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College Football
NCAA FBS Hub
2026 Season & Measurements
Draft Simulator Stats
No scouting note for Kalvin Janssen yet — see the full profile for stats and stock.
One of PFF's consistently highest-rated players in the Buckeyes' scouted games. "SAIR-uh-veld" will likely be a swing guard in the pros. Strength, power, and finesse in blocking are his trademark strengths. Siereveld has been free from injury since becoming a starter, and has practiced at LG, LT, RG, and RT in spring drills. Siereveld helped Ohio State's offense rank 7th nationally in fewest TFLs allowed per game (3.75) and 10th in fewest sacks allowed per game (1.0) --despite having played No. 7 Tennessee, No. 1 Oregon, No. 3 Texas, and No. 5 Notre Dame.
Put any two prospects head-to-head — a 2027 NFL Draft hopeful or anyone on a 2026 NCAA roster — and Fanspeak stacks their position-relevant stats and Draft Simulator signals in one view.
Choose any two players from the 2027 NFL Draft class or the 2026 NCAA roster — search by name or tap a suggestion. Pick one and the other slot narrows to the same position so the matchup stays like-for-like.
Their measurements and 2026 college production line up side-by-side — only the stats that matter for the position, with the winner of each row checked.
Weigh the community's read: Fanspeak Consensus rank, position rank, ADP, mock-draft volume, hype, and the NFL team each prospect gets drafted to most.
Kalvin Janssen and Austin Siereveld are compared here on Fanspeak's 2027 NFL Draft data — body measurements, position-relevant college production, the community consensus big board, average draft position across thousands of mock drafts, and how often each prospect shows up in those mocks. Rather than one scout's take, the matchup reflects where the draft community as a whole values each player.
Consensus rank is the cleanest single signal: a lower number means the crowd boards the prospect earlier. ADP layers in mock-draft behavior, and mock-draft volume tells you which prospect the community is paying attention to. The stat comparison checks the winner of each metric.
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