Mercury vs. Fire: Betting Trends, Odds, Records Against the Spread, Predictions - Sept. 17

The Portland Fire (16-24) will host the Phoenix Mercury (14-26) after losing three home games in a row. It starts at 10 p.m. ET on Thursday, September 17, 2026.

Phoenix enters this matchup following a 101-69 win against Toronto. The Mercury's leading scorer was Shay Ciezki, who wound up with 15 points, five assists and two blocks.

Portland lost to Golden State 86-69 at home in its last game. Its top performers were Emily Engstler (12 PTS, 2 STL, 66.7 FG%, 2-4 from 3PT) and Megan Gustafson (12 PTS, 60 FG%).

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Mercury vs. Fire Betting Lines

Take a look below at the most recent betting lines for the Mercury-Fire matchup.

• Favorite: Mercury (-1.5)
• Total: 175.5
• Mercury Moneyline: -118
• Fire Moneyline: -104

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Mercury Betting Insights

• Based on this matchup's moneyline, the Mercury's implied win probability is 54.1%.
• Phoenix has been a moneyline favorite 15 times this season. They've finished 7-8 in those games.
• The Mercury have compiled a 17-23-0 ATS record so far this year.
• Phoenix and its opponents have gone over 175.5 combined points in 15 of 40 games this season.
• The average total in Mercury matchups this year is 170.2, 5.3 fewer points than this game's over/under.

Fire Betting Insights

• The sportsbooks' moneyline implies a 51.0% chance of a victory for the Fire.
• Portland has been the underdog in 32 games this season and won 12 (37.5%) of those contests.
• The Fire are 20-20-0 ATS this season.
• Portland's games this season have had a combined scoring total higher than 175.5 points in 22 of 40 outings.
• The Fire have had an average of 173.1 points scored in their games so far this season, 2.4 points fewer than this game's over/under.

Key Stats for Mercury vs. Fire

• Phoenix records 6.9 fewer points per game (84.2) than Portland allows (91.1).
• The Mercury have a 6-3 record when scoring more than 91.1 points.
• So far in 2026, Phoenix's offense has been better at home, where it scores 85.8 points per game, compared to road games, where it records 82.6 per game. Defensively, it has been slightly worse at home, where it allows 87.8 points per game, versus road games, where it allows opponents to average 86.8 per game.
• Portland's 86.6 points per game are just 0.7 fewer points than the 87.3 Phoenix allows.
• The Fire have put together a 9-8 record in games when they've scored more than 87.3 points.
• Portland averages more points per game at home (87.3) than away (85.9), and allows the same number at home as away (91.1).

All Media on this page by Associated Press.