Isis Louise Van den Broek (born 28 December 2005) is a Dutch tennis player. She has career-high WTA rankings of No. 472 in singles, reached on 2 March 2026, and 360 in doubles, achieved on 24 August 2026.
Career From Driebergen, she trained at the BK Tennis Academy in Doorn and the tennis academy in Hilversum. She won the Dutch Indoor Youth Championships in 2021. She transitioned from junior tennis to the professional ranks in 2023, and won her first senior title in September 2023 when she defeated German Eva Marie Voracek in Haren.
In June 2025, she was awarded a wildcard into the qualifying stages at the Rosmalen Open in 's-Hertogenbosch, Netherlands, and defeated Nadiia Kolb of Ukraine and compatriot Lian Tran to progress to make her WTA Tour main-draw debut, but lost in the first round to fellow qualifier Elena-Gabriela Ruse.
ITF Circuit finals Singles: 5 (2 titles, 3 runner-ups) LegendW35 tournaments (0–1)W15 tournaments (2–3)Finals by surfaceHard (0–2)Clay (2–2) ResultW–LDateTournamentTierSurfaceOpponentScoreLoss 0–1 Aug 2023ITF Eindhoven, NetherlandsW15 Clay Merel Hoedt 6–3, 3–6, 2–6Win 1–1 Sep 2023ITF Haren, NetherlandsW15 Clay Eva Marie Voracek 7–6(5), 6–0Loss 1–2 Mar 2025ITF Monastir, TunisiaW15 Hard Carol Young Suh Lee 3–6, 6–4, 2–6Loss 1–3 Jun 2025ITF Alkmaar, NetherlandsW15 Clay Rose Marie Nijkamp 6–1, 3–6, 4–6Win 2–3 Jun 2026ITF Alkmaar, NetherlandsW15 Clay Margaux Maquet 6–4, 3–6, 6–2Loss 2–4 Sep 2026ITF Reims, FranceW35 Hard (i) Britt du Pree Walkover
Doubles: 14 (7 titles, 7 runner-ups) LegendW50 tournaments (0–1)W35 tournaments (3–0)W15 tournaments (4–6)Finals by surfaceHard (1–3)Clay (6–4)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScore Loss 0–1 Jun 2023ITF Alkmaar, NetherlandsW15 Clay Rose Marie Nijkamp Tilwith Di Girolami Chiara Scholl 2–6, 1–6Loss 0–2 Aug 2023ITF Eindhoven, NetherlandsW15 Clay Rose Marie Nijkamp Joy de Zeeuw Sarah van Emst 1–6, 6–4, [8–10]Win 1–2 Apr 2024ITF Telde, SpainW15 Clay Sarah van Emst Tilwith Di Girolami Laïa Petretic 6–4, 2–6, [10–2]Loss 1–3 Jul 2024ITF Kuršumlijska Banja, SerbiaW15 Clay Rose Marie Nijkamp Evgeniya Burdina Draginja Vuković walkoverWin 2–3 Sep 2024ITF Haren, NetherlandsW15 Clay Rose Marie Nijkamp Laura Böhner Mina Hodzic 4–6, 7–6(4), [10–6]Win 3–3 Sep 2024ITF Dijon, FranceW15 Clay Rose Marie Nijkamp Fabienne Gettwart Mina Hodzic 7–6(1), 6–4Loss 3–4 Oct 2024ITF Sant Vicenç de Torelló, SpainW15 Hard Rose Marie Nijkamp Joy de Zeeuw Ruth Roura Llaverias 6–2, 3–6, [9–11]Loss 3–5 Oct 2024ITF Villena, SpainW15 Hard Rose Marie Nijkamp Joy de Zeeuw Adrienn Nagy walkoverWin 4–5 Feb 2025ITF Manacor, SpainW15 Hard Sarah van Emst Jasmijn Gimbrère Alice Robbe 6–4, 6–4Loss 4–6 Jun 2025ITF Alkmaar, NetherlandsW15 Clay Rose Marie Nijkamp Loes Ebeling Koning Sarah van Emst 6–7(4), 3–6Loss 4–7 Jan 2026ITF Monastir, TunisiaW50 Hard Loes Ebeling Koning Yasmine Mansouri Elena Milovanović 2–6, 3–6Win 5–7 May 2026ITF Platja d'Aro, SpainW35 Clay Loes Ebeling Koning Britt du Pree Sarah van Emst 7–5, 6–4Win 6–7 Jun 2026ITF Ystad, SwedenW35 Clay Sarah van Emst Lucía Cortez Llorca Katerina Tsygourova 5–7, 7–6(3), [10–8]Win 7–7 Jun 2026Amstelveen Open, NetherlandsW35 Clay Sarah van Emst Joy de Zeeuw Antonia Stoyanov 6–4, 2–6, [10–7]
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