Identium provides end-to-end RFID race timing for marathons, cycling events, duathlons and triathlons across India. Every participant wears a UHF timing tag — integrated into the numbered bib or fixed to the shoe — and reader mats and portals at the start, splits and finish capture each crossing automatically, with results posted online and linked to each runner.
We supply the complete service: international-standard bibs with integrated tags, timing equipment and crew on event day, and instant results publication.
See our detailed RFID race timing systems page and RFID race timing tags, or contact us to plan timing for your event.
Specifying a Race Timing Setup: Tags, Mats and Read Zones
Race timing runs on passive UHF RFID. In India that means the 865-868 MHz band, delicensed for RFID under the 2021 WPC short-range-device rules, using EPC Gen2 (ISO/IEC 18000-63) tags — the family marketed as RAIN RFID. Confirm the current band and approval position with WPC before you fix a specification. The choice is a practical one: a finish-line mat has to separate several athletes crossing shoulder to shoulder in the same second, at speed, with no line of sight and nothing for the athlete to do. HF at 13.56 MHz and NFC typically read at centimetre distances, which is no use at a finish line, and LF at 125/134 kHz is slower still.
The counter-intuitive part is that race timing is one of the few UHF applications where maximum range works against you. Passive UHF can reach roughly 10-15 m from a well-placed fixed reader in clear conditions, but a tag detected several metres before the line tells you nothing precise about when the athlete crossed it. Mat antennas earn their place because they project a tight, confined field close to the ground, so the read maps closely to the crossing itself. Polarisation matters for a separate reason: a shoe tag, an ankle band and a bib tag all present at different angles, so a circular-polarised mat holds reads that a linear-polarised panel can drop.
Two further constraints shape the build. The human body absorbs UHF energy, which is why bib tags are foam-backed to stand the inlay off the chest, and why wrist-worn timing tags use a spacer or ceramic construction to keep performance on-body. And the line is dense, so plan redundancy rather than assuming a single clean pass: a second mat set back from the first, or a mat paired with an overhead antenna, lets one catch what the other misses. Real read behaviour is site-dependent — wet ground, crowd density, metal barriers and tag placement all move it — so walk and run the layout as a test before race morning.
| Tag format | Worn on | Reuse | Best suited to |
|---|---|---|---|
| Foam-backed bib tag | Race bib, chest | Disposable | Road runs, half and full marathons |
| Lace shoe tag | Threaded through the laces | Disposable | Large fields timed off ground-level mats |
| Adhesive shoe tag | Shoe upper | Disposable | Mass-participation 5K and 10K |
| Ankle band | Ankle, over wetsuit or sock | Reusable | Triathlon and duathlon transitions |
| Silicone or ABS wristband | Wrist | Reusable | Multi-day and closed-loop events |
Timing tags are made at our New Delhi facility, with event artwork, bib numbering and EPC encoding done in-house and every unit tested before dispatch; custom formats typically take five to ten days. The UHF readers and antennas we supply are WPC-approved for India’s licence-exempt UHF band, and every reader ships with an SDK, demo app and source code if you are feeding crossings into your own results platform.
Related reading
- Planning mat and gantry positions? Read our guide to RFID antenna gain and polarisation.
- Sizing your detection zone? See how to scope read range and environment.
- Timing a multi-day event? Look at RFID wristbands for events and festivals.