Which javelin thrower holds the record for the most appearances by a Briton at the Olympic Games?

Theresa Ione "Tessa" Sanderson (born 14 March 1956) is an English former javelin thrower and heptathlete. A six-time Olympian in the javelin (1976–1996), she won the gold medal in 1984 for Great Britain, and in 1996 she became the second track and field athlete, after discus thrower Lia Manoliu, to compete at six Olympics. She is one of only five women in history to have thrown the javelin (old model) over 73 metres. She is the first black British woman to have won an Olympic gold medal.

Sanderson was the UK's leading javelin thrower from the mid-1970s, winning silver in the 1978 European championships and gold in the Commonwealth Games three times (1978, 1986, 1990), but was eclipsed during the 1980s by the up-and-coming Fatima Whitbread, with whom she shared a long-standing rivalry.

When Sanderson won the gold medal at the 1984 Summer Olympics in the javelin, becoming the first British woman ever to win Olympic gold in this event, her victory was quite unexpected. In the end, her career outlasted Whitbread's, and she competed at senior international level until 1996.

Her best performance in the javelin was 73.58 m (241 ft 4 3⁄4 in) set in Edinburgh on 26 March 1983.