Jaylen Brown
BOS · 2025-26Franchise engineHigh evidenceWhat does Jaylen Brown actually supply on the floor?
Jaylen Brown's strongest evidenced functions are creation, passing, rim pressure; the weakest available areas are event creation, rim protection, interior finishing. The profile is tied to BOS for 2025-26.
Function profile
2025-26 — eleven separate readings on a league scale. They are not additive.* limited evidence for that function. A dash means the evidence was insufficient — not a zero. Use the separate function strengths to evaluate role and roster fit; do not treat them as one player-value score. POA or switch conclusions require lineup, matchup, and assignment evidence beyond this profile.
Season by season
Every governed season profile on record.| Season | Team | Role | Evidence | Creation | Rim pressure | Shooting | Passing | Screening | Interior finish | Point of attack | Switch coverage | Rim protection | Event creation | Rebounding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-26 | BOS | Franchise engine | High evidence | 85 | 61 | 52 | 78 | — | 52 | — | — | 44 | 41 | 52 |
| 2024-25 | BOS | — | High evidence | 70 | 67 | 44 | 71 | 44 | 59 | 44 | 47 | 43 | 49 | 53 |
| 2023-24 | BOS | — | High evidence | 69 | 66 | 54 | 66 | — | 64 | 56 | 61 | 54 | 61 | 46 |
| 2022-23 | BOS | — | High evidence | 64 | 68 | 49 | 58 | 42 | 56 | 42 | 36 | 47 | 52 | 50 |
| 2021-22 | BOS | — | High evidence | 66 | 69 | 65 | 67 | 45 | 66 | 45 | 42 | 51 | 54 | 45 |
| 2020-21 | BOS | — | High evidence | 61 | 64 | 67 | 64 | 43 | 59 | 43 | 50 | 53 | 60 | 45 |
| 2019-20 | BOS | — | High evidence | 51 | 68 | 69 | 47 | — | 76 | — | — | 45 | 56 | 40 |
| 2018-19 | BOS | — | High evidence | 45 | 61 | 53 | 43 | — | 65 | — | — | 51 | 64 | 39 |
| 2017-18 | BOS | — | High evidence | 48 | 60 | 70 | 46 | — | 63 | — | — | 44 | 54 | 55 |
| 2016-17 | BOS | — | High evidence | 37 | 61 | 51 | 34 | — | 67 | — | — | 51 | 44 | 61 |
What teams depended on him for
Seasons where a team's situation report named him a dependency case.BOS did not have a sufficiently supported observed replacement lineup for Jaylen Brown. The database keeps the functional-loss evidence but does not invent a replacement plan.
Replacement evidence
No replacement lineup is supported by the available evidence.
on floor 4693 possessions · off floor 2642 possessions
BOS had a supported lineup path without Jaylen Brown: [Al Horford, Jayson Tatum, Luke Kornet, Payton Pritchard, Sam Hauser] at 4.2 adjusted net points per 100 possessions over 225 possessions. This is an observed option, not proof it is universally better.
Replacement evidence
Al Horford · Jayson Tatum · Luke Kornet · Payton Pritchard · Sam Hauser
shrunk net 4.1880 over 225 possessions
on floor 4622 possessions · off floor 3381 possessions
BOS had a supported lineup path without Jaylen Brown: [Al Horford, Jrue Holiday, Jayson Tatum, Payton Pritchard, Sam Hauser] at 6.9 adjusted net points per 100 possessions over 261 possessions. This is an observed option, not proof it is universally better.
Replacement evidence
Al Horford · Jrue Holiday · Jayson Tatum · Payton Pritchard · Sam Hauser
shrunk net 6.9380 over 261 possessions
on floor 5549 possessions · off floor 3217 possessions
BOS did not have a sufficiently supported observed replacement lineup for Jaylen Brown. The database keeps the functional-loss evidence but does not invent a replacement plan.
Replacement evidence
No replacement lineup is supported by the available evidence.
on floor 5735 possessions · off floor 3262 possessions
BOS did not have enough reliable function-loss evidence to judge dependence on Jaylen Brown.
Replacement evidence
Al Horford · Dennis Schroder · Marcus Smart · Jayson Tatum · Grant Williams
shrunk net 5.0320 over 164 possessions
on floor 5536 possessions · off floor 3535 possessions
BOS had an observed replacement lineup for Jaylen Brown, but it came with a performance cost. The supported alternative was [Tristan Thompson, Kemba Walker, Evan Fournier, Marcus Smart, Jayson Tatum] at -2.3 adjusted net points per 100 possessions over 160 possessions.
Replacement evidence
Tristan Thompson · Kemba Walker · Evan Fournier · Marcus Smart · Jayson Tatum
shrunk net -2.3390 over 160 possessions
on floor 3612 possessions · off floor 3116 possessions
BOS did not have strong functional backup for Jaylen Brown in interior finish; removing him cost about 26.2% of the team's production in that area. The next observed option was Daniel Theis.
Replacement evidence
Gordon Hayward · Kemba Walker · Marcus Smart · Jayson Tatum · Daniel Theis
shrunk net 4.8720 over 340 possessions
on floor 4500 possessions · off floor 3086 possessions
BOS had a supported lineup path without Jaylen Brown: [Al Horford, Kyrie Irving, Marcus Morris Sr., Marcus Smart, Jayson Tatum] at 4.4 adjusted net points per 100 possessions over 984 possessions. This is an observed option, not proof it is universally better.
Replacement evidence
Al Horford · Kyrie Irving · Marcus Morris Sr. · Marcus Smart · Jayson Tatum
shrunk net 4.4220 over 984 possessions
on floor 4082 possessions · off floor 4051 possessions
BOS did not have a sufficiently supported observed replacement lineup for Jaylen Brown. The database keeps the functional-loss evidence but does not invent a replacement plan.
Replacement evidence
No replacement lineup is supported by the available evidence.
on floor 4846 possessions · off floor 3752 possessions
BOS had a supported lineup path without Jaylen Brown: [Amir Johnson, Al Horford, Isaiah Thomas, Jae Crowder, Marcus Smart] at 7.1 adjusted net points per 100 possessions over 333 possessions. This is an observed option, not proof it is universally better.
Replacement evidence
Amir Johnson · Al Horford · Isaiah Thomas · Jae Crowder · Marcus Smart
shrunk net 7.0980 over 333 possessions
on floor 2755 possessions · off floor 5842 possessions
Known contract calendar
Governed contract events naming this player — dates carry their honest quality.Jaylen Brown has a reported contract-control horizon through the 2029 season. The June 30 date is a season-boundary planning proxy, not proof of exact free-agency status. No extension-review trigger is applied yet.
Jaylen Brown has a reported contract-control horizon through the 2024 season. The June 30 date is a season-boundary planning proxy, not proof of exact free-agency status. The player is inside the two-season extension-review horizon, but exact eligibility and value are not certified.
Jaylen Brown has a reported contract-control horizon through the 2024 season. The June 30 date is a season-boundary planning proxy, not proof of exact free-agency status. The player is inside the two-season extension-review horizon, but exact eligibility and value are not certified.
Jaylen Brown has a reported contract-control horizon through the 2024 season. The June 30 date is a season-boundary planning proxy, not proof of exact free-agency status. The player is inside the two-season extension-review horizon, but exact eligibility and value are not certified.
Jaylen Brown has a reported contract-control horizon through the 2024 season. The June 30 date is a season-boundary planning proxy, not proof of exact free-agency status. No extension-review trigger is applied yet.
Jaylen Brown has a reported contract-control horizon through the 2020 season. The June 30 date is a season-boundary planning proxy, not proof of exact free-agency status. The player is inside the two-season extension-review horizon, but exact eligibility and value are not certified.
Jaylen Brown has a reported contract-control horizon through the 2020 season. The June 30 date is a season-boundary planning proxy, not proof of exact free-agency status. The player is inside the two-season extension-review horizon, but exact eligibility and value are not certified.
Jaylen Brown has a reported contract-control horizon through the 2020 season. The June 30 date is a season-boundary planning proxy, not proof of exact free-agency status. The player is inside the two-season extension-review horizon, but exact eligibility and value are not certified.
Jaylen Brown has a reported contract-control horizon through the 2020 season. The June 30 date is a season-boundary planning proxy, not proof of exact free-agency status. No extension-review trigger is applied yet.
Function scores, roles, dependence records and contract events are separate evidence. No combined player value, trade value or ranking is computed from them, and none of them is a causal impact claim.