Unheralded Tamakasuga extended his unbeaten run Saturday to stay one win clear of Mongolian grand champion Asashoryu heading into the second week of the New Year Grand Sumo Tournament.

News photoEleventh-ranked maegashira Tamakasuga, right, forces Tosanoumi out of the ring on the seventh day of the New Year Grand Sumo Tournament on Saturday at Ryogoku Kokugikan. KYODO PHOTO

Asashoryu kept the 11th-ranked maegashira in his sights by tearing down compatriot Ama to improve to 6-1 but the chasing pack was cut to three after defeats for ozeki Chiyotaikai and sekiwake Kotomitsuki.