canonical product
Callaway Big Bertha B21 2021
Driver
- 17
- live listings · 3 retailers
- $192–$490
- asking range
- $240
- fair, all conditions · 13 comps
- ~$205 · 22d
- clears at · 24 organic delists (180d) · delisted ≠ sold
buy now or wait?BUY
The value curve is flat — waiting buys you almost nothing.
≈ $0/mo depreciation (model)clears ≈ $205 (measured · delisted ≠ sold)
forecast: product evidence · verdict recomputed nightly
The verdict
each line cites its basis- Buy window: the cheapest live copy sits $48 under the all-condition fair bar. — fair $240 · 13 comps
- Sellers ask ~$35 over what actually clears — offers near $205 are market-typical. — 24 organic delists, 180d · delisted ≠ sold
What it has been selling for
monthly medians since 2026-01Value over time
value model, curve fit on this product · 145 obs- $157–$270
- typically sells for
- −2%/yr
- value trend
- 94%
- 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
- Average5 comps
- $240
- Below Average5 comps
- $221
Same band, for less
measured compsThe same club type, 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.
Mizuno ST Z 230 2022
fair $165 · 166 comps189 live from $114
PXG 0811 GEN4 X 2021
fair $154 · 50 comps55 live from $85
Mizuno ST Z 2021
fair $144 · 31 comps32 live from $112
PXG 0211 2021
fair $146 · 32 comps35 live from $104
PXG 0811 XF GEN4 2021
fair $161 · 50 comps62 live from $107
Live listings
cheapest first · 17 liveCallaway Big Bertha B21 Driver 9° Callaway RCH Wood 55 Graphite Regular Right Handed 45.5in
Below AverageRegular2nd Swing
Callaway Big Bertha B21 Driver 10.5° Project X Cypher 40 Graphite Senior Right Handed 44.5in
Below AverageSenior2nd Swing
Callaway Big Bertha B21 Driver 9° Callaway RCH Wood 65 Graphite Stiff Right Handed 45.5in
Below AverageStiff2nd Swing
Callaway Big Bertha B21 Driver 9° Aldila NVS Orange 65 Graphite Regular Right Handed 45.25in
Below AverageRegular2nd Swing
Callaway Big Bertha B21 Driver 12.5° Aldila Synergy Blue 50 Graphite Regular Right Handed 45.5in
Below AverageRegular2nd Swing
Callaway Big Bertha B21 Driver 10.5° Fujikura Motore X F3 6 Graphite Stiff Right Handed 46.5in
AverageStiff2nd Swing
Callaway Big Bertha B21 Driver 10.5° Callaway RCH Wood 65 Graphite Stiff Right Handed 45.5in
AverageStiff2nd Swing
Callaway Big Bertha B21 Driver 9° Callaway RCH Wood 45 Graphite Senior Right Handed 45.5in
AverageSenior2nd Swing
Callaway Big Bertha B21 Driver 10.5° Mitsubishi Tensei AV-XLINK Blue 55 Graphite Stiff Right Handed 45.5in
AverageStiff2nd Swing
Callaway Big Bertha B21 Driver 10.5° Callaway RCH Wood 45 Graphite Senior Right Handed 45.75in
AverageSenior2nd Swing
Callaway Big Bertha B21 Driver
Above AverageStiffGolf Avenue
Callaway Big Bertha B21 Driver 9° Callaway RCH Wood 55 Graphite Stiff Right Handed 45.75in
AverageStiff2nd Swing
Callaway Big Bertha B21 Driver 9° Callaway RCH Wood 55 Graphite Stiff Left Handed 45.75in
AverageStiffLH2nd Swing
Callaway Big Bertha B21 Driver 12.5° Callaway RCH Wood 55 Graphite Senior Right Handed 45.0in
AverageSenior2nd Swing
Pre-Owned Callaway Golf Big Bertha B21 Driver
LHRock Bottom Golf
Callaway Big Bertha B21 Driver 10.5° Graphite Design Tour AD IZ-5 Graphite Stiff Right Handed 45.25in
Below AverageStiff2nd Swing
Callaway Big Bertha B21 Driver 9° Fujikura Ventus TR Red Velocore 6 Graphite Regular Right Handed 44.75in
Above AverageRegular2nd Swing