The record fell not through a blistering opening lap but through unusual patience — the runner passed halfway noticeably slower than the record pace before running the second half faster than anyone in the field.
Coaches describe the approach as a deliberate rejection of the "go out fast and hang on" style that has dominated distance racing for years, betting instead that a controlled first half would leave more in reserve for the finish.
"Everyone was watching the clock at halfway and panicking. That was exactly the plan." — National distance coach
Sports scientists say negative-split racing is easier to plan than to execute, since it requires runners to ignore a stadium clock that says they're "behind" for most of the race — a psychological hurdle as much as a physical one.
Whether more athletes adopt the approach may depend on how the next few championship races unfold, but several rival training groups say they're already studying the splits closely.
