With thanks

Attributions & Sources

CarryDown is a brand-neutral catalog built on top of data that other people publish first. None of this site would exist without the manufacturers, governing bodies, pattern archivists, retailers, and reviewers below. We credit them all here. Where a source goes quiet, we freeze its data at last-known-good rather than delete it — so the record they helped build stays put.

Oil patterns & lane conditions

Legality & certification

Ball specifications & imagery

Specs, descriptions, and product images come from each manufacturer's own website. All brand names, ball names, and logos are trademarks of their respective owners.

Where to buy

Retailer links and availability are sourced from the merchants below. Some links are affiliate links — see our affiliate disclosure in the footer.

Bowler reviews & commentary

Something missing or miscredited? CarryDown is independent and not affiliated with any manufacturer, the USBC, or the PBA. If you publish bowling data and want a correction or a different attribution, we want to get it right.