Bib number search: how runners find their race photos by number

For race photos, the bib number is the obvious key. It's unique within an event, it's printed in large digits on every runner's chest, and runners remember it. Bib number search turns a gallery of thousands of photos into the handful that matter to one person in a second. This article explains how it works, why it sometimes misses, and what both the people running galleries and the people searching them can do about it.

How bib number search works

When photos are uploaded to a gallery, each one is scanned for race numbers. Every number that can be read is attached to the photo. When a runner types their number, the gallery returns every photo in which that number was read.

On Photohawk this happens automatically on upload, on every plan, with nothing to tag. With previews first, numbers are read on the light previews, so a gallery is searchable by bib as soon as it's live.

The strength of bib search is precision. If your number was read in a photo, that photo is almost certainly yours. Its weakness is that the number has to be in the frame and readable.

Why bib search misses some photos

A bib reader can only read what the photo shows. The common reasons a runner's photo isn't found by number:

• The bib was covered. A hand, a swinging arm, a jacket, a hydration vest or a club flag. This is the most common reason.
• Another runner was in the way. In a pack, the person beside you often hides half your number, and a reader that sees "48" can't know you're 1348.
• The bib was crumpled or twisted. Numbers bend as people move, and a race belt can spin round to the side or back.
• The runner was small in the frame. In wide shots, numbers are often too small to read.
• The number isn't on the front. Cyclists, triathletes on the bike and some trail runners wear numbers on their back, side or bike.
• Wrong gallery. Many events reuse numbers across distances or days, so 412 in the 10K isn't 412 in the half.

None of these are things a better algorithm can fully fix: if the digits aren't visible, they can't be read. That's why bib search works best alongside selfie search, which finds photos where the face is clear but the number isn't.

Text search, beyond the bib

Numbers aren't the only text in event photos. Photohawk galleries also offer text search, so people can look for text in the photo, such as a team name on a shirt. It works on the same principle: what's clearly visible can be read.

Tips for people running galleries

You can't control how runners wear their numbers, but you can make bib search work harder:

• Shoot from the front where you can. Head-on shots at the finish and on straight sections give the clearest numbers.
• Mix wide and tight shots. Wide shots tell the story; tighter shots get the numbers.
• Mind the light. Strong backlight at a finish arch can wash out bibs. A slightly different angle often fixes it.
• Split galleries by distance or day when numbers repeat, so a search for 412 means one person.
• Tell runners what to type. A line in the results email ("search with your bib number as printed, or a selfie") saves a lot of questions.
• Keep folders by location, so runners who aren't found by number can browse where they'd have been.

If you sell race photos, bib search is the fastest route from gallery to checkout. Our guide on selling race photos online covers the rest of the process.

Tips for runners searching

1. Open the right gallery. Check the distance, wave and day before you search.
2. Type the number exactly as printed. No extra letters, no leading zeros unless they're on the bib.
3. Run a selfie search too. It finds the photos where your number was hidden.
4. Browse by location or time. If you know roughly when you passed a point, scroll that part of the gallery.
5. Give it time. Big galleries are uploaded in batches. If the gallery is new, search again later.

On Photohawk you can start at Find your photos: search for your event, choose Find me in this gallery, type your number, add a selfie if you like, and choose Find my photos.

Bib search and privacy

Bib search doesn't use face data. A number is read from the photo and attached to it, like a caption. When Photohawk deletes face data (automatically, at the latest 12 months after each photo is uploaded), bib search, time search and browsing are not affected. The details are in our biometric data retention policy.

Getting started

Bib search is standard on every Photohawk plan, alongside selfie search, time search and preview protection. If you run event galleries and want to try it, create a free Studio account and upload a test folder with the web uploader.