Tanni Grey-Thompson overcame an attack of nerves as she prepared for the T53 classification of the women's 100 metres at the Paralympics in Sydney.

The Redcar-based runner landed the second of her targeted four gold medals following her 800 metres success on Friday.

Grey-Thompson produced an outstanding performance to deny hot favourite Cheri Blauwet by four one-hundredths of a second in a time of 17.29secs.

''The 100 metres is my weakest event as I'm shaky at the start,'' said Grey-Thompson, who contests the 200 metres and 400 metres later in the week.

''As soon as I was up with Cheri I knew I had a chance, I was able to sit alongside her before pulling away.

''It's so nice to get this out of the way as I was so nervous beforehand.''

The fourth day produced a golden double for British athletes as 17-year-old Lloyd Upsdell gained what he hopes will be the first of many Games golds in the T35 classification of the men's 220 metres.

Upsdell is appearing in his first Paralympic games after shooting to prominence as a 15-year-old in the world championships.

The Essex teenager shattered his own world record, clocking 27.17 seconds, and as a bonus his Nottingham University training partner Richard White of Bromsgrove ran on to land the bronze medal.

Upsdell said: ''I wasn't expecting a world record, I came to win gold and I've done that.''

White described his bronze medal performance as ''superb'' and added: ''It's fantastic to get a medal in my first Paralympics.''

British hopes of further golds from Danny Crates and Stephen Payton in the T46 classification of the men's 400 metres and T38 classification of the men's 200 metres respectively were dashed when both athletes came third