There is a discussion on J-Dub in another thread.
I believe J-Dub is another guy like Jaylen who doesn't have great on/off or adjusted plus minus numbers. So I thought J-Dub might make for an interesting example of a star player who has dodgy on/off and plus/minus numbers
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J-Dub's on/off for his 4 years
2025-26 = +2.1
2024-25 = -7.1
2023-24 = +1.6
2022-23 = -3.9
All over the place. So 2 solid seasons, one bad season, one very bad season. According to on/off.
https://databallr.com/stats/player/jalen-williams/1631114Jaylen's on/off for his career
2025-26 = -5.5
2024-25 = -0.2
2023-24 = -7.8
2022-23 = -3.8
2021-22 = +5.4
2020-21 = +0.6
2019-20 = -0.2
2018-19 = -3.7
2017-18 = +9.1
2016-17 = -8.6
Again, lots of volatility in Jaylen's on/off as well. Even if we just look at his past 5 years - Jaylen has 1 good year, 2 average player years, 2 bad to very bad years.
https://databallr.com/stats/player/jaylen-brown/1627759---------------
In terms of
BPMJ-Dub has had scores of 2.3, 4.0, and 2.1 his last 3 years.
Jaylen from 2020-21 onwards has had scores of 2.5, 2.1, 1.3, 0.7, 0.0, and 3.3 this year (career high). His average for that 6yr period is 1.7 BPM.
In terms of
VORPJ-Dub with 2.4, 3.4 and 1.0 this season but that is due to his lack of minutes (33 games, 28mpg). His lack of minutes hurts his VORP.
Jaylen from 2020-21 onwards has marks of 2.3, 2.2, 2.0, 1.6, 1.1, 3.3 (career high). His average is 2.6 VORP.
Quite a few similar numbers there in terms of BPM and VORP.
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J-Dub's dodgy on/off and advanced stats marks likely come down to his so-so TS%. He was 56% this year in an injury season (97+), 57% last year in his career year (99 TS+), 62.1% the year before (107 TS+). Overall, 58.9% over the last 3 years.
Also a similar problem area for Jaylen Brown. Jaylen was 99 TS+ this year, 96 TS+ last year, but a steady 100-102 TS+ the previous 4 years. An average of 100 TS+ over his last 6 years.