28.5 basketball indoor
Worth a lookShows a sweet-spot price point ($30.15 avg), but soft demand (-19.9% this quarter) keeps it on the watch list.
Avg price
Incredible$30.15avg listing price — sweet spot $15–$100
Price range
Great$12.88–$93.23cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.5%return rate — above 5% kills the launch gate
Competition
Great36%top-5 click share — an open shelf
Conversion
Good6.0%search→purchase rate — share of searches ending in a sale
Market size
Good$437K$437K/yr · 241K searches
Review moat
Okay2,377.84avg incumbent reviews — the moat a new listing must climb
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-19.9%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 28.5 basketball indoor is a $437K/yr Amazon United States market (241K searches/yr). The top 5 brands hold 86% of demand. Verdict: Worth a look — 55/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
28.5 basketball indoor market data
- Units sold / yr
- 15K–20K
- avg 250–500/product
- Revenue / yr
- $452K–$603K
- units × avg price
- Conversion rate
- 6.0%
- Avg BSR
- #85
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 86%
- Out of stock
- 1.4%
- Avg brand age
- 49 months
- Avg seller age
- 139 days
Competition & brand share
Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.Brands
14 rising
Sellers
49
Top-5 brand share
86%
Top 20: 100%
Top-5 click share
36%
Top 20: 79%
Open market
12%
- WILSON60%
- Spalding10%
- BALSMART6%
- AND16%
- PECOGO3%
- Senston3%
- Open — no brand owns it (8 brands, 12%)
Top 28.5 basketball indoor search terms
- outdoor basketball size 616K/yr
- size 6 basketball outdoor15K/yr
- 28.5 basketball indoor/outdoor26K/yr
- wilson basketball size 616K/yr
- 28.5 basketball outdoor13K/yr
- 28.5 basketball indoor43K/yr
- indoor basketball size 616K/yr
- size 6 basketball indoor/outdoor11K/yr
- size 6 basketball indoor19K/yr
- size 6 outdoor basketball6K/yr
Top 28.5 basketball indoor products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
WILSON NCAA Verified Indoor/Outdoor Basketball - Brown/Black Size 6-28.5
WILSON$32.594.5★65 rev
WILSON NBA Authentic Series Basketball - Outdoor Size 6 - 28.5 Brown
WILSON$27.004.6★3,317 rev
WILSON NCAA Replica Basketball - Size 6-28.5
WILSON$43.174.8★327 rev
BALSMART Size 6 Basketball for Womens 28.5 Basketball for Indoor Outdoor Play
BALSMART$17.254.5★203 rev
WILSON NBA DRV Series Basketball - DRV Brown Size 6-28.5
WILSON$12.884.6★10,838 rev
Newest
by launch date
adidas Unisex-Adult All Court 3.0 Basketball Natural/Black 6
adidas$23.18312 rev
BALSMART Size 6 Basketball for Womens 28.5 Basketball for Indoor Outdoor Play
BALSMART$17.25203 rev
WILSON NCAA Verified Indoor/Outdoor Basketball - Brown/Black Size 6-28.5
WILSON$32.5965 rev
WILSON Caitlin Clark Envision Basketball - Blue Size 6-28.5
WILSON$27.21105 rev
WILSON Caitlin Clark Envision Basketball - Blue Size 5-27.5
WILSON$27.7658 rev
Trending
90-day click momentumWILSON NCAA Verified Indoor/Outdoor Basketball - Brown/Black Size 6-28.5
WILSON$32.594.5★
XEDGE Basketball 28.5 Size 6 Indoor Outdoor Leather Basketball Set (Orange Size 6)
XEDGE$33.684.1★
BALSMART Size 6 Basketball for Womens 28.5 Basketball for Indoor Outdoor Play
BALSMART$17.254.5★
WILSON Caitlin Clark Envision Basketball - Blue Size 5-27.5
WILSON$27.764.8★
Spalding Street Outdoor Basketball 29.5
Spalding$22.934.6★
What buyers say about 28.5 basketball indoor
What buyers praise and complain about, mined from review topics.What buyers love
“The quality is solid”
“Decent price”
“easy to grip”
“Works great, just as advertised”
“Good size and easy to pump up”
“Great color”
“has held up well since purchasing/using”
“Its designed for indoor use”
“is fully pumped”
“Fun”
What buyers complain about
“Deflated”
“it also leaks at the valve”
“Wrong size was sent”
“Extremely cheap feel and terrible quality”
“Ball got warped after a month of normal use”
“Well after using this maybe four times it started going flat”
“Grip could be better”
“It came looking used with scuff marks”
“Size in the description was inaccurate”
“cant always have the noise”
Top return reasons
Common questions
- Is 28.5 basketball indoor profitable to sell on Amazon United States?
- The niche generates $437K/yr across 44 tracked products. 5 of 9 products launched in the last 360 days are still selling. 90-day search growth is -19.9%. Flapen's verdict: Worth a look (55/100).
- How competitive is the 28.5 basketball indoor niche?
- 14 brands and 49 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 86% of demand.
- What do buyers complain about in 28.5 basketball indoor?
- Top complaints mined from reviews: Inflation/Deflation, Leak-Proof, Size-Overall. The return rate is 1.5%.
- What does it cost to enter the 28.5 basketball indoor niche?
- Listings span $12.88–$93.23; the average listing price is $30.15 (sweet spot $15–$100). The average incumbent carries 2,378 reviews — the moat a new listing must climb.