Observed arrival · 2026-10-30
Margin Swim puts a range on swim-meet projections
A projection tool for college swim coaches that estimates swimmer times and scores dual-meet lineups and conference championships.
○Open
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- College swim coaches planning lineups and championship strategy
- Worth noticing
- The site says its model covers 1.1 million swims across 13 conferences, using published meet results dating back to 2010.
Field notes
The model uses published college meet results spanning 13 conferences and dating to 2010; the page says there are 1.1 million swims in its data. It describes dual-meet projections as using only swims earlier than the meet, with lineup rules including rest intervals and no swimmer racing three events in a row. The site reports a pilot result of 88% correctly identified winners across 51 duals from 2023–26; these figures are site claims, not independently verified here.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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