Sub-1:35 Half Marathon — Training Paces and Fitness Profile
Sub-1:35 half marathon places you solidly in the competitive recreational tier — top quarter at most road races. Runners here have real aerobic capacity and have spent meaningful time training with structure.
Quick answer: To break Sub-1:35:00 in the Half Marathon (RPI 47.9), your training paces are: easy 8:42/mi, threshold 6:59/mi, interval 6:06/mi. Equivalent fitness: Marathon 3:17:41, 10K 42:52.
Training paces for Sub-1:35:00 Half Marathon
RPI 47.9 · Goal: 1:34:59 · All paces in min/mile
Calculated from Daniels/Gilbert oxygen cost equations. Easy pace means "this pace or slower."
Equivalent race fitness
These are the predicted equivalent times at other distances for a runner with RPI 47.9 — assuming comparable training for each distance.
Marathon
3:17:41
7:32/mi
10K
42:52
6:54/mi
5K
20:41
6:39/mi
Training approach for Sub-1:35:00 Half Marathon
For sub-1:35 half marathon, threshold training and long runs are the primary tools. Threshold tempo runs (20–30 minutes) build the sustained-effort capacity the half marathon demands. Long runs at easy pace (12–15 miles) develop the endurance base. Two quality sessions per week with 35–50 miles of total volume is the effective structure.
Calculate your current training paces
The table above shows paces for Sub-1:35:00 Half Marathon fitness. Enter your current race time to see where you are now and how far from the goal you sit.
Training Pace Calculator
These paces are based on your race time — not your body
The Daniels/Gilbert formula predicts training zones from a single race result. StrideIQ goes further: it tracks how your body specifically responds to threshold and interval work — which sessions produce your biggest gains, how quickly you recover, and when your fitness is peaking. Population formulas start the conversation. Your individual response data finishes it.
Common questions
What training paces are needed for sub-1:35 in the half marathon?
For sub-1:35:00 (1:34:59): Easy 8:42/mi, Threshold 6:59/mi, Interval 6:06/mi. RPI 47.9. Marathon pace (7:25/mi) is useful in long-run finishes — half marathon race pace sits between marathon and threshold pace physiologically.
What marathon does sub-1:35 half fitness predict?
Sub-1:35 half marathon (RPI 47.9) projects to approximately 3:17:41 marathon potential. If you are building toward a marathon, your half fitness is a reliable aerobic benchmark — the marathon projection requires full marathon preparation to realize.
What 10K corresponds to sub-1:35 half fitness?
Sub-1:35 half fitness (RPI 47.9) is equivalent to approximately 42:52 10K performance. This is the most reliable cross-distance pair for prediction.
Other goal pace guides
Paces calculated using the Daniels/Gilbert oxygen cost equations (1979). All values derived from the same formula used by the StrideIQ training pace calculator. Goal times use the target-minus-one-second convention (e.g., sub-20 = 19:59 input).