Fresno's Flat Half Hides a Second-Half Trap That Catches 98% of the Field

Three editions of data tell a consistent story about the Two Cities Marathon Half: accessible conditions, a deceptively gentle course, and a second half that quietly dismantles even well-prepared pacing plans. With a field now approaching 1,500 finishers and a median finish hovering around 2:16, this is a race that rewards patience far more than it rewards early confidence.

By the numbers

The field has grown steadily — 1,154 finishers in 2023, 1,418 in 2024, and 1,470 in 2025 — a 27% increase over three years. Women now make up roughly half the field; their share climbed from 574 in 2023 to 739 in 2025. The overall median has remained remarkably stable, ranging from 2:15:31 to 2:16:54 across all three editions, suggesting the growth is drawing runners of similar ability rather than dramatically widening the bell curve. The 75th percentile has barely moved either, sitting between 2:40:56 and 2:41:32 across all three years.

Where the course bites

The elevation profile is genuinely flat — a net descent over the first 10K gives way to a modest climb back in the second half, with the course gaining roughly 28 feet from the 10K mark to the finish. That's not dramatic, but combined with accumulated fatigue, it's enough to matter.

The 2025 fade curve makes the pattern plain:

The field eases 18 seconds per mile from the opening mile to the 10K, then loses another 29 seconds per mile over the back half. The course doesn't bite once — it nibbles continuously, and the nibbling accelerates after the turn.

Pacing reality check

The numbers here are stark. In both 2023 and 2024, 98% of finishers ran positive splits. In 2024, only 22 runners managed a negative split from a field of 1,418; in 2023, just 14 from 1,154. The average second-half slowdown was 16.9% in 2024 and 18% in 2023 — meaning a runner through the halfway mark at, say, 1:03:00 was finishing, on average, around 2:27 to 2:29. Pacing data for 2025 was not provided, but the fade curve tells the same story.

The weather question

All three prior editions ran in mild to cool Central Valley November conditions. The coldest start was 2023's 46°F, which coincided with the steepest average slowdown on record (18%). The 2024 edition started warmer at 71°F and still produced a 16.9% second-half fade. The 2025 race — 64–74°F, clear, 53% humidity — delivered the fastest overall median of the three years at 2:15:31.

The 2026 forecast of 62–72°F with haze and 58% humidity sits between those bands, closer to 2025's conditions than to 2024's warmer start. If the pattern holds, expect a field median in the 2:15–2:17 range.

What it takes

Breaking 1:58:30 has placed a runner in the top quarter in every edition. The top 10% threshold has tightened slightly in 2025 to 1:46:34 after sitting near 1:44–1:45 in the two prior years.

What to watch

The near-total dominance of positive splitting — 98% across two measured editions — raises the question of whether any year's field can meaningfully shift that share. With conditions forecast to be nearly identical to 2025, this is the edition best positioned to test it.

Field size is the other thread to follow. A fourth consecutive year of growth would push the event past 1,500 finishers for the first time in the provided data. The women's field in particular has grown by 165 finishers in two years — a trend worth tracking as the gender balance approaches parity.