Cambridge Coincidences Collection

Well I Never!

Professor David Spiegelhalter of Cambridge University wants to know about your coincidences!

Why? By recording your coincidence stories here, you can help him build a picture of what kinds of coincidences are out there and which ones seem to ‘get to’ us the most. Your coincidence stories can also help him explore the scientific explanations which may account for them – whether by doing the maths to calculate the chances of a coincidence, or speculating on the weird and wonderful workings of our brains.

Coincidences tend to be ‘surprising matches’ – sometimes they are lucky, sometimes unlucky, sometimes just mind-boggling. To help you recall the coincidences that have happened in your life, here’s a list of some common types of coincidence:

  • Surprising repetitions: for instance when you’ve had not contact with someone for ages, then find two connections to them very close together in time. Or when over several years multiple members of the same family are born with the same birthday. Or even a repetition of a really rare event – like winning the lottery twice, or your life being saved twice by the same person!
  • Simultaneous events: for example when two people phone each other at exactly the same time.
  • Parallel lives: such as when two people in a small group find they share a birthday or an unusual name, or when two people discover their lives match each other in bizarre details.
  • Uncanny patterns: imagine picking letters in Scrabble that spell your name.
  • Unlikely chains of events: perhaps you lost your false teeth overboard and found them inside a fish you caught twenty years later?

If anything coincidental has happened to you - anything that made you stop and say "well, what were the chances of that..?" - then please record your story in the form below! Please try to keep your story personal - about you or someone you know. The only thing we'd ask you to steer clear of are premonitions or déjà vu, purely because - whilst fascinating - they're quite common and also difficult to analyse.

You could also tell us about coincidences in the news, but please provide a link to a reliable source!


Title: two or three words that give a simple description of your story, eg ‘old friend’ or ‘birthday coincidence’
Coincidence: tell your coincidence story - and please include plenty of relevant detail (places, dates, numbers etc.) and include your first name if you want.
Email address (optional): please leave an email address, as then we can get in touch to find out more!

All of the information entered below except your email address will be published on this website when you press save





By ticking this box you agree that your email address can be forwarded to Wingspan Productions Ltd, who are making a BBC television programme about Chance and would like to feature Professor David Spiegelhalter's coincidence collection. In doing so you agree that the producers of the programme may contact you directly to ask you more about your story, though whether you decide to help them is entirely up to you. Your details will not be forwarded to any other party or used for marketing purposes.



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haagen dazs strawberry ice cream

Renee and I went to eat haagen dazs when we are ordering the ice cream we found out that we both order strawberry ice cream, I ask her why do you like this flavor, she told me is because of the strawberry inside and thats what I like too.

mutual friends in Huaxing.

My classmate Devin and I both studied in Huaxing before but different period of time. I was in Huaxing elementary school and he was in Huaxing junior high School. Although we were not in the same class at the same period of time, but we both have some mutual friends in Huaxing. Now we are also classmates in Kueishan.

Meeting my First Friend

When I was in the first day of my first grade, i started talking to the boy sitting next to me, and we soon become my first friend in elementary school. The next day, when i went to my english cram school, i found out my first friend was also studying here, after we know each other better, we realize that our birthday is only one day diffrerent, therefore we are also born in the same hospital.

Living in the same area

I live in San Chong, as the school is pretty far from where I assumed that there will be no one living in the same area as I lived in. Recently I saw one of my schoolmates often in the same mrt as I was and I was curious so I asked him, this is when I realize we live in the same area and mrt station. Such a coincidence.

birthday coincidence

once when i was in primary school in slovakia, we played this game where we had to state something about ourselves which we think is special and unique. if someone else had anything which is the same as what you stated, that certain someone gets to sit on your lap. there was this one boy who said that his birthday was on the 7th of december, 2002, which is the same birthday as me. however, i didn't say anything since i didn't want to sit on his lap.

Coincidence of living in the same building.

I have a classmate, his name is Samuel. We are in the same class. One day, after I got home, I sat in the lobby of the building playing phone. Later on, I heard somebody say my name. I look up and saw Samuel looking at me with curiosity. I was astonished that he lived in the same building with me.

both born in the same country and both having beef the last night

We were both born the same country Taiwan and we both had beef for dinner last night and we are now going to the same school same English class same biology class same math class and we sit next to each other in math class. My classmate Devin.

Golf cart crash

Me and one of my friend when we were grade 5 drove a golf cart straight into a wall.

Same Neighborhood

My friend Yuki and I met in Beijing in middle school. We found out we were both Taiwanese and came from the same part of Taipei. We then found out that our grandparents lived only three minutes away from each other, in the same neighborhood.

Sharing Birthdays

In my previous school my best friend's sister shared the same birthday with me, this allowed the both of us to compete who can send happy birthday first between the both of us. After having the same birthday I moved to Taiwan where I attended Kuei Shan, in Kuei Shan I met 2 students, Lucas and Johnny who share the same birthday as me. One which was Lucas my classmate shares the same birthday in the same year.

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