Nat Sciver hopes to crown her 50th cap by helping England Women to victory in Friday's Sky Live series decider against South Africa Women, at Canterbury.
The all-rounder, 25, says the world champions are determined to keep improving after levelling the three-match series in style with a 69-run success at Hove.
Tammy Beaumont and Sarah Taylor both hit centuries as England produced the perfect response from a seven-wicket defeat in Saturday's opening match at Worcester.
Reflecting on that win, Sciver said: "We were better in all departments. We knew we didn't play well at Worcester, and that can happen. South Africa are a really good side and we always knew we'd have to be at our best to win the series.
"The performance at Hove was more like it and it'd be great if we could continue that momentum at Canterbury."
England made one change for the second ODI, bringing in Sky Sports Cricket columnist Georgia Elwiss for Jenny Gunn, and have since added Kate Cross to the 14.
Lauren Winfield and Danielle Hazell have yet to get a game in the series - the pair were released to play for the England Women's Senior Academy on Thursday - and Sciver says the squad has impressive strength in depth.
"It's brilliant to see girls coming into the side like Georgia the other day and that's all we can hope for, that everyone puts in good performances and we keep pushing each other to improve as a side."
She added: "I'm really excited to make it to 50 ODI caps. It's come round pretty quickly, actually. With the World Cup last year we managed to play quite a few ODIs.
"It's an exciting day and hopefully I'll be able to put in a good performance. It's always special to reach a landmark like that and it would make a victory and a series win that bit sweeter.
"Sometimes it's not your day but I'd love to end this series with a good showing with bat and ball.
"It's brilliant to see the team come back from the first defeat and to see Sarah and Tammy perform as excellently as they did throughout the World Cup. And then the bowlers backed it up, which was great.
"We're confident of giving a good account of ourselves. Every time we go out there we want to do well for each other, do well for the team and play with a smile on our faces. Hopefully we can put that altogether."
Taylor has a milestone in her sights too - her century at Hove taking her to within 94 runs of becoming only the ninth woman and third from England, after Charlotte Edwards and Claire Taylor, to score 4,000 ODI runs.
Watch the third and final ODI between England Women and South Africa Women live on Sky Sports Cricket, Mix and Main Event from 1.30pm on Friday.