Record #00356Sports archive
Deepest Underground Marathon
On 25 October 2025, BecomingX, ICMM and Boliden jointly staged a 42.195-km marathon in Sweden's Garpenberg mine, reaching 1,118.56 metres below ground, the deepest marathon venue on record.
ARCHIVE VISUAL / 01
NOT TO SCALE
Current Record
1,118.56m
Current record value
- Holder
- BecomingX
- Location
- Garpenberg zinc mine, Sweden · Garpenberg mine
- Start date
- 2025-10-25
- Record status
- VerifiedView verification details ↗Report an issue
Overview
Archive NoteFifty-five runners from 18 countries covered 11 laps of a certified 42.195-km route inside Boliden's Garpenberg zinc mine in Sweden.
Guinness separately records a deepest underground team marathon distance run at 1,082.30 metres, which is a distinct category from this 1,118.56-m deepest marathon. The recognized co-organizers were BecomingX, ICMM and Boliden.
Record history
1 Milestones- 1,118.56 mBecomingXGarpenberg zinc mine, SwedenCurrent Record
Sources
Evidence & ReferencesVerification basis and limitations
VerifiedThe record conclusion has sufficient verification support.
Basis: direct confirmation by an authority
The Guinness record page certifies the 1,118.56-m depth and all three co-organizers of the 2025 Garpenberg underground marathon.
- Verification assessment
- 2026-11-05
- Last editorial review
- 2026-11-05
Current Entry identifies the current entry in this archive; it does not establish that the record is still held today.
The record value on this page is organized from the public sources above. Measurement methods may differ; JiLuDB follows the unified method described for each entry.
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