canonical product

Callaway Great Big Bertha 23

Single Iron · Ultra Game Improvement

3
live listings · 1 retailers: $88–$106
asking range: $100
fair, all conditions · 16 comps (past listings): ~$106 · 30d
clears at · 12 organic delists (180d) · delisted ≠ sold

buy now or wait?BUY

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

≈ $0/mo depreciation (model)waiting 3 months ≈ $1 cheaper (model)clears ≈ $106 (measured · delisted ≠ sold)

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 · 63 obs

$73–$116
typically sells for: −2%/yr
value trend: 104%
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
Average8 comps · past listings: $88

own one? check what it's worth →

Live listings

cheapest first · 3 live

Callaway Great Big Bertha 23 Single Iron 7 Iron UST Mamiya Helium Nanocore 60i IP Finish Graphite Senior Left Handed 37.0in

AverageSeniorLH2nd Swing

$88

Callaway Great Big Bertha 23 Single Iron 5 Iron Nippon NS Pro 850GH Neo Steel Stiff Right Handed 39.0in

AverageStiff2nd Swing

$88

Callaway Great Big Bertha 23 Single Iron 8 Iron UST Mamiya Helium Nanocore 50i IP Finish Graphite Ladies Right Handed 35.5in

AverageLadies2nd Swing

$106