Chennai, Aug 28 - Local boy Ramkumar Ramanathan ousted top seed Saurabh Singh of Delhi 6-3, 1-6, 6-0 en route to the final of the boys under-18 singles of the Adidas MCC National Junior Hard Court tennis championships here Friday.

Ramanathan next faces seventh-seeded Ronit Bisht of Delhi, who knocked out second seed Mohit Mayur of Tamil Nadu 2-6, 6-2, 7-6 (4).

In the girls under-14 semi-finals, top seed C. Sai Samhitha of Tamil Nadu went down to Karnataka's Sansitha Nandakumar, seeded ninth, 0-6, 6-4, 2-6, while second seeded K.Bhuvana of Tamil Nadu overcame Rutuja Bhosle of Maharashtra 6-4, 6-1.

Other results:

Boys under-14 (semi-finals): Abhishek Alla (Andhra) beat Neeraj Elangovan (Tamil Nadu) 3-6, 6-2, 6-4; Shaik Abdullah (Andhra) beat Digvijay Singh Naruka (Chandigarh) 6-2, 6-7 (7), 6-3.

Girls under-18 (semi-finals): 2-Ankita Raina (Gujarat) beat 3-Nimisha Mohan (Karnataka) 6-3, 6-2; 6-Prarthana Thombare (Maharashtra) beat 4-Aishwarya Agarwal (Madhya Pradesh) 6-4, 6-3.