Recently Added

Men's Callaway X-18 Right Handed Iron Set Stiff Flex Steel Shaft (Used)
bardownboy22
Men's Callaway X-18 Right Handed Iron Set Stiff Flex Steel Shaft (Used)
$450
2024 Rawlings Icon Composite USSSA Certified Bat (-10) 17 oz 27" (Used)
sakevinl
2024 Rawlings Icon Composite USSSA Certified Bat (-10) 17 oz 27" (Used)
$200
Retail price: $399
Intermediate CCM Jetspeed FT7 Pro Right Handed Hockey Stick P90TM (New)
Quinner28
Intermediate CCM Jetspeed FT7 Pro Right Handed Hockey Stick P90TM (New)
$150
Brown Boys Small / Medium New Era Hat (New)
Jaydenh23
Brown Boys Small / Medium New Era Hat (New)
$25
Retail price: $40
Medium/Large EvoShield XVT Batting Helmet (Used)
Jcenpowers
Medium/Large EvoShield XVT Batting Helmet (Used)
$20
Retail price: $60
HEAD Auxetic 2.0 Extreme Pro Tennis Racquet (Used)
Romani
HEAD Auxetic 2.0 Extreme Pro Tennis Racquet (Used)
$195
Retail price: $300
2025 Wilson A2000 1786 11.5” Infield Baseball Glove Pink/Black
Edds19
2025 Wilson A2000 1786 11.5” Infield Baseball Glove Pink/Black
$295
Retail price: $295
Bauer Supreme Mach Gloves 9" (Used)
Jesse1902
Bauer Supreme Mach Gloves 9" (Used)
$40
Retail price: $90
Men's TaylorMade 300 Mini Right Handed Driver Stiff Flex 11.5 Loft (Used)
adtwenty7
Men's TaylorMade 300 Mini Right Handed Driver Stiff Flex 11.5 Loft (Used)
$250
Motorcycle helmets adult
IHSJ
Motorcycle helmets adult
$150
Retail price: $200
Head speed Mp legend! 2024, Great Condition
Romani
Head speed Mp legend! 2024, Great Condition
$195
Retail price: $279
Nike x England National Team 20/21 Stadium Away Jersey Women’s - Size Medium
FutbolMomentum
Nike x England National Team 20/21 Stadium Away Jersey Women’s - Size Medium
$53
Retail price: $90
New in Bag White NHL Reebok Practice Hockey Socks-XL+
bluenote14grs
New in Bag White NHL Reebok Practice Hockey Socks-XL+
$30
2025 Marucci CATX2 Alloy USSSA Certified Bat (-10) 18 oz 28" (New)
UpUpandAway
2025 Marucci CATX2 Alloy USSSA Certified Bat (-10) 18 oz 28" (New)
$150
Brian’s Optik X3 Blocker Intermediate Use Black And White
Squigs68
Brian’s Optik X3 Blocker Intermediate Use Black And White
$100
Retail price: $300
NEW DeMarini CF 29/19 (-10) USABat Baseball Bat
BoomStickSideline Pro
NEW DeMarini CF 29/19 (-10) USABat Baseball Bat
$180
Retail price: $400
New In Bag Buffalo Sabers Stock Navy Blue Senior Adidas Pro Stock Socks Size XL+
bluenote14grs
New In Bag Buffalo Sabers Stock Navy Blue Senior Adidas Pro Stock Socks Size XL+
$30
Retail price: $79
(2 Glove Sets) Bauer Pro Stock Hyperlite Goalie Full Set
RaeleneMennig87
(2 Glove Sets) Bauer Pro Stock Hyperlite Goalie Full Set
$648
Retail price: $3,200
YONEX Vcore 100 2023 7g Tennis Racquet (Used)
Romani
YONEX Vcore 100 2023 7g Tennis Racquet (Used)
$189
Retail price: $279
2 pack CCM Jetspeed FT7 Pro LH 70 Flex P29M
HockeyOnSaleSideline Pro+
2 pack CCM Jetspeed FT7 Pro LH 70 Flex P29M
$380
Retail price: $800

Price Drops

2022 DeMarini The Goods Hybrid USSSA Certified Bat (-10) Hybrid 19 oz 29" (Used)
Mariojrherrera
2022 DeMarini The Goods Hybrid USSSA Certified Bat (-10) Hybrid 19 oz 29" (Used)
$63$7010%
10% PRICE DROP
Retail price: $300
Cascade XRS Helmet (Used)
laxplayer_ma
Cascade XRS Helmet (Used)
$162$18010%
10% PRICE DROP
Retail price: $250
Ccm eflex5 senior goalie pads
cj29
Ccm eflex5 senior goalie pads
$446$49510%
19% PRICE DROP
2025 Easton Ghost OG Bat (-11) 22 oz 33" (New)
amiramar
2025 Easton Ghost OG Bat (-11) 22 oz 33" (New)
$351$39010%
10% PRICE DROP
Retail price: $450
Black Size 12 Nils (Used) Jacket
PamKlickna
Black Size 12 Nils (Used) Jacket
$42$4711%
35% PRICE DROP
Retail price: $280
CCM Jetspeed FT 7 Pro New
BauerboyzSideline Pro
CCM Jetspeed FT 7 Pro New
$194$21510%
10% PRICE DROP
Retail price: $260
Maverik Optik Force w Traditional Stringing
hbushnell23
Maverik Optik Force w Traditional Stringing
$139$15913%
13% PRICE DROP
Retail price: $200
Junior Bauer Vapor Hyperlite 2 Left Hand Hockey Stick P28 (New)
BauerboyzSideline Pro
Junior Bauer Vapor Hyperlite 2 Left Hand Hockey Stick P28 (New)
$180$20010%
10% PRICE DROP
Retail price: $240
Senior Bauer Nexus Sync Right Handed Hockey Stick P92M Pro Stock (New)
sean_connolly24
Senior Bauer Nexus Sync Right Handed Hockey Stick P92M Pro Stock (New)
$255$30015%
15% PRICE DROP
Retail price: $350
Gray New Bonobos Men's Golf Shorts
amirosenfeld10
Gray New Bonobos Men's Golf Shorts
$9$1013%
74% PRICE DROP
Retail price: $98
Brand New dunning Full Zip Sweatshirt
amirosenfeld10
Brand New dunning Full Zip Sweatshirt
$8$915%
78% PRICE DROP
Retail price: $79
String Head w ECD Hero 3.0
hbushnell23
String Head w ECD Hero 3.0
$62$6910%
10% PRICE DROP
New Traditional Box Lacrosse Head
hbushnell23
New Traditional Box Lacrosse Head
$67$7915%
3% PRICE DROP
Retail price: $120
Tradional Strung Box Head (single weave)
hbushnell23
Tradional Strung Box Head (single weave)
$71$7910%
-2% PRICE DROP
Marucci CAT X2 USSSA Certified Bat (-8) Alloy 24 oz 32" (New)
UpUpandAway
Marucci CAT X2 USSSA Certified Bat (-8) Alloy 24 oz 32" (New)
$200$22511%
11% PRICE DROP
New Traditional Box Lacrosse Head
hbushnell23
New Traditional Box Lacrosse Head
$62$6910%
22% PRICE DROP
Retail price: $120
Bauer Vapor X700 8D
travismhughes
Bauer Vapor X700 8D
$40$4612%
55% PRICE DROP
Retail price: $500
ECD Rebel Traditional Stringing
hbushnell23
ECD Rebel Traditional Stringing
$135$15915%
16% PRICE DROP
Retail price: $210
True key Bx w Traditional Stringing
hbushnell23
True key Bx w Traditional Stringing
$76$8915%
15% PRICE DROP
Retail price: $130
ECD Strung Mirage 2.0 Graphene Head (Used)
Tvas08
ECD Strung Mirage 2.0 Graphene Head (Used)
$65$7210%
19% PRICE DROP
Retail price: $120

Recently Sold

Warstic Bonesaber Alloy USSSA Certified Bat (-8) Alloy 24 oz 32" (Used)
GT_Baseball_Dad
Warstic Bonesaber Alloy USSSA Certified Bat (-8) Alloy 24 oz 32" (Used)
$93
SOLD
Sim 2 Max Driver
Ianphrak
Sim 2 Max Driver
$100
SOLD
Retail price: $200
2022 Easton Ghost Composite Bat (-11) Composite 22 oz 33" (Used)
sportsxchangeSideline Pro+
2022 Easton Ghost Composite Bat (-11) Composite 22 oz 33" (Used)
$127
SOLD
Retail price: $400
2024 Warstic Bonesaber Hybrid BBCOR Certified Bat (-3) 18 oz 31" (Used)
dogboy87
2024 Warstic Bonesaber Hybrid BBCOR Certified Bat (-3) 18 oz 31" (Used)
$125
SOLD
All Star System 7 Catcher's Set green
jlibby72
All Star System 7 Catcher's Set green
$175
SOLD
Retail price: $499
Cobra F-Max Superlite Hybrid Stiff Flex 4H (New)
Bestpricebob
Cobra F-Max Superlite Hybrid Stiff Flex 4H (New)
$119
SOLD
Retail price: $199
2024 Rawlings Right Hand Throw Infield Pro Preferred Baseball Glove 11.5" (New)
AdamShanenko
2024 Rawlings Right Hand Throw Infield Pro Preferred Baseball Glove 11.5" (New)
$262
SOLD
Retail price: $400
CCM Vizion 50 Flex P28 curve right hand stick
Hops4
CCM Vizion 50 Flex P28 curve right hand stick
$161
SOLD
Retail price: $299
Intermediate Bauer Proto-R Hockey Stick Right Handed | P92 Flex 65 (Used)
GrittySportSideline Pro+
Intermediate Bauer Proto-R Hockey Stick Right Handed | P92 Flex 65 (Used)
$160
SOLD
Retail price: $360
Akadema LHT Precision Series First Base ADJ154 Baseball Glove 12.5" (Used)
Kmuels
Akadema LHT Precision Series First Base ADJ154 Baseball Glove 12.5" (Used)
$79
SOLD
Retail price: $200
CCM Jr Coyotes 15 Inch Hockey Gloves
Vietnahl10
CCM Jr Coyotes 15 Inch Hockey Gloves
$36
SOLD
Callway 3 Wood
amareg
Callway 3 Wood
$80
SOLD
New Black CCM Adult Hockey Warm Up Pant | Senior XXL | #888600266640
TopFlightHockeySideline Pro+
New Black CCM Adult Hockey Warm Up Pant | Senior XXL | #888600266640
$35
SOLD
Retail price: $70
Warroad 1/4 zip hoodie Sr. XXL
Golfnski247
Warroad 1/4 zip hoodie Sr. XXL
$21
SOLD
Retail price: $110
CCM JetSpeed FT2 Right Handed Hockey Stick | Senior 65 Flex
blowout_bargainsSideline Pro+
CCM JetSpeed FT2 Right Handed Hockey Stick | Senior 65 Flex
$35
SOLD
Medium Senior CCM Tacks 9550 Hockey Pants (Used)
MrChikenMastr
Medium Senior CCM Tacks 9550 Hockey Pants (Used)
$35
SOLD
CCM Tacks AS-580 Senior Medium Pants
Hops4
CCM Tacks AS-580 Senior Medium Pants
$89
SOLD
Retail price: $129
Black Used Medium CCM Jersey
snossednlost
Black Used Medium CCM Jersey
$4
SOLD
Marucci CAT9 Pastime 30 inch drop 10
grites54
Marucci CAT9 Pastime 30 inch drop 10
$61
SOLD
Marucci CAT9 Pastime (2 3/4") USSSA Bat 2021 (-8)
sportsxchangeSideline Pro+
Marucci CAT9 Pastime (2 3/4") USSSA Bat 2021 (-8)
$65
SOLD
Retail price: $280

From the Blog

Baseball Dad Hack: Buying, Selling, and Trading on SidelineSwap
Baseball Dad Hack: Buying, Selling, and Trading on SidelineSwap

Bryan Weston's journey into buying and selling sports gear started in a relatable way —as a dad trying to keep up with his son's evolving baseball needs.

Breaking the Ice: The Hustle Behind Top Flight Hockey’s Million-Dollar Success
Breaking the Ice: The Hustle Behind Top Flight Hockey’s Million-Dollar Success

For Quinton "Q" Oster and Dan Mikrut, two lifelong hockey enthusiasts, their hockey business started with one simple idea.

Vintage Sports, Unique Stories: Inside the World of Pro Seller Zach’s Trunk Show
Vintage Sports, Unique Stories: Inside the World of Pro Seller Zach’s Trunk Show

After leaving a desk job he despised in April of 2018, Zach dove headfirst into the world of sports resale—and hasn’t looked back.