Race guides / Flat and fast
Fast half marathons in the US.
American half marathons on flat courses, ranked by total climb. Many are run alongside a city marathon on the same weekend, so they share its closed roads and its organization. 18 flat half marathons in United States, racing from 6 Dec 2026 to 3 Oct 2027. The flattest, Project 13.1, climbs 5 m in total.
- 20Mar 27Project 13.1🇺🇸 Congres, NY, United States · HalfOpenHalf · Flat · 5 m↑ · 3°C (38°F) · $133.50$133.50Open
- 14Feb 27Fort Lauderdale Marathon🇺🇸 Fort Lauderdale, FL, United States · Half + marathonOpenHalf + marathon · Flat · 10 m↑ · 18°C (64°F)—Open
- 07Feb 27Donna The National Marathon🇺🇸 Jacksonville Beach, FL, United States · Half + marathonCharity and tour placesHalf + marathon · Flat · 15 m↑ · 11°C (53°F)—Partly open
- 19Jun 27Grandma's Marathon🇺🇸 Duluth, United States · Half + marathonCharity and tour placesHalf + marathon · Flat · 15 m↑ · 14°C (57°F) · $110$110Partly open
- 06Mar 27Myrtle Beach Marathon🇺🇸 Myrtle Beach, SC, United States · Half + marathonNot open yetHalf + marathon · Flat · 19 m↑ · 15°C (59°F)—Not open yet
- 18Apr 27Jersey City Marathon🇺🇸 Jersey City, NJ, United States · Half + marathonOpenHalf + marathon · Flat · 23 m↑ · 11°C (51°F) · $150$150Open
- 02May 27Greater Binghamton Bridge Run🇺🇸 Binghamton, United States · HalfNot open yetHalf · Flat · 30 m↑ · 12°C (53°F)—Not open yet
- 31Jan 27Miami Marathon🇺🇸 Miami, FL, United States · Half + marathonCharity and tour placesHalf + marathon · Flat · 35 m↑ · 17°C (63°F) · $190$190Partly open
- 03Oct 27Long Beach Marathon🇺🇸 Long Beach, CA, United States · Half + marathonOpenHalf + marathon · Flat · 35 m↑ · 21°C (70°F)—Open
- 27Feb 27The Woodlands Marathon🇺🇸 The Woodlands, United States of America · Half + marathonOpenHalf + marathon · Flat · 36 m↑ · 16°C (61°F)—Open
- 26Sep 27Chicago Half Marathon🇺🇸 Chicago, United States · Half1 on RadarNot open yetHalf · Flat · 40 m↑ · 16°C (61°F)—Not open yet
- 17Jan 27Chevron Houston Marathon🇺🇸 Houston, United States · Half + marathonCharity and tour placesHalf + marathon · Flat · 45 m↑ · 10°C (50°F) · $40$40Partly open
- 06Dec 26San Antonio Marathon🇺🇸 San Antonio, TX, United States · Half + marathonNot open yetHalf + marathon · Flat · 54 m↑ · 14°C (57°F)—Not open yet
- 08May 27Indianapolis IU Health 500 Festival Mini-Marathon🇺🇸 Indianapolis, United States · HalfNot open yetHalf · Flat · 60 m↑ · 15°C (59°F) · $105$105Not open yet
- 07Feb 27San Francisco Half Marathon🇺🇸 San Francisco, United States · HalfNot open yetHalf · Flat · 65 m↑ · 10°C (49°F)—Not open yet
- 27Feb 27SoCal Marathon🇺🇸 Huntington Beach, CA, United States · Half + marathonOpenHalf + marathon · Flat · 80 m↑ · 14°C (57°F) · $91.10$91.10Open
- 07Feb 27Surf City Marathon🇺🇸 Huntington Beach, CA, United States · Half + marathonOpenHalf + marathon · Flat · 113 m↑ · 13°C (55°F)—Open
- 24Apr 27Eugene Marathon🇺🇸 Eugene, OR, United States · Half + marathonBallot opens 23 AprHalf + marathon · Flat · 120 m↑ · 9°C (48°F)—Not open yet