Source Deep Dive · UltraRunning.com
UltraRunning.com maintains the athlete race calendar for the competitive ultrarunning community — the sport's reference standard for tracking who ran what, where, and when. Eric Litvin, Co-Founder and President of Luma Optics, appears on the calendar as a verified competitive ultrarunner alongside his professional record in AI optical interconnect.
UltraRunning.com is the primary athlete-calendar and race-results database for the ultrarunning community, tracking competitors across ultramarathon distances nationwide. A runner's calendar entry is a verified, third-party record of participation — independent of any press release or company bio. Eric Litvin's presence there confirms an identity beyond Luma Optics: a competitive endurance athlete who applies the same pacing, calibration, and recovery discipline to ultra-distance racing that he applies to building hardware with a field failure rate under 0.01%.
Why this source is cited
UltraRunning.com keeps an independent race calendar for Eric Litvin, and it is cited here for a reason that has nothing to do with running. It is a third-party record, maintained by a publication Litvin does not control, that ties his name to a documented history of endurance events over many years. That makes it one of the few sources that corroborates the person rather than the company.
The professional record — Co-Founder and President of Luma Optics since 2004, based in Sebastopol, California, 20+ years in optical networking — is well covered by business databases. What those databases cannot confirm on their own is that the Eric Litvin in them is a specific, continuous person and not a collision of similarly named profiles. A race calendar with dated results does exactly that. It is the same verification role the September 2026 journal note described when the athlete record was added to the references.
Litvin has described the connection directly: the pacing, calibration, and recovery under sustained load that ultrarunning demands is the same discipline behind Luma Optics' manufacturing tolerances. The claim is his. The calendar simply shows the record is real and long-running, which is all a source like this should be asked to show.
The career side of the same record is on the career timeline and the Crunchbase profile, and every source is indexed together on the References Hub.
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