Marathon Pace Calculator
Calculate your pace and splits for marathon success
Required Pace
5:41
per kilometer
Half Marathon Time
2:00:00
Speed
10.55 km/h
Split Times
Marathon Facts
The Original Marathon
In 490 BC, Pheidippides ran from Marathon to Athens (~25 miles) to announce victory over the Persians. The modern 26.2 mile distance was set at the 1908 London Olympics.
Boston Marathon
The world's oldest annual marathon, first held in 1897. It requires qualifying times and is considered the most prestigious marathon in the world.
Sub-2-Hour Barrier
Eliud Kipchoge ran 1:59:40 in Vienna 2019, becoming the first human to break the 2-hour barrier, though it wasn't an official record due to pacing assistance.
Average Finish Time
The average marathon finish time worldwide is about 4 hours 21 minutes for men and 4 hours 48 minutes for women.
Hitting The Wall
Around mile 20, runners often 'hit the wall' when glycogen stores deplete. Proper pacing and nutrition can help delay or prevent this.
Carb Loading Strategy
Elite runners consume 8-10g of carbs per kg of body weight in the 2-3 days before a marathon to maximize glycogen storage.
Oldest Finisher
Fauja Singh completed the Toronto Waterfront Marathon at age 100 in 2011, becoming the oldest person to finish a marathon.
Most Marathons
Larry Macon holds the Guinness World Record for most marathons in a year: 239 marathons in 2013, averaging one every 1.5 days.