canonical product

Callaway Great Big Bertha 23

Single Iron · Ultra Game Improvement

1
live listings · 1 retailers: $127–$127
asking range: $110
fair, all conditions · 8 comps (past listings)

buy now or wait?BUY

The value curve is flat — waiting buys you almost nothing.

days-on-market is measured, but organic clears are a small slice of this product's churn — weigh the velocity accordingly.

forecast: product evidence · verdict recomputed nightly

What it has been selling for

monthly medians since 2026-02

monthly median ask · open points are sparse months (<8 observation days) drawn as facts, never interpolated — the line knits itself in as nightly snapshots accumulate

Value over time

value model, curve fit on this product · 20 obs

$83–$136
typically sells for: ≈ holding value
value trend: 117%
held over 3 yrs

median model value by product age, 80% band — about 1 in 5 sales lands outside it · rebuilt nightly

Fair price by condition

Ungraded7 comps · past listings: $110

own one? check what it's worth →

Same band, for less

measured comps

Heads rated to the same Ultra Game Improvement playability band, priced materially lower at fair — each fair on 5+ comps, each buyable today. Ranked by what you save, weighted by how well-measured the saving is. Nothing here is paid placement; there is none on this site.

Callaway Big Bertha OS 2023

fair $77 · 8 comps11 live from $56

$33 less at fair

Live listings

cheapest first · 1 live

Callaway Great Big Bertha 23 Single Iron 8 Iron UST Mamiya Helium Nanocore 60i IP Finish Graphite Senior Right Handed 36.5in

AverageSenior2nd Swing

$127