Women's Time Trial, I'm thinking USA, NED, NED (2) or GBR. Men's toss up between ITA and BEL, favouring ITA, Bronze between GBR, SVK, favouring GBR because it is pan flat
Women's 400m AUS, Men's 400 not sure
Womens 4 x1 AUS, USA, CHN Men's 4x1 USA, AUS, ITA CHN,
Women's 3 Syn CHN, ITA, GBR (I think this event is a bit soft under CHN, medals could go just about anywhere)
Sevens FRA or ARG, probably FRA, Bronze between NZL, FJI and IRL
Shooting I think maybe CHN
don't know enough about Fencing to guess, assume Italy will be strong, Korea?
So I think best day one will be CHN, AUS, USA in that order. ITA will show well, and GBR may unsually pick up few Day 1 medals, though they're most ly bronze or bust chances. IRL have a punchers chance in the Men's Sevens, which would be super cool.
biggest nailed on gold is China in the 3m Sycnchro, utter utter shock if they fail to realise that, followed by Dyggert in the Women's TT and Titmuss in the W400.
most intriguing event, apart from 7sRugby which I just love as a sport is the men's time trial - clear group of favourites on a pan flat course for specialists (as it should be) but all likely to have different back issues and stories. Ganna v Remco, Tadej v Josh T, Wout?