Oakland Athletics First-Place Clinch Scenario

Oakland's traditional magic number (relative to first-place Seattle) is 17 + 131 - 15 + 1 = 134.
Oakland's first-place clinch number is 126.
Oakland must win 126 more games (141 total) to clinch first place.

If Oakland wins 126 more games, their final win total will be at least 141.
The table below shows the best case scenario for each of the other teams if Oakland wins 126 of their remaining 130 games and loses the other 4.
For each team, the table shows the current record (number of wins (W) and losses (L)) and the number of games that team has
left to play (GL) in the regular season. Taking the schedule of games left to play into account, the 'Losses to Oakland' column gives the
minimum number of games that each team will lose to Oakland if Oakland wins 126 more games. Assuming that a team wins all of its remaining games except for
the games it loses to Oakland, the resulting maximum number of wins is shown in the 'Maximum W' column.

Team             W	L	GL	Losses to Oakland	Maximum W
Texas            16	15	131	      10 - 4 = 6	141 *See tie-breaking notes below.
Seattle          17	14	131	      13 - 4 = 9	139
Houston          10	20	132	      13 - 4 = 9	133
Los Angeles      11	20	131	      13 - 4 = 9	133

Tie-breakers:
Oakland has won 2 game(s) against Texas and lost 1.
There are 10 games left in the series.
In the scenario above, Oakland wins 2 + 6 = 8 games against Texas and loses 1 + 4 = 5.

The table above shows that if Oakland wins 126 more games (141 total), then they will finish the season in first place in the division.

To see that Oakland's first-place clinch number cannot be less than 126, consider the following scenario in which Oakland wins 125 more games (140 total) but does not finish in first place:

Team             W	L	PCT	GB
Texas            141	21	0.870	0.00
Oakland          140	22	0.864	1.00
Seattle          109	53	0.673	32.00
Los Angeles      101	61	0.623	40.00
Houston          100	62	0.617	41.00

To construct the scenario, we start with the current standings in the division:
Team             W	L	GL	PCT	GB
Seattle          17	14	131	0.548	0.0
Texas            16	15	131	0.516	1.0
Oakland          15	17	130	0.469	2.5
Los Angeles      11	20	131	0.355	6.0
Houston          10	20	132	0.333	6.5

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


Houston currently has 0 wins against Seattle and 0 losses.
  Houston wins 7 additional games against Seattle and loses 6.
  Houston wins the series 7 games to 6

Los Angeles currently has 0 wins against Houston and 0 losses.
  Los Angeles wins 10 additional games against Houston and loses 3.
  Los Angeles wins the series 10 games to 3

Los Angeles currently has 0 wins against Seattle and 0 losses.
  Los Angeles wins 7 additional games against Seattle and loses 6.
  Los Angeles wins the series 7 games to 6

Oakland currently has 0 wins against Houston and 0 losses.
  Oakland wins 13 additional games against Houston and loses 0.
  Oakland wins the series 13 games to 0

Oakland currently has 0 wins against Los Angeles and 0 losses.
  Oakland wins 13 additional games against Los Angeles and loses 0.
  Oakland wins the series 13 games to 0

Oakland currently has 0 wins against Seattle and 0 losses.
  Oakland wins 13 additional games against Seattle and loses 0.
  Oakland wins the series 13 games to 0

Oakland currently has 2 wins against Texas and 1 losses.
  Oakland wins 5 additional games against Texas and loses 5.
  Oakland wins the series 7 games to 6

Texas currently has 3 wins against Houston and 4 losses.
  Texas wins 6 additional games against Houston and loses 0.
  Texas wins the series 9 games to 4

Texas currently has 0 wins against Los Angeles and 0 losses.
  Texas wins 13 additional games against Los Angeles and loses 0.
  Texas wins the series 13 games to 0

Texas currently has 1 wins against Seattle and 2 losses.
  Texas wins 10 additional games against Seattle and loses 0.
  Texas wins the series 11 games to 2

Houston wins 80 games agains teams outside the division and loses 7.
Los Angeles wins 73 games agains teams outside the division and loses 6.
Oakland wins 81 games agains teams outside the division and loses 0.
Seattle wins 80 games agains teams outside the division and loses 2.
Texas wins 91 games agains teams outside the division and loses 1.

Combining the current standings with the wins and losses from the scenario results in the final standings listed above.
# Oakland Athletics' magic number
# Oakland's magic number
# Athletics' magic number
# MLB Playoff Race