Editing Base on balls (section)

===Single-season===
{|class="wikitable" border="1"
|-
!scope="row"style="text-align:center;background-color: #ffffbb"|*
|Member of the [[National Baseball Hall of Fame]]
|}
<div style=display:inline-grid>
{| class="wikitable"
|+ style="text-align: center;" | Most by Batters
! Rank || Player || Year || Base on balls
|-
| 1 || rowspan="3" | [[Barry Bonds]] || [[2004 Major League Baseball season|2004]]|| 232
|-
| 2 || [[2002 Major League Baseball season|2002]]|| 198
|-
| 3 || [[2001 Major League Baseball season|2001]]|| 177
|-
| 4 || style="background:#ffffbb"|[[Babe Ruth]]* || [[1923 Major League Baseball season|1923]]|| 170
|-
| rowspan=3 | 5 || [[Mark McGwire]] || [[1998 Major League Baseball season|1998]]|| rowspan="3" | 162
|-
|style="background:#ffffbb"; rowspan="3"| [[Ted Williams]]* || [[1947 Major League Baseball season|1947]]
|-
| [[1949 Major League Baseball season|1949]]
|-
| 8 || [[1946 Major League Baseball season|1946]]|| 156
|-
| rowspan=2 | 9 || [[Barry Bonds]] || [[1996 Major League Baseball season|1996]]|| rowspan="2" | 151
|-
| [[Eddie Yost]] || [[1956 Major League Baseball season|1956]]
|}
</div>
<div style=display:inline-grid>
{| class="wikitable"
|+ style="text-align: center;" | Most by Pitchers
! Rank || Player || Year || Base on balls
|-
| 1 || style="background:#ffffbb"|[[Amos Rusie]]* || {{mlby|1890}} || 289
|-
| 2 || [[Mark Baldwin (baseball)|Mark Baldwin]] || {{mlby|1889}}|| 274
|-
| 3 || rowspan="2" style="background:#ffffbb" |[[Amos Rusie]]* || {{mlby|1892}} || 270
|-
| 4 || {{mlby|1891}} || 262
|-
| 5 || [[Mark Baldwin (baseball)|Mark Baldwin]] || {{mlby|1890}} || 249
|-
| 6 || [[Jack Stivetts]] || rowspan="3" | {{mlby|1891}} || 232
|-
| 7 || [[Mark Baldwin (baseball)|Mark Baldwin]] || 227
|-
| 8 || [[Phil Knell]] || 226
|-
| 9 || [[Bob Barr (1880s pitcher)|Bob Barr]] || {{mlby|1890}} || 219
|-
| 10 || style="background:#ffffbb"|[[Amos Rusie]]* || {{mlby|1893}} || 218
|}
</div>