canonical product
Callaway Big Bertha B21
Iron Set · Ultra Game Improvement
- 17
- live listings · 4 retailers
- $385–$885
- asking range
- $674
- fair, all conditions · 11 comps
- ~$468 · 7d
- clears at · 14 organic delists (180d) · delisted ≠ sold
buy now or wait?BUY
The value curve is flat — waiting buys you almost nothing.
≈ $1/mo depreciation (model)waiting 3 months ≈ $9 cheaper (model)clears ≈ $468 (measured · delisted ≠ sold)
copies that clear organically do so quickly (measured) — good examples don't linger.
forecast: product evidence · verdict recomputed nightly
The verdict
each line cites its basis- Buy window: the cheapest live copy sits $289 under the all-condition fair bar. — fair $674 · 11 comps
- Sellers ask ~$159 over what actually clears — offers near $468 are market-typical. — 14 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 · 130 obs- $439–$727
- typically sells for
- −2%/yr
- value trend
- 90%
- 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
- Average8 comps
- $674
Same band, for less
measured compsHeads 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 2019
fair $61/club · 13 comps15 live from $303
Callaway Rogue X 2018
fair $72/club · 40 comps52 live from $341
Callaway Rogue 2018
fair $76/club · 31 comps33 live from $285
TaylorMade M2 2017
fair $62/club · 5 comps6 live from $373
Callaway Rogue Pro 2018
fair $72/club · 10 comps11 live from $335
Live listings
cheapest first · 17 liveCallaway Big Bertha B21 Iron Set 7-PW AW Callaway RCH 65i Graphite Regular Right Handed STD
Below AverageRegular2nd Swing
Callaway Big Bertha B21 Iron Set 6-PW AW Accra iS6 Graphite Stiff Right Handed -1/2"
AverageStiff2nd Swing
Callaway Big Bertha B21 Iron Set
Above AverageRegularGlobalGolf
Callaway Big Bertha B21 Iron Set
AverageRegularGolf Avenue
Callaway Big Bertha B21 Iron Set
AverageSeniorGolf Avenue
Callaway Big Bertha B21 Iron Set 7-PW AW Callaway RCH Iron 45 Graphite Ladies Right Handed +1/4"
AverageLadies2nd Swing
Callaway Big Bertha B21 Iron Set
AverageSeniorGolf Avenue
Callaway Big Bertha B21 Iron Set
AverageRegularGolf Avenue
Callaway Big Bertha B21 Iron Set
Above AverageRegularGolf Avenue
Callaway Big Bertha B21 Iron Set 5-PW AW UST Mamiya Recoil ZT9 F3 Graphite Regular Left Handed +1/4"
AverageRegularLH2nd Swing
Callaway Big Bertha B21 Iron Set 4-PW Callaway RCH 65i Graphite Senior Right Handed STD
AverageSenior2nd Swing
Callaway Big Bertha B21 Iron Set 5-PW AW FST KBS MAX CT80 Steel Regular Right Handed +3/4"
AverageRegular2nd Swing
Callaway Big Bertha B21 Iron Set 6-PW AW SW Callaway RCH 65i Graphite Senior Right Handed +1/2"
AverageSenior2nd Swing
Pre-Owned Callaway Golf LH Big Bertha B21 Irons (7 Iron Set) Left Handed
LHRock Bottom Golf
Callaway Big Bertha B21 Iron Set 4-PW AW Callaway RCH 65i Graphite Regular Left Handed +1/4"
Above AverageRegularLH2nd Swing
Callaway Big Bertha B21 Iron Set 4-PW AW SW Callaway RCH 65i Graphite Regular Right Handed STD
AverageRegular2nd Swing
Callaway Big Bertha B21 Iron Set 5-PW AW SW Callaway RCH 65i Graphite Regular Right Handed STD
AverageRegular2nd Swing