Beijing’s humanoid half-marathon is evolving from a stunt into a serious speed benchmark

Hot take: 2027 is more likely to deliver another noticeable step forward than a clean leap to 35 minutes, because sustained endurance is a much harder problem than a one-off sprint.

• –The trajectory is real: the winning time collapsed from 2:40:42 in 2025 to 50:26 in 2026, so the event is clearly benefiting from fast iteration.
• –A 35-minute finish would require sustained performance near elite human half-marathon pace, which is far beyond what current humanoids have demonstrated over long durations.
• –The bottlenecks are not just leg speed; battery density, thermal management, actuator duty cycle, fall recovery, and course reliability all matter.
• –Expect specialized race robots, battery swaps, or highly tuned prototypes before you see broadly capable humanoids holding that pace end to end.
• –The event is valuable as a public benchmark, so even if the headline time plateaus, the race is likely to keep attracting funding and attention.