Over two weeks of fantastic competition come to an end on Sunday as the Olympic Games reaches its conclusion - and Team GB have a number of chances to finish London 2012 in memorable style.

Here is Sports Mole's guide to the events you cannot afford to miss on the final day of action.

Modern Pentathlon from 8am

Team GB have every chance of a medal as reigning world champion Mhairi Spence competes in the modern pentathlon.

The 26-year-old Scot begins her bid for glory in the fencing event at 8am.

Athletics at 11am

British competitor Scott Overall is hoping to upset the odds as the men's marathon brings down the curtain on the athletics programme.

Overall qualified by virtue of a fifth-place finish at the Berlin marathon last year and would be delighted with a similar result today.

Mountain Bike at 12.30pm

Liam Killeen competes in his third Olympic cross-country mountain bike event for Team GB.

After coming fifth in Athens eight years ago, Killeen has an outside chance of a medal in a strong field, which features two-time defending champion Julien Absalon.

Boxing at 2.15pm

Welsh star Fred Evans faces Kazakhstan's Serik Sapiyev in the men's welterweight final as he aims to become Team GB's third boxing gold medalist.

Basketball at 2.50pm

A star-studded United States team face Spain in the men's basketball final in a re-match from Beijing.

LeBron James, Kobe Bryant and co. aim to emulate the "Dream Team" as they take on Spanish NBA star Pau Gasol in an enciting clash.

Boxing at 3.15pm

Anthony Joshua has the chance to end Great Britain's memorable Olympics in spectacular fashion when he goes for gold in the men's super heavyweight final.

The Londoner is matched against tough Italian Roberto Cammarelle, the defending Olympic champion.