|Full name||Pénélope Julie Vlasto Serpieri|
|Born||8 August 1903|
|Died||2 March 1985 (aged 81)|
|Highest ranking||No.8 (1923)|
|Grand Slam Singles results|
|French Open||SF (1925)|
|Grand Slam Doubles results|
|French Open||W (1925, 1926)|
|Grand Slam Mixed Doubles results|
|French Open||F (1925)|
Pénélope Julie "Diddie" Vlasto Serpieri (French pronunciation: [ʒyli vlastɔ]; 8 August 1903 – 2 March 1985) was a female tennis player from France. She won the silver medal at the Paris Olympics in 1924 in women's singles, losing the final to Helen Wills Moody. Vlasto also won the version of the French national championships in 1924 that was open only to French nationals. She was a doubles partner of Suzanne Lenglen in many doubles tournaments during the early 1920s.
She married Jean-Baptiste Serpieri on 17 February 1927.
Grand Slam finals
Doubles (2 titles)
|Win||1925||French Championships||Clay||Suzanne Lenglen|| Kitty McKane
|6–1, 9–11, 6–2|
|Win||1926||French Championships||Clay||Suzanne Lenglen|| Kitty McKane
Mixed doubles (1 runner-up)
|Loss||1925||French Championships||Clay||Henri Cochet|| Suzanne Lenglen
Grand Slam singles tournament timeline
|Australia||A||A||A||A||A||A||A||A||A||0 / 0|
|France1||QF||NH||SF||2R||A||A||A||A||1R||0 / 4|
|Wimbledon||4R||A||A||SF||A||A||2R||1R||A||0 / 4|
|United States||A||A||A||A||A||A||A||A||A||0 / 0|
|SR||0 / 2||0 / 0||0 / 1||0 / 2||0 / 0||0 / 0||0 / 1||0 / 1||0 / 1||0 / 8|
1Through 1923, the French Championships were open only to French nationals. The World Hard Court Championships (WHCC), actually played on clay in Paris or Brussels, began in 1912 and were open to all nationalities. The results from that tournament are shown here for 1923. The Olympics replaced the WHCC in 1924, as the Olympics were held in Paris. Beginning in 1925, the French Championships were open to all nationalities, with the results shown here beginning with that year.
- Performance timelines for all female tennis players who reached at least one Grand Slam or Olympic singles final
- Julie Vlasto at the International Tennis Federation
- Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill. "Julie Vlasto". Olympics at Sports-Reference.com. Sports Reference LLC.
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