Atlanta Braves First-Place Eliminiation Scenario
Atlanta must win 19 more games (36 total) to avoid elimination from first place.
Here are the final standings in a scenario in which Atlanta finishes in first place with 36 wins:

Team             W	L	PCT	GB
Atlanta          36	126	0.222	0.00
Miami            35	127	0.216	1.00
Washington       35	127	0.216	1.00
New York         35	127	0.216	1.00
Philadelphia     35	127	0.216	1.00

To construct the scenario, we start with the current standings in the division:
Team             W	L	GL	PCT	GB
Atlanta          17	6	139	0.739	0.0
Philadelphia     15	10	137	0.600	3.0
New York         13	11	138	0.542	4.5
Washington       10	13	139	0.435	7.0
Miami            6	20	136	0.231	12.5

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

Atlanta currently has 5 win(s) against Miami and 1 loss(es).
Atlanta wins 2 additional game(s) against Miami and loses 5.
Atlanta wins the series 7 games to 6.
Atlanta wins 0 additional game(s) against teams outside the division and loses 99.

Atlanta currently has 1 win(s) against New York and 2 loss(es).
Atlanta wins 6 additional game(s) against New York and loses 4.
Atlanta wins the series 7 games to 6.
Atlanta wins 0 additional game(s) against teams outside the division and loses 99.

Atlanta currently has 2 win(s) against Philadelphia and 1 loss(es).
Atlanta wins 5 additional game(s) against Philadelphia and loses 5.
Atlanta wins the series 7 games to 6.
Atlanta wins 0 additional game(s) against teams outside the division and loses 99.

Atlanta currently has 0 win(s) against Washington and 0 loss(es).
Atlanta wins 6 additional game(s) against Washington and loses 7.
Atlanta loses the series 6 games to 7.
Atlanta wins 0 additional game(s) against teams outside the division and loses 99.

Miami currently has 0 win(s) against New York and 0 loss(es).
Miami wins 11 additional game(s) against New York and loses 2.
Miami wins the series 11 games to 2.
Miami wins 0 additional game(s) against teams outside the division and loses 90.

Miami currently has 0 win(s) against Philadelphia and 0 loss(es).
Miami wins 1 additional game(s) against Philadelphia and loses 12.
Miami loses the series 1 games to 12.
Miami wins 0 additional game(s) against teams outside the division and loses 90.

Miami currently has 0 win(s) against Washington and 0 loss(es).
Miami wins 12 additional game(s) against Washington and loses 1.
Miami wins the series 12 games to 1.
Miami wins 0 additional game(s) against teams outside the division and loses 90.

New York currently has 0 win(s) against Philadelphia and 0 loss(es).
New York wins 10 additional game(s) against Philadelphia and loses 3.
New York wins the series 10 games to 3.
New York wins 0 additional game(s) against teams outside the division and loses 89.

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 0 additional game(s) against teams outside the division and loses 89.

Philadelphia currently has 2 win(s) against Washington and 1 loss(es).
Philadelphia wins 0 additional game(s) against Washington and loses 10.
Philadelphia loses the series 2 games to 11.
Philadelphia wins 0 additional game(s) against teams outside the division and loses 91.

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