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California Institute of Technology

2026-27 Caltech Men's Tennis Roster

Kiki Hall

Jan Safrata

  • Height 6-3
  • Year Sophomore
  • Hometown Prague, Czech Republic
  • High School Gymnazium Evolution
  • Major Applied and Computational Mathematics,Computer Science minor

Biography

Research and STEM Activities
Involved in research with Professor Tony Yue Yu and was selected as an **Ian Agol SURF Fellow** for Caltech’s Summer Undergraduate Research Fellowship program... Summer research focused on multi-agent reinforcement learning and economic coordination, where he developed and analyzed a multi-agent market environment designed to study how learning agents coordinate under competition, scarcity, and endogenous liquidity... Pursued research in zero-shot coordination and world-model adaptation... First author of an ICLR 2027 submission, “Test-Time Policy Improvement for Zero-Shot Coordination,”** investigating how agents can adapt to previously unseen partners at test time, and a co-first author on a **NeurIPS 2026 workshop submission**...  Studying when online world models should be updated during deployment... Co-founded the BLIND-SEE initiative, which is a platform for research and development of assistive technologies and devices for visually impaired people...  Interned at the Institute of Physics of the Czech Academy of Sciences, where he researched Ni-phosphite decomposition kinetics and co-authored both a DMSRE-33 conference paper and a Journal of Physics: Conference Series article with senior researchers.

Prior to Caltech
Academic Honors: Valedictorian... 3rd Grand Award in Embedded Systems at Regeneron ISEF 2025 for the Development of Assistive Technologies for the Visually Impaired Using AI
Athletic Honors: 3rd place in singles at the National Championships... 2nd place in doubles at the National Championships...  2nd place at the National Team Championships.

Personal
Enjoys surfing and basketball... chose Caltech because it is ideal in every important aspect: unparalleled research opportunities, a close-knit community, and exceptional education.

Statistics

Season Statistics

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Historical Player Information

  • 2025-26First-Year

  • 2026-27Sophomore

    6'3"