The women's 100 metres hurdles event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 9 and 10 July.

Records Prior to the competition, the records were as follows: European U23 record12.59Munich, West Germany8 September 1972Championship U23 record12.70Gävle, Sweden12 July 2019

Results Round 1 Qualification rule: First 4 in each heat (Q) and the next 4 fastest (q) advance to the Semi-Finals.

Wind:Heat 1: -0.3 m/s, Heat 2: -0.2 m/s, Heat 3: +0.5 m/s, Heat 4: -1.1 m/s, Heat 5: -0.4 m/s Rank Heat Name Nationality Time Notes 1 1 Cyréna Samba-Mayela 12.98 Q 2 2 Zoë Sedney 13.08 Q 3 4 Pia Skrzyszowska 13.13 Q 4 3 Laëticia Bapté 13.19 Q 5 3 Klaudia Wojtunik 13.29 Q 6 5 Sacha Alessandrini 13.41 Q 7 5 Jenna Blundell 13.43 Q 8 3 Elena Carraro 13.44 Q 9 3 Anastasia Davies 13.45 Q 10 1 Markéta Štolová 13.47 Q 11 2 Xenia Benach 13.50 Q 12 5 Ida Eikeng 13.52 Q 13 4 Şevval Ayaz 13.59 Q 14 2 Tereza Elena Šínová 13.59 Q, =SB 15 4 Anja Lukić 13.62 Q 16 2 Giulia Guarriello 13.63 Q 17 2 Milica Emini 13.65 q 18 1 Dafni Georgiou 13.67 Q 19 1 Elba Parmo 13.68 Q 20 3 Nikol Andonova 13.72 q, PB 21 4 Andrea Zabloudilová 13.76 Q 21 5 Zuzanna Hulisz 13.76 Q 23 4 Saara Keskitalo 13.77 q 24 1 Julia Wennersten 13.78 q 25 4 Ingrid Pernille Rismark 13.83 PB 26 5 Larissa Bertényi 13.92 27 1 Kristina Stensvoll Reppe 13.93 28 5 Anastasiya Osokina 13.93 29 3 Noora Juslin 13.94 30 3 Fatumata Baldé 14.07 31 2 Amanda Hansson 14.07 32 2 Catarina Karas 14.17 33 3 Lovisa Karlsson 14.23 SB 34 1 Beyzanur Yavuz 14.25 35 5 Paula Sprudzāne 14.27 4 Tara Keber

Semifinals Qualification rule: First 2 in each heat (Q) and the next 2 fastest (q) advance to the Final.

Wind:Heat 1: -2.2 m/s, Heat 2: -2.1 m/s, Heat 3: +0.8 m/s Rank Heat Name Nationality Time Notes 1 3 Pia Skrzyszowska 13.10 Q 2 2 Zoë Sedney 13.12 Q 3 1 Cyréna Samba-Mayela 13.15 Q 4 3 Laëticia Bapté 13.31 Q 5 1 Klaudia Wojtunik 13.31 Q 6 2 Markéta Štolová 13.42 Q 7 2 Sacha Alessandrini 13.46 q 8 3 Anastasia Davies 13.52 q 9 3 Şevval Ayaz 13.52 10 1 Ida Eikeng 13.53 11 3 Xenia Benach 13.56 12 2 Anja Lukić 13.57 13 2 Elena Carraro 13.61 14 2 Zuzanna Hulisz 13.64 15 1 Jenna Blundell 13.67 16 3 Tereza Elena Šínová 13.69 17 3 Nikol Andonova 13.73 18 1 Julia Wennersten 13.75 19 1 Giulia Guarriello 13.78 20 2 Saara Keskitalo 13.78 21 2 Dafni Georgiou 13.79 22 3 Milica Emini 13.82 23 1 Elba Parmo 14.01 24 1 Andrea Zabloudilová 14.05

Final

Wind: –0.9 m/s Rank Lane Name Nationality Time Notes 6 Pia Skrzyszowska 12.77 PB 3 Cyréna Samba-Mayela 12.80 8 Klaudia Wojtunik 12.97 PB 4 5 Zoë Sedney 13.14 5 1 Sacha Alessandrini 13.15 6 4 Laëticia Bapté 13.27 7 7 Markéta Štolová 13.28 SB 8 2 Anastasia Davies 13.53

References