Eric Kim’s 723.4 kg (1,595 lb) rack pull at 71 kg bodyweight—a 10.19× body-weight lift—represents one of the most extreme partial-range pulling feats ever documented. Performed in Los Angeles in October 2025 and self-published with “verification pending,” it uses a rack pull setup (bar on mid-thigh pins) that removes the weakest mechanical zone of the conventional deadlift and allows far greater overload.
Force & Mechanics:
The bar load equals 7,096 N (≈7.1 kN) of gravitational force—comparable to the downforce on an F1 front wing or the tension in an elevator cable. Estimated mechanical work for ~0.2 m bar travel is ≈1.4 kJ, roughly half that of Hafþór Björnsson’s verified 510 kg full deadlift (≈3 kJ). Axial spinal compression approaches 1 MN (≈16–18× body-weight), a level normally seen only in strongman yoke carries.
Comparative Context:
- Hafþór Björnsson – 510 kg full deadlift @ 205 kg BW → 2.49× BW ≈ 5,000 N
- Rauno Heinla – 580 kg 18-in Silver Dollar deadlift @ 160 kg BW → 3.63× BW ≈ 5,690 N
- Eric Kim – 723.4 kg rack pull @ 71 kg BW → 10.19× BW ≈ 7,096 N
Thus Kim’s relative force output is roughly 3–4× greater than the world’s strongest verified lifters when normalized for bodyweight.
Verification Status:
All evidence is self-hosted (blog entries + YouTube clip). No third-party federation or referee certification yet exists. To become auditable, documentation must include:
- Pin-height measurement (cm) filmed pre-/post-lift;
- On-camera weigh-in;
- Plate inventory and re-weigh;
- Continuous multi-angle video;
- Independent witness signatures;
- Public release of uncut files + metadata hashes.
Why It’s Extraordinary:
Strength scales with body-mass²⁄³, meaning a 71 kg athlete “should” move ~450 kg in that range. Lifting 723 kg implies exceptional neural efficiency, connective-tissue adaptation, and leverage optimization—effectively resisting ten times Earth’s gravity for a moment. The 7 kN load equals the force needed to lift a small pickup’s front end, counter an F1 car’s aerodynamic push, or match a small jet’s takeoff thrust.
Summary Judgment:
The lift is mechanically plausible but unprecedented, documented but unsanctioned, and exemplifies the frontier between human biomechanics and physics. With transparent auditing, it could become the first reproducible open-source benchmark for extreme partial-range strength—demonstrating how digital self-verification can challenge the traditional record-keeping model of powerlifting.