The Chicago Colts have put up the most runs by a team in a game, with 36 runs versus the Louisville Colonels on June 29, 1897.
Interpreted as:
most runs in a regular-season game by a team through the 3rd inning| TEAM | R | DATE | TM | OPP | RESULT | AB | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Colts | 36 | 6/29/1897 |  CHI | vs | LOU | W 36-7 | ||||||||||||||||||||||
| 2 | | White Stockings | 35 | 7/24/1882 | CWS | vs | CLE | W 35-4 | ||||||||||||||||||||||
| 3 | | White Stockings | 31 | 7/3/1883 | CWS | vs | BUF | W 31-7 | ||||||||||||||||||||||
| 4 |  | Rangers | 30 | 8/22/2007 |  TEX | @ |  BAL | W 30-3 | 57 | 29 | 2 | 0 | 6 | 30 | 8 | 0 | 11 | 0 | 0 | 65 | 49 | 8 | 0 | 0 | 0 | 0 | .509 | .569 | .860 | 1.429 |
| 5 |  | Reds | 30 | 6/18/1893 |  CIN | vs | LOU | W 30-12 | ||||||||||||||||||||||
| 6 |  | Brewers | 30 | 9/10/1891 |  MIL | vs |  WSH | W 30-3 | ||||||||||||||||||||||
| 7 | Athletics | 30 | 6/26/1890 | PHP | @ | BUF | W 30-12 | |||||||||||||||||||||||
| 8 |  | Beaneaters | 30 | 6/9/1883 |  BSN | vs | DET | W 30-8 | ||||||||||||||||||||||
| 9 | | White Stockings | 30 | 7/22/1876 | CWS | vs | LOU | W 30-7 | ||||||||||||||||||||||
| 10 | | Braves | 29 | 9/9/2020 | ATL | vs |  MIA | W 29-9 | 47 | 23 | 2 | 0 | 7 | 28 | 9 | 1 | 9 | 2 | 0 | 58 | 46 | 9 | 0 | 1 | 0 | 0 | .489 | .569 | .979 | 1.548 |
| 11 |  | White Sox | 29 | 4/23/1955 |  CWS | @ |  KCA | W 29-6 | 54 | 29 | 5 | 0 | 7 | 28 | 6 | 1 | 4 | 1 | 1 | 63 | 55 | 12 | 0 | 2 | 1 | 0 | .537 | .571 | 1.019 | 1.590 |
| 12 |  | Red Sox | 29 | 6/8/1950 |  BSA | vs |  SLA | W 29-4 | 53 | 28 | 9 | 1 | 7 | 29 | 11 | 0 | 2 | 0 | 0 | 64 | 60 | 17 | 0 | 0 | 0 | .528 | .609 | 1.132 | 1.741 | |
| 13 |  | Phillies | 29 | 8/17/1894 |  PHI | vs | LOU | W 29-4 | ||||||||||||||||||||||
| 14 |  | Giants | 29 | 6/15/1887 |  NYG | vs | PHN | W 29-1 | ||||||||||||||||||||||
| 15 | | Beaneaters | 29 | 6/20/1883 | BSN | vs | PHN | W 29-4 | ||||||||||||||||||||||
| 16 |  | Blue Jays | 28 | 7/22/2022 |  TOR | @ |  BOS | W 28-5 | 57 | 29 | 5 | 0 | 5 | 28 | 5 | 1 | 9 | 0 | 0 | 63 | 49 | 10 | 0 | 0 | 0 | 0 | .509 | .556 | .860 | 1.415 |
| 17 |  | Cardinals | 28 | 7/6/1929 |  SLN | @ | PHN | W 28-6 | 53 | 28 | 4 | 1 | 2 | 25 | 9 | 1 | 1 | 0 | 0 | 65 | 40 | 7 | 2 | .528 | .603 | .755 | 1.358 | |||
| 18 |  | Beaneaters | 28 | 9/3/1896 |  BSN | vs | STL | W 28-7 | ||||||||||||||||||||||
| 19 | | Colts | 28 | 8/25/1891 | CHI | vs |  BKN | W 28-5 | ||||||||||||||||||||||
| 20 | Ward's Wonders | 28 | 7/12/1890 | BKP | vs | BUF | W 28-16 | |||||||||||||||||||||||
| 21 |  | Athletics | 28 | 4/23/1888 |  PHA | vs | CLE | W 28-7 | ||||||||||||||||||||||
| 22 | | Beaneaters | 28 | 8/27/1887 | BSN | vs |  PIT | W 28-14 | ||||||||||||||||||||||
| 23 | Browns | 28 | 4/30/1887 | STL | vs | CLE | W 28-11 | |||||||||||||||||||||||
| 24 | Grays | 28 | 8/21/1883 | PRO | vs | PHN | W 28-0 | |||||||||||||||||||||||
| 25 | Dark Blues | 28 | 5/13/1876 | HAR | vs |  NYM | W 28-3 | |||||||||||||||||||||||
Results may be incomplete. StatMuse has complete team, game-level data for runs going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
Brewers 
COL 
Mets 
Yankees 
Tigers 
Twins 
Mariners 
Astros 
CLE 
KCR 
ATH 
LAA 
WSH 
