Emma Raducanu is in from 50/1 to 20s for the Sport Personality of the Year award after her run into the second week of the US Open.
Raducanu's last-16 opponent is American Shelby Rogers, a surprise winner over Ashley Barty in the previous round.
The Brit is now as short as 9/1 to win her maiden Major, with second seed Aryna Sabalenka the 12/5 favourite having breezed past Elise Mertens to reach the quarter-final.
Even a US Open win would struggle to unseat Tom Daley at the head of the SPOTY betting, however.
The diver is a 6/4 shot following his Tokyo exploits.
Planet Sport Bet can't look past Novak Djokovic for the men's title at Flushing Meadow, with the Croat in from 8/11 at the start of the tournament to 8/13.
Djokovic faces unheralded American Jenson Brooksby next up.
F1: Verstappen's title odds cut
Max Verstappen is now 8/13 from 5/6 to win the Drivers Championship after winning his home Grand Prix in the Netherlands.
Verstappen leads the drivers' championship by three points from Lewis Hamilton who conceded the team's strategy calls were not as good as they could have been at Circuit Zandvoort.
The British driver is now out to 6/5 from 10/11 to retain his title.
Soccer: England closing in on Qatar
Planet Sport Bet have cut England's odds for the FIFA World Cup from 8/1 to 7s following successive 4-0 wins.
A much-changed line-up beat Andorra on Sunday night to put the European Championship runners-up in good heart ahead of Wednesday's clash with Poland.
A win in Warsaw would potentially put England eight points clear at the top of Group I with only four matches remaining.
Gareth Southgate's men are 1/50 to win the group.
Horse racing: Baaeed joint favourite for QEII Stakes
Following Baaeed's impressive performance in winning the Prix Du Moulin at Longchamp on Sunday, the three-year-old son of Sea The Stars has shortened from 5/2 to 2/1 to win the QEII Stakes on Champions Day at Ascot next month.
Baaeed shares favouritism with Palace Pier, while Poetic Flare is next best at 11/2.