American Football (NCAA) vs Canadian Football (CFL) — Same Game, Different Rules
Same sport, different leagues. See exactly where NCAA and CFL rules diverge.
| Attribute | American Football (NCAA) | Canadian Football (CFL) |
|---|---|---|
| Category | Team Sports | Team Sports |
| Organization | NCAA | CFL |
| Players | 11 | 10–15 |
| Location | both | both |
| Season / Version | NCAA Football Rules 2025-26 (current academic-year edition) | CFL 2025 Rule Book (PDF at static.cfl.ca/wp-content/uploads/2025_Rule-Book.pdf; 2026 in-season rule changes: rouge modifications; 2027 changes: goalposts to back of end zone, field re-sized) |
| Verification | 🏛️Official — NCAA | 🏛️Official — CFL |
Comparison Summary
American Football (NCAA) and Canadian Football (CFL) share 14 rule topics. All 14 have different rules.
Key differences in: Common Penalties, Concussion Protocol, Goal Posts, Hash Marks, Point Values and 9 more.
These sports also have different player counts.
Shared Rules — Side by Side(14 shared topics)
Common Penalties
Rules differFalse start: 5 yards — same as NFL; Offside / Encroachment: 5 yards — same as NFL; Holding (offensive): 10 yards from the spot — same as NFL
Offside: 5 yards — same as NFL; Procedure (false start): 5 yards — same as NFL; Holding (offensive): 10 yards — same as NFL
Concussion Protocol
Rules differThe NCAA has some of the strictest concussion protocols in football: Mandatory removal: Any player exhibiting signs of a concussion must be immediately removed from the game; Same-day return prohibited: A player diagnosed with a concussion may not return to play on the same day, even if cleared —...
Independent spotter: The CFL employs independent medical spotters who can stop play to evaluate any player suspected of having a concussion; Removal requirement: Any player identified with concussion symptoms is immediately removed from the game; Return to play: A player diagnosed with a concussi...
Goal Posts
Rules differWidth: 18 feet 6 inches between the uprights — same as NFL; Height: Crossbar at 10 feet, uprights extend at least 30 feet above the crossbar; Location: Centered on the end line at the back of the end zone — same as NFL (goal posts were moved from the goal line to the end line in 1927 in college)
Location: On the goal line, not at the back of the end zone. The NFL moved goal posts to the end line in 1974; the CFL kept them on the goal line.; Width: 18 feet 6 inches between the uprights — same as NFL; Crossbar height: 10 feet — same as NFL
Hash Marks
Rules differThis is a significant difference from the NFL that affects offensive strategy: NCAA: Hash marks are 40 feet (13.33 yards) from each sideline — positioned at the edge of the field numbers; NFL: Hash marks are 70 feet 9 inches (23.58 yards) from each sideline — much closer to center; Impact: The wi...
Width: 51 feet apart (17 yards from each sideline) — wider than both NFL (23.58 yards from sideline) and NCAA (13.33 yards from sideline); Impact: The wider hashes create even more "short field" than NCAA and affect play design
Point Values
Rules differTouchdown: 6 points — same as NFL; Point after touchdown (PAT): 1 point, attempted from the 3-yard line (NFL uses the 15-yard line since 2015). This makes PATs nearly automatic in college but a meaningful challenge in the NFL.; Two-point conversion: 2 points, attempted from the 3-yard line — same...
Touchdown: 6 points — same as NFL/NCAA; Convert (PAT): 1 point for a kick from the 32-yard line (NFL kicks from the 15-yard line, NCAA from the 3-yard line). The CFL's longer PAT distance makes it a more meaningful play.; Two-point conversion: 2 points, from the 3-yard line — same as NFL/NCAA
Section 2: Equipment
Rules differOfficial ball: Wilson GST (same manufacturer as NFL's "The Duke"); Dimensions: Long axis 10.875 to 11.4375 inches, short circumference 20.75 to 21.25 inches — same specifications as the NFL ball; Weight: 14 to 15 ounces
The CFL ball is slightly different from the NFL ball: Size: Slightly larger circumference than the NFL ball — the CFL ball has a slightly more pronounced pointed shape; White stripes: Like the NCAA ball, the CFL ball features white stripes on each end for visibility, especially at night games. Th...
Section 3: Playing Area
Rules differThis is a significant difference from the NFL that affects offensive strategy: Length: 100 yards (300 feet / 91.44 meters) between end zones — same as NFL; Width: 53⅓ yards (160 feet / 48.77 meters) — same as NFL; End zones: 10 yards deep at each end — same as NFL
The CFL field is the largest playing surface in professional gridiron football: Length: 110 yards (100.58 meters) between goal lines — 10 yards longer than NFL/NCAA; Width: 65 yards (59.44 meters) — nearly 12 yards wider than NFL/NCAA's 53⅓ yards; End zones: 20 yards deep — TWICE as deep as NFL/N...
Section 4: Players & Officials
Rules differNCAA uses the same positions as the NFL: quarterback, running backs, wide receivers, tight ends, offensive linemen (center, guards, tackles), defensive linemen, linebackers, cornerbacks, safeties, and special teams specialists. Number restrictions...
This is one of the most fundamental differences from American football: On the field: 12 players per side — one more than NFL/NCAA's 11; Extra player: Typically an additional defensive back or slotback/receiver. The wider field demands more coverage.; Roster: 46-player active roster, plus a pract...
Section 5: Rules of Play
Rules differThe most significant rule difference affecting game pace: Quarters: 4 × 15 minutes — same as NFL; Halftime: 20 minutes (can be shortened by mutual agreement). NFL halftime is 12 minutes (longer for Super Bowl).; Between quarters: Teams switch ends with a 1-minute interval
Canadian football uses 3 downs to advance 10 yards, compared to 4 downs in American football.
Section 6: Scoring
Rules differIf the defense intercepts or recovers a fumble during a PAT or two-point attempt and returns it to the opposing end zone, the defensive team scores 2 points. The NFL also awards 2 points for this (since 2015).
The rouge or single point is one of the most distinctive features of Canadian football: Touchdown: 6 points — same as NFL/NCAA; Convert (PAT): 1 point for a kick from the 32-yard line (NFL kicks from the 15-yard line, NCAA from the 3-yard line). The CFL's longer PAT distance makes it a more meani...
Section 7: Violations & Penalties
Rules differThe targeting rule is one of the most significant differences between NCAA and NFL football: Definition: A player who leads with the crown of the helmet to make forcible contact to the head or neck area of a defenseless opponent, or who launches and makes forcible contact to the head or neck area...
Offside: 5 yards — same as NFL; Procedure (false start): 5 yards — same as NFL; Holding (offensive): 10 yards — same as NFL
Section 8: Safety Considerations
Rules differThe NCAA has some of the strictest concussion protocols in football: Mandatory removal: Any player exhibiting signs of a concussion must be immediately removed from the game; Same-day return prohibited: A player diagnosed with a concussion may not return to play on the same day, even if cleared —...
The CFL season extends into late November, when Canadian weather conditions can be extreme: Independent spotter: The CFL employs independent medical spotters who can stop play to evaluate any player suspected of having a concussion; Removal requirement: Any player identified with concussion sympt...
The Football
Rules differOfficial ball: Wilson GST (same manufacturer as NFL's "The Duke"); Dimensions: Long axis 10.875 to 11.4375 inches, short circumference 20.75 to 21.25 inches — same specifications as the NFL ball; Weight: 14 to 15 ounces
The CFL ball is slightly different from the NFL ball: Size: Slightly larger circumference than the NFL ball — the CFL ball has a slightly more pronounced pointed shape; White stripes: Like the NCAA ball, the CFL ball features white stripes on each end for visibility, especially at night games. Th...
Uniforms
Rules differJersey numbers: Offensive linemen must wear 50-79 (or 90-99 with a report to the referee). Since 2021, other positions have more flexibility. Previously, specific number ranges were assigned to each position group.; Jersey: Must be tucked into the pants; cannot hang below the waist; Home team: Tr...
Jersey numbers: 1-99, with traditional position ranges similar to NFL; Home team: Wears dark jerseys (same convention as NFL); Player names: Required on the back of jerseys
Permanent link: https://opensourcesports.io/rules/versus/american-football-ncaa-vs-canadian-football-cfl