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Start Brock Purdy or Patrick Mahomes? Week 9

Updated Nov 4, 5:21 PM ET.

Start Brock Purdy over Patrick Mahomes

Start

Brock Purdy

QB · SF · vs LV

Market projects
22.0
fantasy pts
LV D vs QB
20.6
5th most to QBs (2026)
Upside
High
92 of 100 at QB
Snap share
98%
Through Week 7
Sit

Patrick Mahomes

QB · KC · vs NYJ

Market projects
21.2
fantasy pts
NYJ D vs QB
18.1
16th most to QBs (2026)
Upside
High
95 of 100 at QB
Snap share
100%
Through Week 8

Should I drop Patrick Mahomes for Brock Purdy?

Not on these numbers alone. Patrick Mahomes projects 157 market-implied PPR points from Week 9 through Week 17 (17.4 a game over 9 games) and Brock Purdy 161 (17.9 a game over 9 games), too close to separate, so the roster spot decides it. For Week 9 the call starts Brock Purdy over Patrick Mahomes, 22.0 to 21.2 projected PPR points.

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Our Week 9 call

Start Brock Purdy over Patrick Mahomes in Week 9.

Market-based projections have Brock Purdy at 22.0 points and Patrick Mahomes at 21.2, a gap of 0.8. That is inside the noise of a single catch, so treat it as close to a coin flip. Drafters take Brock Purdy at ADP 86 and Patrick Mahomes at 107.

What the market projects

Player markets imply 22.0 fantasy points for Brock Purdy, with 100 percent of the markets a QB needs posted.

The market-based projection for Brock Purdy is 249 passing yards, 2-3 passing touchdowns, 15 rushing yards and 0.2 rushing touchdowns (14, 14, 12 and 10 market sources).

Player markets imply 21.2 fantasy points for Patrick Mahomes, with 100 percent of the markets a QB needs posted.

The market-based projection for Patrick Mahomes is 246 passing yards, 2-3 passing touchdowns, 12 rushing yards and 0.2 rushing touchdowns (11, 12, 8 and 10 market sources).

That puts Brock Purdy 0.8 points ahead of Patrick Mahomes on the market projections.

Week 9 matchups

Brock Purdy and SF host LV on Sunday at 4:25 PM ET.

LV allowed 20.6 fantasy points a game to QBs this season over 8 games, the 5th most in the league.

Quarterbacks threw for 251 yards and 2.3 touchdowns a game against LV, with 0.8 interceptions a game.

Patrick Mahomes and KC host NYJ on Sunday at 1:00 PM ET.

NYJ allowed 18.1 fantasy points a game to QBs this season over 8 games, the 16th most in the league.

Quarterbacks threw for 208 yards and 1.8 touchdowns a game against NYJ, with 0.1 interceptions a game.

By points allowed to the position, Brock Purdy has the softer matchup.

Injury status

Brock Purdy is not on the injury report.

Patrick Mahomes is not on the injury report.

Usage before Week 9

Through Week 7, Brock Purdy played 98 percent of SF snaps, dropped back 231 times and threw an average of 7.9 air yards per attempt.

Brock Purdy, Week 4 against DEN: 66 of 66 snaps, 19 of 29 passes for 218 yards, 2 touchdowns and 0 interceptions, 8 carries for 31 yards.

Brock Purdy, Week 5 against SEA: 60 of 60 snaps, 19 of 29 passes for 189 yards, 2 touchdowns and 1 interception, 3 carries for 8 yards.

Brock Purdy, Week 6 against WAS: 62 of 62 snaps, 21 of 29 passes for 264 yards, 1 touchdown and 0 interceptions, 5 carries for 28 yards.

Brock Purdy, Week 7 against ATL: 66 of 66 snaps, 27 of 39 passes for 288 yards, 1 touchdown and 2 interceptions, 2 carries for 5 yards.

Through Week 8, Patrick Mahomes played 100 percent of KC snaps, dropped back 254 times and threw an average of 5.8 air yards per attempt.

Patrick Mahomes, Week 4 against LV: 60 of 60 snaps, 15 of 30 passes for 225 yards, 2 touchdowns and 0 interceptions, 1 carry for 1 yards.

Patrick Mahomes, Week 6 against LAC: 61 of 61 snaps, 23 of 30 passes for 272 yards, 0 touchdowns and 1 interception, 3 carries for 19 yards.

Patrick Mahomes, Week 7 against SEA: 53 of 53 snaps, 19 of 33 passes for 165 yards, 0 touchdowns and 1 interception, 2 carries for 14 yards.

Patrick Mahomes, Week 8 against DEN: 69 of 69 snaps, 30 of 41 passes for 321 yards, 3 touchdowns and 0 interceptions, 2 carries for 6 yards.

Their 2025 seasons

In 2025, Brock Purdy played 9 games for SF and scored 187.4 PPR points, 20.8 a game, finishing QB24.

He completed 197 of 284 passes for 2167 yards, 20 touchdowns and 10 interceptions, and ran 33 times for 147 yards and 3 touchdowns.

He was on the field for 98 percent of the offense's snaps in the games he played.

In 2025, Patrick Mahomes played 14 games for KC and scored 296.7 PPR points, 21.2 a game, finishing QB11.

He completed 315 of 502 passes for 3587 yards, 22 touchdowns and 11 interceptions, and ran 64 times for 422 yards and 5 touchdowns.

He was on the field for 97 percent of the offense's snaps in the games he played.

Their other Week 9 calls

Locks at kickoff, graded after. When the start/sit engine grades week 9, the call and the result appear on the public record, wrong ones included.

Drop or keep

  • Should I drop Patrick Mahomes for Brock Purdy?

    Not on these numbers alone. Patrick Mahomes projects 157 market-implied PPR points from Week 9 through Week 17 (17.4 a game over 9 games) and Brock Purdy 161 (17.9 a game over 9 games), too close to separate, so the roster spot decides it. For Week 9 the call starts Brock Purdy over Patrick Mahomes, 22.0 to 21.2 projected PPR points.

  • Should I drop Brock Purdy for Patrick Mahomes?

    Not on these numbers alone. Brock Purdy projects 161 market-implied PPR points from Week 9 through Week 17 (17.9 a game over 9 games) and Patrick Mahomes 157 (17.4 a game over 9 games), too close to separate, so the roster spot decides it. For Week 9 the call starts Brock Purdy over Patrick Mahomes, 22.0 to 21.2 projected PPR points.

Week 9 on the board

Elsewhere on the board