Race Calendar

Upcoming marathons, half-marathons, and major running events worldwide.

Date Race Type
22 Nov
2026
Great Ethiopian Run
Addis Ababa, Ethiopia
10K
22 Nov
2026
TIAA Philadelphia Marathon
Philadelphia, United States
Marathon
29 Nov
2026
Estra Firenze Marathon
Florence, Italy
Marathon
06 Dec
2026
BYD Singapore International Marathon presented by adidas
Singapore, Singapore
Marathon
06 Dec
2026
Maratón Valencia Trinidad Alfonso Zurich
Valencia, Spain
Marathon
06 Dec
2026
Shanghai Marathon
Shanghai, China
Marathon
06 Dec
2026
Volta Internacional da Pampulha
Belo Horizonte, Brazil
Other
13 Dec
2026
JAL Honolulu Marathon
Honolulu, United States
Marathon
20 Dec
2026
Taipei Marathon
Taipei, Taiwan
Marathon
31 Dec
2026
Corrida Internacional de São Silvestre
São Paulo, Brazil
Other
17 Jan
2027
Chevron Houston Marathon
Houston, United States
Marathon
17 Jan
2027
Dubai Marathon
Dubai, United Arab Emirates
Marathon
17 Jan
2027
Standard Chartered Hong Kong Marathon
Hong Kong, Hong Kong
Marathon
17 Jan
2027
Tata Mumbai Marathon
Mumbai, India
Marathon
31 Jan
2027
Life Time Miami Marathon
Miami, United States
Marathon
14 Feb
2027
Hyundai Mitja Marató Barcelona by Brooks
Barcelona, Spain
Half Marathon
28 Feb
2027
Osaka Marathon
Osaka, Japan
Marathon
07 Mar
2027
ASICS Los Angeles Marathon
Los Angeles, United States
Marathon
07 Mar
2027
EDP Lisbon Half Marathon
Lisbon, Portugal
Half Marathon
07 Mar
2027
HOKA Semi Marathon de Paris
Paris, France
Half Marathon

How to Plan Your Running Season

Having a specific race on the calendar transforms vague intentions — "I want to run a marathon someday" — into concrete, schedulable actions. A well-chosen goal race gives training a purpose and creates a natural checkpoint for measuring fitness progress. The calendar above lists upcoming marathons, half marathons, and major road races worldwide. Filter by continent and time window to narrow your options.

Required lead time depends on target distance and current base fitness. As a general guideline — 5K: 8–12 weeks; 10K: 10–16 weeks; half marathon: 12–20 weeks; full marathon: 16–24 weeks from a solid aerobic base. These windows assume consistent running before the plan starts. Add 4–6 weeks if returning from injury or a long break before beginning structured work.

Most experienced runners structure their season around one or two "A races" — events with a full taper where they target a personal best. Supporting those are "B races" (light taper, fitness test) and "C races" (training runs in a race environment). When selecting your A race, prioritize flat courses, historically good weather for that month, and event organization quality. Most coaches recommend 2–4 goal races per year to allow adequate recovery and continued fitness development between peaks.

How does this work?

How far in advance should I register for a major marathon?

World Marathon Majors (Boston, London, Tokyo, Berlin, Chicago, New York) require registration 6–12 months in advance and most use ballots or qualifying times. Smaller regional marathons typically open 3–6 months out. Booking accommodation early is often more critical than registration timing for popular destination races.

How many races per year is too many?

For marathons: most runners do best with 1–2 per year, spaced at least 16–20 weeks apart. Half marathons: 3–4 per year is sustainable. 5K/10K: up to every 4–6 weeks for experienced runners. Racing too frequently without recovery prevents the fitness adaptations that lead to improvement.

What is the difference between an A race, B race and C race?

An A race is your primary goal event — full taper, fully rested, targeting a PB or specific time. A B race gets a partial taper and serves as a fitness test or confidence builder. A C race is run without any taper as a hard training effort in a race environment, not for time goals.