16 players are tied for the highest career on-base percentage by a player younger than 23 in the postseason, with an on-base percentage of 1.000. The first three are Harry Ford, Jasson Domínguez and Nolan Gorman.
| NAME | OBP | Age | G | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | H. Ford | 1.000 | 22 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 2 |  | J. Domínguez | 1.000 | 22 | 4 | 1 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 1.000 | 2.000 | 3.000 |
| 3 | | N. Gorman | 1.000 | 22 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 4 | | D. Pompey | 1.000 | 22 | 5 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 5 | | J. Profar | 1.000 | 19 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 6 | | J. Montero | 1.000 | 21 | 1 | 2 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 7 | | D. Willis | 1.000 | 21 | 6 | 3 | 1 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 5 | 1 | 0 | 0 | 0 | 0 | 1.000 | 1.667 | 2.667 |
| 8 | | M. Davis | 1.000 | 22 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 9 | | J. Buchek | 1.000 | 22 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 10 | | J. Podres | 1.000 | 20 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 | |
| 11 | | B. Brown | 1.000 | 22 | 4 | 3 | 2 | 3 | 2 | 0 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 4 | 5 | 2 | 0 | 0 | 0 | 1.000 | 1.667 | 2.667 | |
| 12 | | J. Thompson | 1.000 | 22 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 1.000 | 1.000 | 2.000 | |
| 13 | | K. O'Dea | 1.000 | 22 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 | |
| 14 | | B. Tate | 1.000 | 22 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | ||||
| 15 | | L. Gilbert | 1.000 | 22 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | ||||
| 16 | | W. Wyckoff | 1.000 | 22 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 1.000 | 2.000 | 3.000 | |
| 17 | | J. Loney | .800 | 22 | 1 | 4 | 0 | 3 | 0 | 0 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 5 | 3 | 0 | 0 | 0 | 0 | 1 | .750 | .750 | 1.550 |
| 18 | | R. Hebner | .750 | 22 | 2 | 6 | 0 | 4 | 2 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 8 | 6 | 2 | 0 | 0 | 0 | 0 | .667 | 1.000 | 1.750 |
| 19 | | J. De Paula | .667 | 21 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .667 |
| 20 |  | S. Stewart | .600 | 21 | 2 | 4 | 0 | 2 | 0 | 0 | 0 | 4 | 1 | 0 | 1 | 1 | 0 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | 1.100 |
| 21 | | T. McCarver | .552 | 22 | 7 | 23 | 4 | 11 | 1 | 1 | 1 | 5 | 5 | 0 | 1 | 1 | 0 | 29 | 17 | 3 | 0 | 1 | 1 | 0 | .478 | .739 | 1.291 |
| 22 |  | G. Henderson | .538 | 22 | 3 | 12 | 3 | 6 | 0 | 0 | 1 | 2 | 1 | 0 | 4 | 0 | 1 | 13 | 9 | 1 | 0 | 0 | 0 | 0 | .500 | .750 | 1.288 |
| 23 |  | J. Upton | .526 | 19 | 6 | 14 | 2 | 5 | 1 | 1 | 0 | 1 | 3 | 2 | 3 | 1 | 0 | 19 | 8 | 2 | 0 | 0 | 0 | 0 | .357 | .571 | 1.098 |
| 24 | | A. Genao | .500 | 22 | 6 | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | .500 | 1.000 | 1.500 |
| 25 | | J. Lawlar | .500 | 20 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .500 |
StatMuse has game-level data for on-base percentage and player age going back to the 1903 playoffs.
Some of the information used here was obtained free of charge from Retrosheet.
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| NL East | W | L | PCT | GB |
|---|---|---|---|---|
 Braves - y | 94 | 68 | .580 | |
 Phillies - w | 88 | 74 | .543 | 6.0 |
80 | 82 | .494 | 14.0 | |
77 | 85 | .475 | 17.0 | |
74 | 88 | .457 | 20.0 | |
| NL Central | W | L | PCT | GB |
 Brewers - y | 103 | 59 | .636 | |
 Cubs - w | 89 | 73 | .549 | 14.0 |
82 | 80 | .506 | 21.0 | |
77 | 85 | .475 | 26.0 | |
75 | 87 | .463 | 28.0 | |
| NL West | W | L | PCT | GB |
 Dodgers - y | 100 | 62 | .617 | |
 Padres - w | 91 | 71 | .562 | 9.0 |
86 | 76 | .531 | 14.0 | |
65 | 97 | .401 | 35.0 | |
58 | 104 | .358 | 42.0 |
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Nationals
Mets
Pirates
Cardinals
Reds
Diamondbacks
Giants
Rockies| AL East | W | L | PCT | GB |
|---|---|---|---|---|
 Rays - y | 98 | 64 | .605 | |
 Yankees - w | 93 | 68 | .578 | 4.5 |
 Red Sox - w | 87 | 75 | .537 | 11.0 |
79 | 82 | .491 | 18.5 | |
79 | 83 | .488 | 19.0 | |
| AL Central | W | L | PCT | GB |
 Guardians - y | 85 | 77 | .525 | |
 White Sox - w | 84 | 78 | .519 | 1.0 |
77 | 85 | .475 | 8.0 | |
76 | 86 | .469 | 9.0 | |
69 | 93 | .426 | 16.0 | |
| AL West | W | L | PCT | GB |
 Astros - y | 81 | 81 | .500 | |
80 | 82 | .494 | 1.0 | |
76 | 86 | .469 | 5.0 | |
64 | 98 | .395 | 17.0 | |
62 | 100 | .383 | 19.0 |
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Blue Jays
Twins
Tigers
Royals