canonical product
Callaway Big Bertha B21
Iron Set · Ultra Game Improvement
- 20
- live listings · 5 retailers
- $435–$924
- asking range
- $771
- fair, all conditions · 13 comps
- ~$473 · 26d
- clears at · 22 organic delists (180d) · delisted ≠ sold
buy now or wait?BUY
The value curve is flat — waiting buys you almost nothing.
≈ $2/mo depreciation (model)waiting 3 months ≈ $0 cheaper (model)clears ≈ $473 (measured · delisted ≠ sold)
forecast: product evidence · verdict recomputed nightly
The verdict
each line cites its basis- Buy window: the cheapest live copy sits $336 under the all-condition fair bar. — fair $771 · 13 comps
- Sellers ask ~$134 over what actually clears — offers near $473 are market-typical. — 22 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 · 166 obs- $427–$713
- typically sells for
- −3%/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
- Average11 comps
- $771
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 · 12 comps14 live from $303
Callaway Steelhead XR Pro 2017
fair $57/club · 8 comps8 live from $330
Callaway Rogue 2018
fair $76/club · 43 comps48 live from $303
Callaway Rogue X 2018
fair $78/club · 55 comps68 live from $300
TaylorMade M2 2017
fair $62/club · 8 comps10 live from $250
Live listings
cheapest first · 20 liveCallaway Big Bertha B21 Iron Set 8-Pw, Aw, Sw Regular Flex Rch 65 14020027 Good
AverageRegularMike's Golf Outlet
Callaway Big Bertha B21 Iron Set
Above AverageRegularGlobalGolf
Callaway Big Bertha B21 Iron Set 6-PW Callaway RCH Iron 65 Graphite Regular Right Handed STD
AverageRegular2nd Swing
Callaway Big Bertha B21 Iron Set 7-Pw, Aw Stiff Flex Project X Lz 14020047 Good
AverageStiffMike's Golf Outlet
Callaway Big Bertha B21 Iron Set 5-PW AW UST Mamiya Recoil ESX 460 F2 Graphite Senior Right Handed -3/4"
Below AverageSenior2nd Swing
Callaway Big Bertha B21 Iron Set
AverageSeniorGolf Avenue
Callaway Big Bertha B21 Iron Set 5-PW Callaway RCH 65i Graphite Regular Right Handed STD
AverageRegular2nd Swing
Callaway Big Bertha B21 Iron Set 6-PW AW Callaway RCH 65i Graphite Senior Right Handed STD
AverageSenior2nd Swing
Callaway Big Bertha B21 Iron Set 6-PW AW Callaway RCH 65i Graphite Regular Right Handed STD
AverageRegular2nd Swing
Callaway Big Bertha B21 Iron Set
AverageRegularGolf Avenue
Callaway Big Bertha B21 Iron Set
Above AverageRegularGolf Avenue
Callaway Big Bertha B21 Iron Set 4-PW AW FST KBS MAX CT80 Steel Regular Right Handed +1/2"
AverageRegular2nd Swing
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 4-PW AW FST KBS MAX CT80 Steel Stiff Right Handed +1/2"
AverageStiff2nd Swing
Callaway Big Bertha B21 Iron Set 5-PW AW Callaway RCH 65i Graphite Senior Right Handed STD
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 4-PW AW Callaway RCH 65i Graphite Regular Left Handed +1/4"
AverageRegularLH2nd Swing