An impressive swim has put modern pentathlete Samantha Murray into third place heading into the show jumping phase of the competition.
Murray's time of two minutes 08.20 seconds for the 200m freestyle was good enough for second place in the event and saw her into a strong position.
Mhairi Spence was a couple of seconds off her best but posted a decent time of 2min 16.51sec to move up to ninth in the standings ahead of the show jumping phase, which is a strong event for both women.
Murray was just touched out for the win by Hungary's Sarolta Kovacs, whose time of 2.08.11 was a new Olympic record, although her poor fence meant she was still well off the pace.
The leader after two events was Hungary's Adrienn Toth on 2132 points, 16 ahead of Brazil's Yane Marques, with Murray a further 20 points back.
World number one Laura Asadauskaite was well placed in fourth, a place ahead of three-time world champion Amelie Caze from France, but defending champion Lena Schoneborn had some work to do in 16th.
Spence and Murray produced decent performances in the fencing at the Copper Box.
Scottish star Spence's tally of 19 wins from 35 bouts was a couple short of what she would have hoped for but good enough for joint 11th place. Fencing is often Murray's weakest event and she began by losing her first seven fights, but the Lancastrian recovered very well to end up with 18 wins and 17 defeats, putting her joint 16th.
The fencing was won by Latvia's Elena Rublevska with 25 wins, which earned her 1000 points, while Toth was one win behind.
The woman who was probably happiest, though, was Lithuania's Asadauskaite, who often makes up a lot of places in the final combined run and shoot, but she may not need to after finishing third in the fencing with 23 wins.