Seattle Mariners First-Place Clinch Scenario

Seattle's traditional magic number (relative to second-place Houston) is 26 + 112 - 28 + 1 = 111.
Seattle's first-place clinch number is 108.
Seattle must win 108 more games (136 total) to clinch first place.

If Seattle wins 108 more games, their final win total will be at least 136.
The table below shows the best case scenario for each of the other teams if Seattle wins 108 of their remaining 113 games and loses the other 5.
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 Seattle' column gives the
minimum number of games that each team will lose to Seattle if Seattle wins 108 more games. Assuming that a team wins all of its remaining games except for
the games it loses to Seattle, the resulting maximum number of wins is shown in the 'Maximum W' column.

Team             W	L	GL	Losses to Seattle	Maximum W
Houston          26	24	112	       9 - 5 = 4	134
Texas            25	26	111	       7 - 5 = 2	134
Oakland          22	29	111	       6 - 5 = 1	132
Los Angeles      24	25	113	      11 - 5 = 6	131

The table above shows that if Seattle wins 108 more games (136 total), then they will finish the season in first place in the division.

To see that Seattle's first-place clinch number cannot be less than 108, consider the following scenario in which Seattle wins 107 more games (135 total) but does not finish in first place:

Team             W	L	PCT	GB
Texas            135	27	0.833	0.00
Seattle          135	27	0.833	0.00
Houston          97	65	0.599	38.00
Los Angeles      68	94	0.420	67.00
Oakland          52	110	0.321	83.00

Tie breakers
Texas wins the season series with Seattle 7 games to 6.

To construct the scenario, we start with the current standings in the division:
Team             W	L	GL	PCT	GB
Seattle          28	21	113	0.571	0.0
Houston          26	24	112	0.520	2.5
Texas            25	26	111	0.490	4.0
Los Angeles      24	25	113	0.490	4.0
Oakland          22	29	111	0.431	7.0

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


Houston currently has 2 wins against Los Angeles and 1 losses.
  Houston wins 10 additional games against Los Angeles and loses 0.
  Houston wins the series 12 games to 1

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

Los Angeles currently has 4 wins against Oakland and 0 losses.
  Los Angeles wins 7 additional games against Oakland and loses 2.
  Los Angeles wins the series 11 games to 2

Seattle currently has 2 wins against Houston and 2 losses.
  Seattle wins 9 additional games against Houston and loses 0.
  Seattle wins the series 11 games to 2

Seattle currently has 2 wins against Los Angeles and 0 losses.
  Seattle wins 11 additional games against Los Angeles and loses 0.
  Seattle wins the series 13 games to 0

Seattle currently has 4 wins against Oakland and 3 losses.
  Seattle wins 6 additional games against Oakland and loses 0.
  Seattle wins the series 10 games to 3

Texas currently has 2 wins against Houston and 2 losses.
  Texas wins 9 additional games against Houston and loses 0.
  Texas wins the series 11 games to 2

Texas currently has 3 wins against Los Angeles and 0 losses.
  Texas wins 10 additional games against Los Angeles and loses 0.
  Texas wins the series 13 games to 0

Texas currently has 2 wins against Oakland and 5 losses.
  Texas wins 6 additional games against Oakland and loses 0.
  Texas wins the series 8 games to 5

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

Houston wins 51 games agains teams outside the division and loses 20.
Los Angeles wins 37 games agains teams outside the division and loses 36.
Oakland wins 25 games agains teams outside the division and loses 52.
Seattle wins 80 games agains teams outside the division and loses 0.
Texas wins 79 games agains teams outside the division and loses 0.

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