Running News Daily

American marathoner Susanna Sullivan continues to prove that world-class athleticism and everyday life can coexist. A sixth-grade math and science teacher from McLean, Virginia, Sullivan has quietly become one of the top American women in marathon history — balancing the classroom with 120-mile training weeks and remarkable consistency on the roads.

From Humble Beginnings to World Class

Born May 13, 1990, in West Palm Beach, Florida, and raised in Virginia, Sullivan’s early success came at George Mason High School, where she earned multiple state titles in cross-country and track. After competing at the University of Notre Dame, she battled injuries and fatigue but never lost her love for the sport.

Her marathon debut came in 2015 at Grandma’s Marathon in Minnesota, where she clocked 2:35:37 for 9th place. Over the next decade, she quietly built momentum, cutting time from race to race. The breakthrough arrived in 2024 at the Chicago Marathon, where she finished 7th overall — and first American — in 2:21:56, a personal best that placed her among the top ten fastest U.S. women of all time.

Fourth at the 2025 World Championships in Tokyo

On September 14, 2025, Sullivan delivered one of her finest performances at the World Athletics Championships Marathon in Tokyo, finishing fourth in 2:28:17.

Under sweltering heat and high humidity, Sullivan courageously led much of the race, setting the pace through 25 kilometers before the eventual medalists pulled away. Her performance — the top American finish — underscored her strength, tactical intelligence, and resilience on one of the sport’s biggest stages.

It also marked a full-circle comeback. Two years earlier, at the 2023 World Championships, Sullivan fractured her kneecap mid-race and limped home in 58th place. Her return to the top five in Tokyo symbolized perseverance and renewed confidence.

The Balance of Two Worlds

While most professional runners build their lives around training, Sullivan still starts her mornings in the classroom. She teaches sixth-grade advanced math and science, grading papers and designing lessons between workouts.

“Running gives me perspective,” she has said in interviews. “It keeps me grounded. Teaching reminds me there’s more to life than splits and finish times.”

Her ability to balance two demanding worlds has made her an inspiration for runners who juggle careers, families, and athletic dreams.

On to New York

Next up, Sullivan is set to compete in the 2025 TCS New York City Marathon on Sunday, November 2. She enters as one of the leading Americans to watch in a stacked international field that includes Olympians and major-marathon champions.

After her stellar run in Tokyo, many eyes will be on how she handles the challenging hills and bridges of New York — a course that rewards experience and toughness rather than speed alone. Few embody those traits better than Sullivan.

Lessons from Her Journey

• Patience and perseverance — her steady rise from 2:35 to 2:21 shows the value of long-term commitment.

• Balance — proof that excellence isn’t limited to full-time athletes.

• Resilience — recovering from injuries and setbacks only to climb higher.

• Leadership — both in the classroom and in leading a world championship field  

Career Highlights

• Marathon PR: 2:21:56 – Chicago (2024)

• World Championships Tokyo (2025): 4th Place, 2:28:17

• London Marathon (2023): 10th Place, 2:24:27 (top American)

• Cherry Blossom 10-Mile (2022): Champion, 52:32

• Half Marathon PR: 1:08:59 – January 2025

A Runner to Watch

Susanna Sullivan’s story reminds us that greatness doesn’t always come from perfect conditions or full-time focus. Sometimes it comes from a quiet classroom in Virginia, where a teacher grades homework — and then goes out to train like one of the best marathoners in the world.

Her journey is far from over, and as she lines up in New York, she represents not just American distance running but every runner chasing balance, progress, and purpose — one mile at a time.