Players: last names starting with B
288 players, with the number of cards for each.
- Lake Bachar 4
- Sam Bachman 9
- Kyle Backhus 5
- Wally Backman 2
- Mahki Backstrom 4
- Akil Baddoo 11
- Harrison Bader 44
- Ji Hwan Bae 23
- Henry Baez 1
- Javy Baez 2
- Jesus Baez 7
- Joshua Baez 21
- Juan Baez 10
- Luis Baez 22
- Mario Baez 2
- Ethan Bagwell 3
- Jeff Bagwell 184
- Benyamin Bailey 6
- Patrick Bailey 84
- Harold Baines 21
- Bryan Baker 2
- Darren Baker 37
- Dru Baker 12
- Dusty Baker 18
- Luken Baker 20
- Jordan Balazovic 16
- Leonardo Balcazar 13
- Brooks Baldwin 32
- Drake Baldwin 159
- Rachel Balkovec 5
- Moisés Ballesteros 83
- Anthony Banda 2
- Sal Bando 2
- Will Banfield 12
- Ernie Banks 115
- Tanner Banks 3
- Zion Bannister 1
- Anthony Baptist 4
- Gustavo Baptista 5
- Red Barber 2
- Hunter Barco 34
- Daniel Bard 8
- Addison Barger 36
- Jordy Barley 2
- Al Barlick 1
- Joe Barlow 3
- Scott Barlow 6
- Austin Barnes 11
- Matt Barnes 2
- Mason Barnett 33
- Tucker Barnhart 4
- Boston Baro 5
- Matt Barr 3
- Jose Barrero 6
- Yulian Barreto 3
- Brandon Barriera 11
- Gregory Barrios 5
- Jorge Barrosa 19
- Joey Bart 27
- Osleivis Basabe 41
- Samuel Basallo 243
- Chris Bassitt 39
- Brady Basso 12
- Abel Bastidas 2
- Boston Bateman 8
- Brett Bateman 3
- Carlos Batista 1
- Matthew Batten 17
- Peyton Battenfield 9
- Earl Battey 2
- Brett Baty 251
- Hank Bauer 3
- Trevor Bauer 4
- Jake Bauers 16
- Garrett Baumann 4
- Mike Baumann 1
- Jackson Baumeister 1
- Carter Baumler 2
- Erick Bautista 1
- Félix Bautista 22
- Yorger Bautista 14
- Shane Baz 52
- Travis Bazzana 174
- David Bañuelos 11
- Drew Beam 8
- Dylan Beavers 93
- Brendan Beck 4
- Jordan Beck 80
- Tristan Beck 2
- Nick Becker 8
- David Bednar 47
- Will Bednar 2
- Seth Beer 19
- Clayton Beeter 15
- Charlie Beilenson 3
- Cool Papa Bell 8
- George Bell 2
- JAMES "COOL PAPA" Bell 4
- Josh Bell 51
- Liberty Bell 2
- Andrew Bellatti 6
- Brian Van Belle 3
- Cody Bellinger 321
- Brayan Bello 73
- Valente Bellozo 14
- Brandon Belt 7
- Eduardo Beltre 3
- Manuel Beltre 4
- Carlos Beltrán 74
- Adrián Beltré 287
- Max Belyeu 9
- Johnny Bench 235
- Carson Benge 145
- Andrew Benintendi 70
- Diego Benitez 4
- Jake Bennett 25
- Will Benson 47
- Ryan Bergert 4
- William Bergolla 10
- Jonathan Bermúdez 3
- Warming Bernabel 46
- Leonardo Bernal 6
- Derek Bernard 2
- Wynton Bernard 5
- Yogi Berra 96
- Prelander Berroa 17
- Steward Berroa 11
- Jacob Berry 13
- José Berríos 77
- Jon Berti 26
- Jay Beshears 5
- Christian Bethancourt 9
- Mookie Betts 727
- Tanner Bibee 77
- Bo Bichette 397
- Nick Biddison 9
- Osvaldo Bido 17
- Shane Bieber 182
- Brandon Bielak 1
- Justice Bigbie 3
- Hunter Bigge 5
- Cavan Biggio 22
- Craig Biggio 184
- Alex Binelas 2
- Ryan Birchard 1
- Jake Bird 8
- Brandon Birdsell 1
- Hayden Birdsong 61
- Hunter Bishop 3
- Eric Bitonti 8
- Spencer Bivens 5
- Mason Black 13
- Tyler Black 57
- Paul Blackburn 20
- Charlie Blackmon 98
- JoJo Blackmon 1
- Bradley Blalock 16
- Dairon Blanco 8
- Fabricio Blanco 9
- Ronel Blanco 48
- Sebastian Blanco 9
- JJ Bleday 111
- Richard Bleier 2
- Miguel Bleis 9
- Ryan Bliss 37
- Jake Bloss 30
- AJ Blubaugh 8
- Vida Blue 9
- Bert Blyleven 61
- Bruce Bochy 1
- Caden Bodine 11
- Bryce Boettcher 3
- Mike Boeve 8
- Xander Bogaerts 306
- Wade Boggs 257
- Alec Bohm 127
- Jace Bohrofen 6
- Manuel Bolivar 8
- Henry Bolte 12
- Cody Bolton 5
- Barry Bonds 119
- Caleb Bonemer 23
- Enmanuel Bonilla 9
- Cam Booser 2
- David Bote 2
- Sean Bouchard 16
- Lou Boudreau 11
- Caleb Boushley 2
- Cody Bowker 3
- Jonathan Bowlan 13
- Cooper Bowman 1
- Brad Boxberger 3
- Crawford Boxes 2
- Emaarion Boyd 4
- Justin Boyd 9
- Matt Boyd 4
- Matthew Boyd 24
- Joe Boyle 11
- Joey Boyle 2
- Aubry Bracco 2
- Bryce Bradford 2
- Cody Bradford 8
- Kyle Bradish 33
- Taj Bradley 79
- Jack Brannigan 9
- Brooks Brannon 7
- Michael Brantley 24
- Matt Brash 3
- Ryan Braun 1
- Steve Braun 1
- Bralyn Brazoban 8
- John Brebbia 2
- Brody Brecht 12
- Alex Bregman 465
- Tyler Bremner 31
- Will Brennan 37
- Jacob Bresnahan 5
- Eddie Bressoud 1
- George Brett 342
- Josue Briceno 15
- Jonah Bride 16
- Roberto Clemente Bridge 2
- Beau Brieske 3
- Braden Bristo 3
- Anderson Brito 4
- Dawvris Brito 10
- Heins Brito 3
- Jhony Brito 17
- Juan Brito 15
- Roldy Brito 7
- Lou Brock 94
- Trenton Brooks 4
- Mike Brosseau 3
- Ben Brown 50
- Hunter Brown 115
- Mace Brown 1
- Marcus Brown 3
- McCade Brown 5
- Seth Brown 21
- JT Brubaker 8
- Vidal Brujan 65
- Slater de Brun 11
- Jalen Brunson 2
- Kris Bryant 303
- Zach Brzykcy 4
- Kris Bubic 20
- Bill Buckner 3
- Walker Buehler 125
- Mark Buehrle 27
- Brayan Buelvas 2
- Jay Buhner 10
- Blaine Bullard 5
- Al Bumbry 1
- Aaron Bummer 2
- Dylan Bundy 4
- Jim Bunning 9
- Lew Burdette 1
- Zack Burdi 1
- Peyton Burdick 7
- Jake Burger 50
- Jorge Burgos 3
- Juan Burgos 6
- Raymond Burgos 3
- Blake Burke 12
- Glenn Burke 1
- Jacob Burke 6
- Sean Burke 14
- Blake Burkhalter 8
- Griffin Burkholder 13
- Ellis Burks 1
- Alec Burleson 94
- Corbin Burnes 255
- Chase Burns 215
- Collin Burns 1
- Connor Burns 3
- Jeff Burroughs 3
- Ryan Burrowes 5
- Beau Burrows 1
- Michael Burrows 1
- Mike Burrows 13
- Michael Busch 100
- Ky Bush 12
- Will Bush 1
- Lawrence Butler 186
- Brandon Butterworth 1
- Jose Butto 12
- Byron Buxton 522
- Javier Báez 162