The Sideline NIL ReportMassachusetts Men's Basketball
Massachusetts sideline stock
Rollie Castineyra
G · Sophomore · #44 · 6' 2" · 187 lbs
From Marblehead, MA
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Sideline market estimate
$56.5K
Massachusetts sideline stock
Rollie Castineyra
G · Sophomore · #44 · 6' 2" · 187 lbs
From Marblehead, MA
Loading live player file…
Sideline market estimate
$56.5K
Massachusetts sideline stock
G · Sophomore · #44 · 6' 2" · 187 lbs
From Marblehead, MA
Live player file
Latest source check Aug 15, 2026
Position
Guard
Class
Sophomore
Jersey
#44
Height
6' 2"
Weight
187 lbs
Hometown
Sideline market estimate
$56.5K
Best current Sideline estimate based on role, roster, recruiting, current market evidence, and school-pool reconciliation.
Confidence meter
Watchlist confidenceWe have enough context to frame the range, but not enough sourced detail to call it tight.
Rollie Castineyra is a 6' 2" 187 lbs Sophomore Guard for Massachusetts and is listed by ESPN from Marblehead, MA. The Sideline places the player 10th within the current Massachusetts men's basketball roster. The $56.5K headline is The Sideline's best current estimate and $56.5K is the allocation used to reconcile the sport pool.
Pool share by sport
2.4%
Men's Basketball pool: $2.35M
Pool share of school
0.8%
Massachusetts roster market: $6.85M
Roster dollars tracked
$2.35M
Massachusetts Men's Basketball pool-accounting sum
Coverage hits
0
No fresh NIL chatter found
Marblehead, MA
Roster status
Active
Current listing
Massachusetts Minutemen
Sideline Data Desk
Lead guards receive a premium for possession control, scoring creation, and year-round visibility in the transfer and commercial markets. For Rollie Castineyra, the current roster role, class, recruiting signal, program market, and available market evidence produce a $56.5K headline case.
The visible base estimate is $56.5K. The pool-accounting allocation is $56.5K, equal to about 2.4% of the Massachusetts men's basketball market. The player ranks 10th on that roster.
School NIL Page
Massachusetts NIL
Full school breakdown, roster search, market tiers, and position-by-position comps.
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Other Massachusetts G estimates.
