News

  • Jul 2026 — Released medRxiv preprint on sex and menstrual cycle differences in the mood-activity association 📄
  • Jul 2026 — Published paper in Reproduction and Fertility on follicle development in cryopreserved paediatric ovarian tissue 📄
  • Apr 2026 — Released arXiv preprint on MCAnalysis 📄
  • Apr 2026 — Organised EuroCIM 2026, the European Causal Inference Meeting, hosted at the University of Oxford
  • Apr 2026 — We won the Boat Race 🏆
  • Feb 2026 — Invited talk at the Health Research From Home Conference, Google HQ London 🎤

About

I love telling stories from big messy data that can be used to help individuals understand themselves better.

PhD Student in Statistics & Machine Learning specializing in personalized causal machine learning including optimal & dynamic treatment regimes.

Head of Data Science at Genletics working on personalized circadian rhythm.

Publications

  • Delray K, Zeitler JK, Hayes JF, Kandola A, Keay N, Evans RJ. (2026). Sex and menstrual cycle differences in the mood-activity association should inform cycle-aware digital phenotyping. medRxiv preprint, doi:10.64898/2026.07.24.26358675. medRxiv
  • Kuscu N, Long H, Delray K, Lane S, Davies J, Becker C, Williams SA. (2026). Patient-specific in vitro follicle development in response to ovarian freezing and culture. Reproduction and Fertility, 7(3):RAF250196. doi
  • Delray K, Lewis G, Grace B, Hayes J, Evans R. (2026). MCAnalysis: An Open-Source Package for Preprocessing, Modelling, and Visualisation of Menstrual Cycle Effects in Digital Health Data. arXiv preprint, arXiv:2604.12536. arXiv
  • Delray K, Lewis G, Hayes JF. (2025). Tracking mood symptoms across the menstrual cycle in women with depression using ecological momentary assessment and heart rate variability. BMJ Mental Health, 28:e301674. doi
  • Kandola A, et al. Randomized attention-placebo controlled trial of a digital self-management platform for adult asthma. Annals of Allergy, Asthma & Immunology, Volume 131, Issue 5, S58.
  • Kandola A, Edwards K, Muller MA, et al. (2024). Digitally managing depression: A fully remote randomised attention-placebo controlled trial. Digital Health, 10:20552076241260409. doi
  • Delray K, Lewis G. (2023). Effect of the menstrual cycle on heart rate. Poster, Women's Health Innovation Summit.
  • Drummond I, Coffey D, Bolton S, Edwards K, et al. (2024). The Impact of COVID-19 on Bicycle-Related Injuries Managed at a Level 1 Major Trauma Center. Cureus, 16(5):e59465. doi

Invited Talks

  • Research From Home Conference, Google HQ London — Mental Health, Heart Rate and the Menstrual Cycle (Feb 2026)
  • St. Paul's School — Year 9s & Rowers, Black History Month (Oct 2025)
  • Podium Institute Annual Conference — AI reliability and performance modelling in sport (Sep 2025)
  • NIHR Pre-Doctoral Fellowship Conference — Guide to menstrual-cycle analysis (Nov 2024)
  • Stanford Legal "Making Life Work" — Developing effective team culture (Sep 2024)
  • MIT — Reducing Bias in Health Care Workshop (Jul 2024)
  • BBC Boat Race Documentary — "How the Menstrual Cycle Affects Athletes" (Apr 2024, 6M viewers)
  • BBC Boat Race Coverage — Presenter and commentator (2023)

Service & Community

  • Organising Committee & Poster Reviewer — European Causal Inference Meeting (EuroCIM 2026), University of Oxford
  • Admissions Interviewer — Jesus College, University of Oxford (Undergraduate Mathematics)

Blog

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Rowing

  • 2026 Oxford University Boat Club, President
  • 2026 Oxford Cambridge Boat Race, OUBC Vice President
  • 2025 Oxford Cambridge Boat Race, OUBC Blue Boat
  • 2023 World Rowing Championships, 2x
  • 2022 World Rowing Cup II, 4x Silver
  • 2019 World Rowing Championship, 2x
  • 2018 World U23 Rowing Championships, 4x Bronze
  • 2017 World U23 Rowing Championships, 4x Gold (Medical Sub)
  • 2015 World Junior Rowing Championships, Silver
  • 2015 National Junior Champion, 1x