TransferPortl
MercerTECommitted

Jackson Kostmayer

Position coach (Mercer, 2026): Barry Brown

Biloxi, MSGraduate6'6"255 lb#14
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Estimated NIL value
$3K
Model estimate. This is not a reported contract.
Transfer Vulnerability Score
2 / 100
4th
Low risk. Percentile vs all active college players we track.
Class
Graduate
Seasons left (incl. 2026)
1-4 seasonsUnconfirmed: check the school bio

Jackson Kostmayer is a 6'6", 255-lb Graduate TE from Biloxi, MS. Jackson Kostmayer entered the transfer portal from Central Arkansas and committed to Mercer. Jackson Kostmayer has a TransferPortl Transfer Vulnerability Score of 2 out of 100, a relative risk score for entering the transfer portal.

Updated Nov 9, 2026
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Transfer Details
Central Arkansas logoCentral ArkansasTOMercer logoMercer
TVS History
Current TVS
27
Highest TVS
31
Nov 1, 2026
TVS historyThe current transfer risk score is 27 out of 100. The highest saved score is 31.050100Sep 20, 2026Nov 9, 2026
Each step is a saved weekly score; dots mark where the score changed. Hover to read any saved score. Model signals include recruiting profile, production and usage, team transfer rate, coaching changes, position, and prior transfer history. TVS is a relative risk score. It is not a literal probability.
Before past portal windows
WindowTeamTVSOutcome
2026Central Arkansas8 LowEntered portal
2025Central Arkansas1 LowDid not enter

Each score comes from a model trained only on seasons before that roster year, so it shows what TVS would have said at the time.

Market Value History
Current market value
$2,567
Highest market value
$5,269
Oct 3, 2026
Market value historyThe current estimated market value is $2,567. The highest estimated value is $5,269.$0$3K$6K2026Central ArkansasMercerNov 1, 2025Nov 9, 2026
Each step is a saved TransferPortl estimate; dots mark where the estimate changed. Hover to read any saved estimate. Team logos mark recorded team changes. Historical points use point-in-time cumulative statistics and do not use later-season production.
Transfer History
Original School
Central Arkansas logoCentral Arkansas
Transfer Portal
Central Arkansas → Mercer
Committed
Season Statistics
SeasonTeamRecRec YdsRec TD
2026Mercer5572
2025Central Arkansas4350
2026 Mercer TE Room
Samuel AlbeeTECooper BerryTENick BuggieTEKaden HansonTEReid McCollumTE
Full Mercer roster and portal moves
Most Likely to Leave Mercer
JP PicklesQB · MercerNigel GayS · MercerRonin DanglerLB · MercerEan Johnson-KelleyDL · MercerMike PolkeS · MercerKe'Vion WellingtonDL · Mercer
Likely transfers at every school
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