Runner Fiona O'Keeffe Underwent Hamstring Repair Surgery
The 28-year-old athlete faces a recovery period that leaves her status for the 2026 TCS New York City Marathon uncertain.
Updated on Oct. 14, 2026 in Running
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Professional runner Fiona O'Keeffe has undergone surgery to repair a fully retracted hamstring tendon. The procedure, which follows a partial tear that worsened over time, casts doubt on her ability to compete in the upcoming New York City Marathon.
Why it matters
Hamstring tears, particularly those that progress to full retraction, require surgical intervention to restore structural integrity and function. Managing this recovery is essential for high-performance athletes to prevent long-term mobility issues.
A late September MRI confirmed the progression of a partial hamstring tear, sustained prior to the April 2026 Boston Marathon, into a fully retracted tendon tear. This clinical finding necessitated the recent surgical repair.
The players
Fiona O'Keeffe
A 28-year-old professional long-distance runner who previously finished the 2025 New York City Marathon in 2:22:49.
Steadman Clinic
A medical facility in Vail specializing in orthopedic surgery and sports medicine care for elite athletes.
The details
The procedure involved a proximal hamstring repair, a surgery used to reattach the tendon to the ischial tuberosity of the pelvis. When a tendon fully retracts, the muscle can no longer generate force effectively or maintain stability during high-impact activities like distance running. Surgeons at the Steadman Clinic utilized this repair to restore the anatomical connection and prevent chronic muscle atrophy or weakness.
Timeline
April 2026: O'Keeffe withdrew from the Boston Marathon.
Late September 2026: MRI confirmed a fully retracted tendon tear.
October 2026: O'Keeffe underwent proximal hamstring repair surgery.
November 1, 2026: Scheduled date of the TCS New York City Marathon.
Health Landscape
The surgical approach for managing high-grade tendon injuries has evolved to prioritize anatomical reattachment to restore long-term athletic performance. This case highlights the rigorous recovery requirements necessary to return to elite marathon competition following a full tendon retraction.
For runners experiencing persistent hamstring pain, early imaging is critical to prevent partial tears from progressing to more severe, fully retracted injuries. Any persistent pain during training should be evaluated by a sports medicine specialist to determine if imaging or physical therapy is necessary.
The takeaway
Severe hamstring injuries require a cautious, graduated approach to healing to ensure the tendon is fully reattached before loading. If you are dealing with chronic leg pain, consult a physical therapist or orthopedist to assess your range of motion and prevent further tissue degradation.
Further reading
For more on managing common athletic injuries, visit our Running section.
Source note: This article includes information reported by EssentiallySports.
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