Japanese Record of consecutive 22 week sub-3s

Today, I ran the UP RUN Katsushikaku Arakawa Kasenjiki Horikiribashi Marathon in Tokyo, and my time was 2:56:33. It's very flat course. The participant number for Full Marathon was 38. The total participant number was ~500.
As I achieved sub-3 today, I achieved consecutive 22-week sub-3s, and achieved 28th sub-3 in these 22 weeks. The consecutive 22-week sub-3s may be the Japanese Record as far as I know.
I don't know the World Record on this. If you know it, please let me know.

Below pictures are finisher certificate, participation award, and 1st place awards.