Maegashira Kotoeiho has emerged as one of the most surprising stories of the 2026 Natsu Basho, opening the tournament with a perfect 5-0 record and sharing the lead at Tokyo's Ryogoku Kokugikan with returning ozeki Kirishima.
The story behind the run is as compelling as the result itself. Sumo Stomp's daily analysis flagged Kotoeiho's improved belt grappling as the key technical upgrade behind the perfect opening week. His bout against Roga, in particular, drew attention for the way he managed close exchanges and converted positional advantages into clean wins. "Kotoeiho's belt grappling looking much improved" was the consistent refrain from analysts watching the first half of the basho.
Belt grappling, or yotsu-sumo, is one of the more technically demanding aspects of the sport. It requires a combination of grip control, balance, lower-body strength and tactical patience that takes years to refine. Wrestlers who excel at it tend to age well in the division, because the technique relies less on explosive tachiai power and more on positional control. Kotoeiho's improvements suggest a wrestler who has been refining the harder elements of his style rather than relying on what worked at lower divisions.
The path ahead becomes substantially harder. With Hoshoryu, Onosato and Aonishiki all sitting out the basho, Kotoeiho will not face any yokozuna or non-Kirishima ozeki this fortnight. But the second half of the tournament traditionally sees maegashira leaders pulled up to face higher-ranked opponents, and Kotoeiho can expect bouts against the surviving sanyaku and the returning ozeki himself before the basho is done.
That showdown with Kirishima looms as the most likely tournament-defining bout. The two are sharing the leaderboard, the schedulers will almost certainly stack them against each other in the closing days, and whichever wrestler holds his nerve in that match will probably take a substantial step toward the Emperor's Cup.
Wakatakakage, sitting at 4-1, is the most credible chaser. Kotoeiho will also have to manage rikishi who tend to find form in the back half of basho. Sumo's two-week schedule punishes wrestlers who peak early, and the maegashira charts are littered with examples of fast starts that faded to 9-6 or worse.
For Kotoeiho personally, however, the run is already a marker of progress. Five wins in five days against top-division opposition would be a significant achievement at any rank, and the technical improvements that have underpinned the run point to a wrestler who is genuinely growing inside the makuuchi rather than enjoying a lucky week.