New York Mets First-Place Elimination Scenario
New York must win 28 more games (35 total) to avoid elimination from first place.
Here are the final standings in a scenario in which New York finishes in first place with 35 wins:

Team             W	L	PCT	GB
New York         35	127	0.216	0.00
Philadelphia     35	127	0.216	0.00
Atlanta          34	128	0.210	1.00
Miami            34	128	0.210	1.00
Washington       34	128	0.210	1.00

Tie breakers
New York wins the series with Philadelphia 12 games to 1

To construct the scenario, we start with the current standings in the division:
Team             W	L	GL	PCT	GB
Atlanta          16	8	138	0.667	0.0
Miami            11	13	138	0.458	5.0
Washington       11	13	138	0.458	5.0
Philadelphia     8	15	139	0.348	7.5
New York         7	16	139	0.304	8.5

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

Atlanta currently has 2 win(s) against Miami and 1 loss(es).
Atlanta wins 10 additional game(s) against Miami and loses 0.
Atlanta wins the series 12 games to 1.
Atlanta wins 0 additional game(s) against teams outside the division and loses 94.

Atlanta currently has 0 win(s) against New York and 0 loss(es).
Atlanta wins 3 additional game(s) against New York and loses 10.
Atlanta loses the series 3 games to 10.
Atlanta wins 0 additional game(s) against teams outside the division and loses 94.

Atlanta currently has 3 win(s) against Philadelphia and 0 loss(es).
Atlanta wins 0 additional game(s) against Philadelphia and loses 10.
Atlanta loses the series 3 games to 10.
Atlanta wins 0 additional game(s) against teams outside the division and loses 94.

Atlanta currently has 1 win(s) against Washington and 1 loss(es).
Atlanta wins 5 additional game(s) against Washington and loses 6.
Atlanta loses the series 6 games to 7.
Atlanta wins 0 additional game(s) against teams outside the division and loses 94.

Miami currently has 0 win(s) against New York and 0 loss(es).
Miami wins 13 additional game(s) against New York and loses 0.
Miami wins the series 13 games to 0.
Miami wins 0 additional game(s) against teams outside the division and loses 89.

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 89.

Miami currently has 0 win(s) against Washington and 0 loss(es).
Miami wins 9 additional game(s) against Washington and loses 4.
Miami wins the series 9 games to 4.
Miami wins 0 additional game(s) against teams outside the division and loses 89.

New York currently has 0 win(s) against Philadelphia and 0 loss(es).
New York wins 12 additional game(s) against Philadelphia and loses 1.
New York wins the series 12 games to 1.
New York wins 0 additional game(s) against teams outside the division and loses 87.

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 87.

Philadelphia currently has 2 win(s) against Washington and 1 loss(es).
Philadelphia wins 4 additional game(s) against Washington and loses 6.
Philadelphia loses the series 6 games to 7.
Philadelphia wins 0 additional game(s) against teams outside the division and loses 93.

# New York Mets' magic number
# New York's magic number
# Mets' magic number
# MLB Playoff Race