Atlanta Braves First-Place Eliminiation Scenario
Atlanta must win 27 more games (27 total) to avoid elimination from first place.
Here are the final standings in a scenario in which Atlanta finishes in first place with 27 wins:

Team             W	L	PCT	GB
Atlanta          27	135	0.167	0.00
Washington       27	135	0.167	0.00
Miami            27	135	0.167	0.00
New York         27	135	0.167	0.00
Philadelphia     26	136	0.160	1.00

Tie breakers
Atlanta wins the series with Miami 7 games to 6
Atlanta wins the series with New York 7 games to 6
Atlanta wins the series with Washington 7 games to 6

To construct the scenario, we start with the current standings in the division:
Team             W	L	GL	PCT	GB
Atlanta          0	0	162	0.000	0.0
Miami            0	0	162	0.000	0.0
New York         0	0	162	0.000	0.0
Philadelphia     0	0	162	0.000	0.0
Washington       0	0	162	0.000	0.0

Next, we show how the remaining series of games plays out in the scenario:

Atlanta currently has 0 win(s) against Miami and 0 loss(es).
Atlanta wins 7 additional game(s) against Miami and loses 6.
Atlanta wins the series 7 games to 6.
Atlanta wins 1 additional game(s) against teams outside the division and loses 109.

Atlanta currently has 0 win(s) against New York and 0 loss(es).
Atlanta wins 7 additional game(s) against New York and loses 6.
Atlanta wins the series 7 games to 6.
Atlanta wins 1 additional game(s) against teams outside the division and loses 109.

Atlanta currently has 0 win(s) against Philadelphia and 0 loss(es).
Atlanta wins 5 additional game(s) against Philadelphia and loses 8.
Atlanta loses the series 5 games to 8.
Atlanta wins 1 additional game(s) against teams outside the division and loses 109.

Atlanta currently has 0 win(s) against Washington and 0 loss(es).
Atlanta wins 7 additional game(s) against Washington and loses 6.
Atlanta wins the series 7 games to 6.
Atlanta wins 1 additional game(s) against teams outside the division and loses 109.

Miami currently has 0 win(s) against New York and 0 loss(es).
Miami wins 7 additional game(s) against New York and loses 6.
Miami wins the series 7 games to 6.
Miami wins 1 additional game(s) against teams outside the division and loses 109.

Miami currently has 0 win(s) against Philadelphia and 0 loss(es).
Miami wins 13 additional game(s) against Philadelphia and loses 0.
Miami wins the series 13 games to 0.
Miami wins 1 additional game(s) against teams outside the division and loses 109.

Miami currently has 0 win(s) against Washington and 0 loss(es).
Miami wins 0 additional game(s) against Washington and loses 13.
Miami loses the series 0 games to 13.
Miami wins 1 additional game(s) against teams outside the division and loses 109.

New York currently has 0 win(s) against Philadelphia and 0 loss(es).
New York wins 8 additional game(s) against Philadelphia and loses 5.
New York wins the series 8 games to 5.
New York wins 1 additional game(s) against teams outside the division and loses 109.

New York currently has 0 win(s) against Washington and 0 loss(es).
New York wins 6 additional game(s) against Washington and loses 7.
New York loses the series 6 games to 7.
New York wins 1 additional game(s) against teams outside the division and loses 109.

Philadelphia currently has 0 win(s) against Washington and 0 loss(es).
Philadelphia wins 13 additional game(s) against Washington and loses 0.
Philadelphia wins the series 13 games to 0.
Philadelphia wins 0 additional game(s) against teams outside the division and loses 110.

# Atlanta Braves' magic number
# Atlanta's magic number
# Braves' magic number
# MLB Playoff Race