American Coryn Rivera edged out Marianne Vos in a thrilling sprint finish to win stage two and move into the overall lead of the Women's Tour.
A reduced peloton contested the sprint after a late climb on the 145km stage, with Rivera's bike throw denying former champion Vos on the line in Daventry and Christine Majerus finishing third.
Rivera leads the general classification by 15 seconds over Britain's Dani Rowe.
Rowe came fourth on stage two to retain the Best British Rider blue jersey.
Three-time world road race champion Vos is a second further back on WaowDeals team-mate Rowe in the overall.
Stage one winner Jolien D'Hoore finished nine minutes 29 seconds down on Rivera to fall down the general classification.
The Women's Tour has more than doubled its prize fund this year to match the sums awarded in the men's race, with prize money for the five-day race now standing at 90,000 euro (£80,355).
The 17-team event, now in its fifth edition, forms part of the UCI Women's WorldTour and concludes on Sunday.
Friday's stage three is the longest of the race, running 151km from Atherstone to Royal Leamington Spa.
Stage two result:
1. Coryn Rivera (US/Team Sunweb) 4hrs 8mins 06secs
2. Marianne Vos (Ned/WaowDeals) same time
3. Christine Majerus (Lux/Boels-Dolmans)
4. Dani Rowe (GB/WaowDeals)
5. Gracie Elvin (Aus/Mitchelton-Scott)
General classification after stage two:
1. Coryn Rivera (US/Team Sunweb) 7hrs 22mins 22secs
2. Dani Rowe (GB/WaowDeals) +15secs
3. Marianne Vos (Ned/WaowDeals) +16secs
4. Amy Pieters (Ned/Boels-Dolmans) +17secs
5. Christine Majerus (Lux/Boels-Dolmans) +19secs
6. Elisa Longo Borghini (Ita/Wiggle High5) +21secs
7. Eugenia Bujak (Slo/BTC City Ljubljana) +23secs
8. Eva Buurman (Ned/Trek-Drops) same time
9. Maria Giulia Confalonieri (Ita/Valcar PBM)
10. Pauline Ferrand Prevot (Fra/Canyon-SRAM Racing)