Getting In
10 toolsThe math of getting a bib: marathon ballot odds, major qualifying standards and the buffer you need for Boston.
Ballot SimulatorSimulate your marathon ballot odds for every major, from real entry data.Getting In
Qualification CheckerCheck if your marathon time qualifies you for any of the seven majors.Getting In
BQ Buffer CalculatorThe buffer you need under your Boston qualifying time to actually get in.Getting In
Boston Cutoff TrackerScore your BQ buffer against every real Boston cutoff since 2012, straight from B.A.A. registration numbers.Getting In
BQ Times by AgeYour age group's Boston qualifying time plus the standard at every other Major, with the pace it takes.Getting In
London GFA CheckerYour age, division and marathon time against London's Good For Age standard, with margin, the ballot window and the fastest-first cap.Getting In
Ballot Calendar CountdownLive countdowns to every open, close, draw and race day across all 8 Majors, with one click .ics downloads.Getting In
Charity Place Cost CalculatorPick a race and a real charity partner, see its published fundraising minimum and registration fee, then get the weekly pace needed to hit that minimum by race day.Getting In
Ballot Strategy CalculatorTick the marathon ballots you plan to enter for your combined chance of at least one acceptance, fees at risk, and date clashes.Getting In
NYC Qualifying CheckerYour age, division and marathon time against the NYC Marathon time qualifier standard, with margin, entry status and the lottery fallback odds.Getting In
Training
8 toolsRace time prediction for the build: what your recent results say about your marathon.
Race Time PredictorPredict your marathon time from a recent 5K, 10K or half marathon result.Training
Training Pace CalculatorTurn one race result into your five Daniels training paces: easy, marathon, threshold, interval, repetition.Training
Heart Rate Zone CalculatorKarvonen heart rate reserve zones from your age or known max HR, plus resting HR: five training zones in bpm.Training
Training Start Date CalculatorPick a Major and a plan length, get your training start date and whether the ballot result lands before day one.Training
Marathon Taper CalculatorTurn your peak week into a week by week taper, with volume, long run and race week laid out.Training
Run Walk CalculatorBlend a run interval and a walk interval into one real pace, and see the finish time your run-walk strategy actually produces.Training
Mileage Ramp CalculatorBuild a week by week mileage plan from where you are now to your peak week, with cutback weeks scheduled in.Training
Yasso 800s CalculatorConvert your Yasso 800 repeat time into a marathon prediction, or a goal marathon into the 800 time you need to hit.Training
Pace & Time
8 toolsRunning pace math: min/km and min/mile, splits and finish times for any distance.
Pace CalculatorSolve running pace, time or distance from the other two, with full splits.Pace & Time
Pace ConverterConvert running pace between min/km, min/mile, mph and kph, plus finish times.Pace & Time
Treadmill Pace CalculatorConvert treadmill speed and incline to the equivalent flat outdoor pace, both directions, mph and km/h.Pace & Time
Age Graded CalculatorScore any road result on the 2025 WMA factors: age grade percentage, open-equivalent time and class.Pace & Time
Goal Pace CalculatorPick a goal marathon time, sub-3 to sub-5, and get the required pace and splits.Pace & Time
Grade Adjusted PaceConvert your pace on any hill grade to a flat-equivalent effort, or the reverse, using the Minetti gradient-cost formula.Pace & Time
Pace Band GeneratorPrintable pace band with elevation adjusted splits for the real course of 7 Marathon Majors.Pace & Time
Negative Split CalculatorTurn a goal finish time into first-half and second-half paces, with every split laid out for an even or negative split race.Pace & Time
Race Day
5 toolsRace morning math: fueling, corrals, weather and the splits plan for the day.
Carb Loading CalculatorYour daily carb-gram target for the 48 to 72 hours before a marathon, from body weight, plus rough food examples.Race Day
Gel CalculatorHow many gels you need for a marathon, and when to take them, from your weight, finish time and carbs per gel.Race Day
Heat Pace CalculatorAdjust your goal marathon pace for race-day heat, with every Major's real historical weather preloaded.Race Day
Marathon Kit AdvisorConditions in, layers out, with the real race-day weather from every Abbott Major loaded as a one-click starting point.Race Day
Sweat Rate CalculatorMeasure your real sweat rate from a weigh-in either side of a run, then turn it into an hourly drinking plan.Race Day
The Majors
4 toolsThe eight majors side by side: costs, countdowns and course comparisons.
Course Time ConverterConvert a finish time from one Marathon Major to an elevation-adjusted equivalent on another, plus a difficulty ranking of all eight courses.The Majors
Majors Cost CalculatorTick the majors you want to run, entry route or charity route, and add up what's cleanly parseable from each race's own published fee.The Majors
Six Star TrackerCheck off the Majors you've finished and see ballot odds, entry windows and the realistic path to the rest, all 8 including Cape Town.The Majors
Which Major QuizAnswer three questions and get the Abbott Major that fits, ranked on real ballot odds, course elevation and race-day weather.The Majors
Fun & Share
3 toolsNovelty running math: your numbers against the pros and the outliers.
Steps in a MarathonWork out how many steps your marathon actually takes from your finish time and cadence, plus your step length.Fun & Share
Calorie CalculatorCalories burned running a marathon by weight, distance and finish time, converted into pizza slices, beers, bananas and gels.Fun & Share
You vs World RecordSee exactly where you would be on the course when the marathon world record holder crosses the finish line.Fun & Share