
They are the current record figures from the sport's records tables, with Guinness World Records' listings for the others, which this site uses as its benchmarks. Competition results are ruled on by the arbiters at each event, so check the governing body for an official verdict.
Core Takeaways
- Memory sport has ten events, and each record is a pace you can compute: for example 0.78 s per digit over an hour.
- Pace falls as events get longer; binary is the fastest per item.
- Records are benchmarks from different competitions, so they are best read alongside the Millennium Standard.
- Use your own drill results, as a percentage of the record and as items per minute, to track progress.
Related Guides
- What is memory sport? — the championship, its ten events and how scoring works.
- Championship Points Calculator — score all ten events.
- How Fast Can You Memorize a Deck of Cards? — the Speed Cards record, explained.
- How Many Digits Can You Memorize? — limits and encoding math.
- Leaderboard — a board for all ten events.
- Memory Sport Glossary — the vocabulary of the sport.
- Memory Pace Calculator — turn any target into seconds per image.
- Row Scoring Calculator — score a recall sheet.
- How to prepare for your first memory competition — a practical preparation checklist.
- Memory championship Millennium Standard targets — the numbers behind the title standard.
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