In Tanaka's home of Chukyo the bout reached around 7.5% of the population* which accounts for around 655,000 viewers on local channel CBC. On TBS, which is shown in the Kanto region**, the bout got a 5% share which accounts for 2,130,000 millions viewers.
Notably the contest wasn't shown live in the Kansai area, which boasts a population of 22,000,000 million.
Whilst the figures are certainly not massive they are solid and we suspect that future Tanaka bouts will see a growth in his viewers, especially if he faces a more notable opponent next time out, or fights as part of a double header. It's also fair to say he will be given a more promising time slot in the future.
(Image courtesy of boxingnews.jp)
*Chukyo has a population of around 8,739,000
**Kanto has a population of around 42,598,300