## How do you calculate predicted marathon time?

The formula is T2 = T1 x (D2/D1) 1.06 where T1 is the given time, D1 is the given distance, D2 is the distance to predict a time for, and T2 is the calculated time for D2.

## How accurate is Garmin race predictor?

Garmin’s race predictor usually overestimates your race times and underestimates your heart rate.

**How do I determine my race pace?**

An easy way to find your baseline pace for long distance runs is by entering a 5K race. To be as accurate as possible, try to choose a race with an even surface and with similar conditions to what you usually train in. Be sure to track the pace time of your last mile. This will be your baseline running pace.

**What should my marathon target time be?**

SUB-4:00 (9:09 per mile) The average was around 1:56. Runners aiming for this time usually have PB times of around 1:45-1:50 for half-marathon and 47-50:00 for 10km. On even pace, runners need to run 45:48 for 5 miles, 91:36 for 10 miles and 2:17:24 for 15 miles, 3:03:12 for 20 miles and 3:49:00 for 25 miles.

### What pace is a 4 hour marathon?

approximately 9:00 per mile

A 4:00 hour marathon is approximately 9:00 per mile. To break 4:00, you should eventually be capable of a sub-1:50 half-marathon (8:20 per mile) and sub-50:00 10K (8:00 per mile). Right now, you should be running at least 20 miles per week, and be able to run for an hour non-stop.

### Why is Garmin race predictor so inaccurate?

Garmin’s Race Predictor systematically predicts way too fast times. The explanation for this is probably an error in the algorithm that calculates the speed/time.

**How close is the Garmin race predictor?**

First-beat state their prediction is usually within 3.5 ml/kg/min, which is relatively accurate. A recent study looked at the accuracy of watch VO2 prediction vs. actual VO2 max in 28 random individuals. They found that for low fitness individuals, the watch prediction was mostly accurate.

**What is average pace for marathon?**

Average pace Most marathon runners finish a mile every 10 minutes. The average mile time for men is between 9 and 11 minutes. Women average a mile every 10 to 12 minutes. Slow down your pace on most training days.

#### Is a 4hr marathon good?

So, for a man, anything under 4 hours could be considered a good marathon time, putting you in the top 43% of runners. For women, a time under 4 hours and 30 minutes would similarly be very good.

#### What percentage of runners run a sub 3 hour marathon?

The Marastats.com website estimates that only four percent of all marathon runners of any age manage to break 3 hours for the classic distance.

**What is the Garmin race predictor based on?**

VO2 max. estimate

Your device uses the VO2 max. estimate (About VO2 Max. Estimates) and your training history to provide a target race time. The device analyzes several weeks of your training data to refine the race time estimates.

**How fast do ultra runners run?**

Ultra runners have never been slower across distance, gender and age group. The average pace in 1996 was 11:35 min/mile, currently, it is 13:16 min/mile. The average runner has added 1:41 min/mile to their average pace, which is a slowdown of 15% since 1996.

## What is a good marathon pace per km?

What is the average pace for marathon runners? According to the RunRepeat data, the average pace for a male marathon runner is 6.43 minutes per kilometre, which works out as 10.34 minutes per mile. The average pace for a female runner over 26.2 miles is 7.26 minutes per kilometre, or an 11.55 minute mile.

## What percentage of marathon runners break 4 hours?

The average marathon pace is about 9 minutes, 57 seconds per mile (or 6 minutes, 11 seconds per kilometer)….Marathon Finish Time Statistics.

Time | Men | Women |
---|---|---|

Less than 3 hours, 5 minutes | 18% | 5% |

Less than 4 hours | 43% | 21% |

Less than 4 hours, 5 minutes | 64% | 43% |

Less than 5 hours | 81% | 65% |

https://www.youtube.com/watch?v=8SMxPouRqr4