Sub-1:15 Half Marathon — Training Paces and Fitness Profile
Sub-1:15 half marathon is elite-tier endurance running. At most road races this places in the top handful of finishers. This requires a very high VO2max, exceptional threshold stamina, and the fitness of a serious competitive runner.
Quick answer: To break Sub-1:15:00 in the Half Marathon (RPI 62.9), your training paces are: easy 7:11/mi, threshold 5:50/mi, interval 5:09/mi. Equivalent fitness: Marathon 2:36:55, 10K 33:58.
Training paces for Sub-1:15:00 Half Marathon
RPI 62.9 · Goal: 1:14:59 · 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 62.9 — assuming comparable training for each distance.
Marathon
2:36:55
5:59/mi
10K
33:58
5:28/mi
5K
16:22
5:16/mi
Training approach for Sub-1:15:00 Half Marathon
Sub-1:15 half marathon requires sustaining near-threshold pace for 74–75 minutes. This demands both a high aerobic ceiling and the specific metabolic stamina to operate near it for an extended period. High weekly volume (65–85+ miles), two quality sessions per week (one threshold, one interval), and long runs of 15–18 miles are typical for runners at this level.
Calculate your current training paces
The table above shows paces for Sub-1:15:00 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 does a sub-1:15 half marathon require?
For sub-1:15:00 (1:14:59): Easy 7:11/mi, Marathon 6:11/mi, Threshold 5:50/mi, Interval 5:09/mi. RPI 62.9. Threshold work at 5:50/mi for 25–40 minutes is the primary race-specific quality session.
What marathon does sub-1:15 half fitness predict?
Sub-1:15 half marathon fitness (RPI 62.9) projects to approximately 2:36:55 marathon potential — elite-level marathon territory. Converting this to a marathon requires full marathon-specific build: 20-mile long runs, sustained marathon-pace work, and time.
What 5K does sub-1:15 half marathon fitness correspond to?
Sub-1:15 half fitness (RPI 62.9) is equivalent to approximately 16:22 5K fitness. This cross-distance benchmark shows the full scope of elite-level endurance fitness.
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).