PaceRight and the Trap of Exact Marathon Pace

Field notes

PaceRight groups Marathon de La Rochelle finishers by their halfway passage and compares those groups with target marathon times. Its 3h30 example shows a 1h44–1h46 split band producing a 14% under-target finish rate and an approximately 3h37 median, with separate edition rates of 10.7% and 17.9%. The page also states that its browser-side calculation sends no data, though the extracted view does not expose the calculator’s input controls.