There were upsets galore as the tussle for ascendancy was truly spirited in various age categories of the ISA Junior Open Circuit I, a two-star national event, here on Friday.

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Chennai:
Select results: Semi-finals Boys: U-17: Navaneeth S Prabhu (3/4) bt Shreemann Raghavan (1) 7-11 9-11 11-6 11-7 11-6; U-15: Parthiv Yagnesh Natarajan (1) bt Ashvin Ganesh (3/4) 11-8 11-4 11-4; U-13: KS Arihant (1) bt Aakash Kannan (3/4) 11-1 11-4 11-8.
Among the upset results, the most striking was the fall of Shreemann Raghavan, the top seed. He fell at the hands of Navaneeth S Prabhu, a 3/4 seed, in the boys U-17 section. Similarly, in the girls U-15 category, S Akshya Sri (3/4 seed) ousted top seed R Pooja Aarthi.
Select results: Semi-finals Boys: U-17: Navaneeth S Prabhu (3/4) bt Shreemann Raghavan (1) 7-11 9-11 11-6 11-7 11-6; U-15: Parthiv Yagnesh Natarajan (1) bt Ashvin Ganesh (3/4) 11-8 11-4 11-4; U-13: KS Arihant (1) bt Aakash Kannan (3/4) 11-1 11-4 11-8.
Girls: U-17: Trina Iris (1) bt Netra Krishna (3/4) 11-6 9-11 11-5 12-10; U-15: S Akshaya Sri (3/4) bt R Pooja Aarthi (1) 11-4 2-11 11-3 8-11 11-6.