No completed MLB games for December 15, 2023.
American League
| East | W | L | Pct | GB | Strk |
|---|
| Rays | 60 | 43 | .583 | - | W1 |
| Yankees | 58 | 45 | .563 | 2 | W2 |
| Red Sox | 53 | 50 | .515 | 7 | L1 |
| Orioles | 50 | 54 | .481 | 10.5 | L1 |
| Blue Jays | 48 | 57 | .457 | 13 | W1 |
| Central | W | L | Pct | GB | Strk |
|---|
| White Sox | 54 | 48 | .529 | - | L1 |
| Guardians | 54 | 51 | .514 | 1.5 | L3 |
| Twins | 51 | 54 | .486 | 4.5 | L1 |
| Tigers | 50 | 55 | .476 | 5.5 | L1 |
| Royals | 44 | 62 | .415 | 12 | W1 |
| West | W | L | Pct | GB | Strk |
|---|
| Rangers | 52 | 51 | .505 | - | W1 |
| Mariners | 51 | 53 | .490 | 1.5 | L3 |
| Astros | 51 | 54 | .486 | 2 | W4 |
| Athletics | 44 | 59 | .427 | 8 | W1 |
| Angels | 41 | 64 | .390 | 12 | L3 |
National League
| East | W | L | Pct | GB | Strk |
|---|
| Braves | 61 | 42 | .592 | - | W3 |
| Phillies | 56 | 48 | .538 | 5.5 | L3 |
| Nationals | 53 | 52 | .505 | 9 | W1 |
| Marlins | 52 | 52 | .500 | 9.5 | L10 |
| Mets | 43 | 61 | .413 | 18.5 | L2 |
| Central | W | L | Pct | GB | Strk |
|---|
| Brewers | 64 | 39 | .621 | - | L1 |
| Cubs | 58 | 45 | .563 | 6 | W1 |
| Pirates | 53 | 51 | .510 | 11.5 | L2 |
| Cardinals | 52 | 51 | .505 | 12 | L2 |
| Reds | 48 | 54 | .471 | 15.5 | W3 |
| West | W | L | Pct | GB | Strk |
|---|
| Dodgers | 66 | 38 | .635 | - | W3 |
| Diamondbacks | 55 | 50 | .524 | 11.5 | L1 |
| Padres | 51 | 53 | .490 | 15 | W1 |
| Giants | 44 | 60 | .423 | 22 | W2 |
| Rockies | 42 | 63 | .400 | 24.5 | W1 |
American League
| Wild Card | W | L | Pct | WCGB | Strk |
|---|
| Yankees | 58 | 45 | .563 | +5 | W2 |
| Red Sox | 53 | 50 | .515 | - | L1 |
| Guardians | 54 | 51 | .514 | - | L3 |
| Mariners | 51 | 53 | .490 | 2.5 | L3 |
| Twins | 51 | 54 | .486 | 3 | L1 |
| Astros | 51 | 54 | .486 | 3 | W4 |
| Orioles | 50 | 54 | .481 | 3.5 | L1 |
| Tigers | 50 | 55 | .476 | 4 | L1 |
| Blue Jays | 48 | 57 | .457 | 6 | W1 |
| Athletics | 44 | 59 | .427 | 9 | W1 |
| Royals | 44 | 62 | .415 | 10.5 | W1 |
| Angels | 41 | 64 | .390 | 13 | L3 |
National League
| Wild Card | W | L | Pct | WCGB | Strk |
|---|
| Cubs | 58 | 45 | .563 | +4 | W1 |
| Phillies | 56 | 48 | .538 | +1.5 | L3 |
| Diamondbacks | 55 | 50 | .524 | - | L1 |
| Pirates | 53 | 51 | .510 | 1.5 | L2 |
| Cardinals | 52 | 51 | .505 | 2 | L2 |
| Nationals | 53 | 52 | .505 | 2 | W1 |
| Marlins | 52 | 52 | .500 | 2.5 | L10 |
| Padres | 51 | 53 | .490 | 3.5 | W1 |
| Reds | 48 | 54 | .471 | 5.5 | W3 |
| Giants | 44 | 60 | .423 | 10.5 | W2 |
| Mets | 43 | 61 | .413 | 11.5 | L2 |
| Rockies | 42 | 63 | .400 | 13 | W1 |