“Will I be ready in time?”
I get some version of this question from almost every athlete I coach, usually showing up around week 10 or 12 of an 18-week training block.
By that point in your training, the answer is already there.
You’ve run enough goal-pace workouts and enough long runs that the data exists.
You just have to know how to read it.
What follows is the framework I use when an athlete asks me this question.
Why Finishing All Your Workouts Doesn’t Mean You’re Ready
Most runners measure readiness by completion: miles logged, long runs finished, workouts checked off the training plan.
Completion matters.
But whether you’ll hit your goal comes down to something the check-marks don’t capture.
Every workout in a marathon training plan is calibrated to your goal finishing time.
Tempo runs, long runs, goal-pace intervals: they all assume you’re training at an effort level that matches your actual current fitness.
If your goal was off from the start, every session in the plan was targeting the wrong physiological effort for 18 weeks.
Completing a training plan built for a 3:45 marathon doesn’t prepare you to run 3:45 if you started that plan in 4:00 shape.
Completing 18 weeks of training designed for the wrong goal time prepares you for exactly that: the wrong goal time.
Before asking “did I do enough?” the better question is: “was the training targeting the right level of fitness?”
Only the second question tells you whether you’ll hit your goal on race day.
The First Thing I Check: Is the Goal Calibrated to Your Fitness?
The first thing I look at is whether the goal was set based on current fitness, or based on where the athlete hoped to be by race day.
Runners almost always pick goal times based on what they want to run: break 4 hours, qualify for Boston, run a new PR.
The goal rarely starts with a clear read of current fitness.
Every assigned workout pace in a training plan flows directly from that goal time.
If the goal is off by 15 minutes, every session in the plan targets a different physiological effort than your body can actually handle.
The most common version of this I see: an athlete blows up in the back half of a marathon despite training hard and completing nearly every workout.
When I trace back through the training, the goal they built the plan around was 15-20 minutes faster than the fitness they actually had when the block started.
Here’s the check I’d have you run.
Find a threshold or tempo workout from early in your training, ideally weeks 4 or 5, and look at the paces you were hitting.
If those paces line up with what your goal time requires, the goal was calibrated correctly.
If you were consistently struggling to hit the prescribed paces, or running noticeably slower than assigned and still finding it hard, that gap is the answer you’ve been looking for.
A goal set to match your current fitness will always outperform a goal set to match your aspirations, because the training calibrates to it correctly from day one.
We’ve written in detail about how to set a goal time that actually reflects your current fitness if you want the full walkthrough of that process.
The Two Training Signals That Tell Me the Most
Once I’ve confirmed the goal was calibrated correctly, there are 2 specific things I look for in the training data.
Can You Finish Your Goal-Pace Workouts?
The first is whether an athlete has been finishing their goal-pace sessions in full: prescribed distance, prescribed pace, all of it.
These workouts should feel hard.
In my experience, they should feel like they’re bordering on barely doable.
That’s what the right level of effort looks like for a well-calibrated goal-pace workout.
Stopping short of the prescribed distance because the pace is unsustainable is the red flag I watch for.
If goal pace genuinely feels easy in training, that’s worth investigating: either the goal isn’t ambitious enough, or the workout wasn’t executed at the right effort.
Go back through your last 3 or 4 goal-pace sessions.
Did you finish all of them at the prescribed distances and paces?
If yes, and they felt hard but you got through them, that’s the signal you’re looking for.
Finishing every goal-pace workout, even when it borders on barely doable, is the clearest signal that your training is on track.
Are You Getting Better at the Same Workouts?
Fitness shows up most clearly when you look at how repeating workouts compare across the training block.
When you run a similar workout type multiple times across 16-18 weeks, you should see at least one of these improvements as training progresses:
- More total volume at the same pace
- A faster pace at the same volume
- Shorter recovery between intervals at the same distance and pace
Pull up 2 or 3 similar workouts from different points in your training.
A threshold-mile session from week 6 and the same workout from week 12 is a useful comparison.
Week 12 should feel better than week 6, or you should be running it faster, or the recovery between intervals should be shorter.
If the same workout consistently feels harder as training progresses, fitness isn’t building the way the plan assumed.
That pattern won’t fix itself by race day.
If the same workout feels harder in week 14 than it did in week 8, fitness isn’t building the way the plan assumed, and that gap will show up on race day.
What to Do When the Signals Point the Wrong Way
If the assessment points the wrong way, treat it as data and adjust from there.
The question shifts from “will I hit my goal?” to “what time does this training actually have me prepared for?”
Those are different frames, and the second one is more useful for racing well.
The pattern I see most often in runners who miss goals badly: they had signals from training that suggested adjusting, and they set those signals aside when the starting gun went off.
Race day amplifies everything: the fatigue, the heat, the early miles that went out 5 seconds per mile too fast.
What felt manageable in training becomes unavoidable at mile 22.
There are 2 practical options from here:
- Adjust the goal time. Set a new target based on what the training actually supports, typically 10-15 minutes back from the original goal if the signals were consistently concerning.
- Keep the goal, change the early pacing. Run miles 1-13 on feel rather than on goal pace, and let the second half of the race tell you what you actually have.
Adjusting your goal based on what training tells you is using the data to run the best race your current fitness can produce.
