Olym-Picks: Sunday's Top Tips at London 2012

Women's water polo: Russia vs Hungary - 2:50pm

Water polo is a big deal in Hungary: the Magyars have won the last three men's Olympic competitions and their best players are national heroes. The women's team hasn't enjoyed quite the same level of success, but they should have too much for Russia tonight.

The form guide initially seems to favour Russia, who have two wins to Hungary's one, but this is misleading. Russia's wins came over the relatively modest Team GB and Italy sides, while Hungary have faced powerhouses China and USA. In addition, Russia have not scored more than eight goals in a single match, while Hungary have scored at least eleven in all of theirs. Back Hungary at 2.80.

Men's boxing: Luke Campbell (Team GB) vs Detelin Dalakliev (Bulgaria) - 9pm

Team GB's boxers have enjoyed a great Olympic Games so far, impressing in front of a partisan home crowd. Bantamweight fighter Luke Campbell is in action tonight against Bulgarian Detelin Dalakliev, hoping to book a place in next week's semi-finals.

Campbell edged past Italian Jahyn Vittorio Parrinello in the last round, but faces a much tougher challenge tonight. Dalakliev, who is seeded sixth, was thoroughly impressive against Ibrahim Balla and will be keen to add a Team GB scalp to his collection. The 3.50 available on the Bulgarian looks good value.

Athletics: women's 400m final - 9:10pm

This final sees Team GB's Christine Ohuruogu defend the title she won in Beijing four years ago. Despite qualifying in style, she's out at 9.00 to take the gold this evening, an indication of the competitiveness of the field.

American athlete Sanya Richards-Ross is the big favourite at 1.55, with world champion Amantle Montsho a tempting 9.00. Also worth considering is Antonina Krivoshapka; the Russian set the quickest time in qualifying and is priced at 4.75.