Why choose Speedgoat 5?Buy Speedgoat 5 if
+0.8 Traction & Grip+0.8 Traction & Grip: Higher-traction compound for wet roads and fast corners.
Head-to-Head Comparison·Lab Telemetry
HOKA · Trail
Speedgoat 5
81
Stack33mm
Weight292g
Drop4mm
Nike · Trail
WINNER
Ultrafly
82
Stack38.5mm
Weight300g
Drop8.5mm
Key Differences & Advantages
Why choose Ultrafly?Buy Ultrafly if
+0.8 Upper Comfort & Lockdown+0.8 Upper Comfort & Fit: More secure midfoot lockdown and step-in comfort.
The Runner's Pick
Final Decision: Who Buys Which Model?
Side-by-side selection criteria grounded in verified mechanical specs
HOKA
Speedgoat 5
81
Choose the Speedgoat 5 if:
Choose the Speedgoat 5 if your priority is tenacious rubber bite across slick pavement and wet turns powered by Compression-molded EVA (reworked slab) (292g). It is the better match for runners targeting all-weather grip and confident cornering on slick streets over the Ultrafly's focus on high-mileage protection and low-impact recovery cruising.
4mm drop · 292g · $155Audit
Nike
Ultrafly
82
Choose the Ultrafly if:
Choose the Ultrafly if your priority is plush step-in collar padding and irritation-free lockdown powered by ZoomX foam in a fabric-wrapped midsole paired with a carbon plate (300g). It is the better match for runners targeting friction-free blister prevention across long endurance sessions over the Speedgoat 5's focus on all-weather grip and confident cornering on slick streets.
8.5mm drop · 300g · $250Audit
Dealbreaker Warnings · Who Should Skip These
Critical biomechanical trade-offs to avoid buying the wrong shoe
HOKA Speedgoat 5
Skip Speedgoat 5 if your mileage includes paved asphalt or concrete; aggressive 5mm lugs wear rapidly on hard surfaces and cause harsh ground shock.
Nike Ultrafly
Skip Ultrafly if you want a featherweight speed-day shoe; at 300g, it is calibrated for workhorse longevity rather than race pace.
8-Axis Telemetry Radar
Ultrafly leads by +1.0 PTS
Speedgoat81vsUltrafly82
Tap any axis node to inspect wear-test citations
🔬 Inspect Granular Lab Specs & Fit Telemetry▼
Fit & Sizing Consensus
Real-world wear-test consensus across runner foot profiles
Speedgoat 5
Ultrafly
Sizing LengthSizing differs
Runs Small
Speedgoat64%
True to Size
Ultrafly80%
Runs Large
Speedgoat 5: Runs small — consider 0.5 size up(n=22)
Ultrafly: True to size(n=28)
Toe Box WidthMatch
Performance Tight
Standard
Speedgoat52%Ultrafly72%
Wide
Speedgoat 5: Standard width(n=18)
Ultrafly: Standard width(n=24)
Arch SupportSizing differs
Flat / Low
Speedgoat61%
Neutral Stability
Ultrafly66%
High Arch
Speedgoat 5: Flat / low arch(n=15)
Ultrafly: Neutral stability / moderate arch(n=18)
| RADAR AXIS | Speedgoat 5 | Ultrafly | Δ DELTA | COHORT RANK |
|---|---|---|---|---|
| Cushioning & Softness | 8.4 | 9.0 | −0.6 (Ultrafly higher by NaN) | #4/28 |
| Energy Return & Bounce | 6.8 | 7.4 | −0.6 (Ultrafly higher by NaN) | #4/28 |
| Weight Efficiency | 6.5 | 7.0 | −0.5 (Ultrafly higher by NaN) | #4/28 |
| Stability & Support | 8.1 | 8.1 | 0.0 (dead even) | #4/28 |
| Traction & Grip | 9.7 | 8.9 | +0.8 (Speedgoat 5 higher by 0.8) | #4/28 |
| Upper Comfort & Lockdown | 7.6 | 8.4 | −0.8 (Ultrafly higher by NaN) | #4/28 |
| Breathability | 7.3 | 7.6 | −0.3 (Ultrafly higher by NaN) | #4/28 |
| Durability | 8.2 | 7.9 | +0.3 (Speedgoat 5 higher by 0.3) | #4/28 |
| Meta-Score | 81contender | 82strong | −1.0 | Calibrated |
The Record · Specification Telemetry
Cohort-relative percentiles and verified technical specs
Speedgoat 5
Ultrafly
Weight (US Men's 9)Lighter than 63% of daily trainers
Speedgoat 5292g
Ultrafly300g
›HOKA Speedgoat 5 saves 8g per stride, noticeable after mile 6 of continuous running.
Heel Cushion StackMore underfoot foam than 50% of trainers
Speedgoat 533.0mm
Ultrafly38.5mm
›Nike Ultrafly delivers 5.5mm more vibration isolation for long recovery efforts than Speedgoat 5.
Heel-to-Toe DropΔ 4.5mm
Speedgoat 54.0mm
Ultrafly8.5mm
›Ultrafly's 8.5mm drop shifts load toward the knees/quads, while Speedgoat 5's 4mm drop engages the Achilles and calves.
Midsole Foam & Energy ReturnHigher rebound than 75% of tested foams
Compression-molded EVA (reworked slab)6.8/10
ZoomX foam in a fabric-wrapped midsole7.4/10
›ZoomX foam in a fabric-wrapped midsole yields a springier, high-rebound toe-off compared to Compression-molded EVA (reworked slab)'s grounded, stable feel.
Outsole Durability & TractionTougher rubber than 86% of road shoes
Vibram Megagrip with 5mm Traction Lugs8.2/10
Vibram Litebase with Traction Lug technology7.9/10
›Speedgoat 5 utilizes Vibram Megagrip with 5mm Traction Lugs compound formulated for extended 500+ mile abrasive asphalt longevity.
Fit & Sizing Consensus
Real-world wear-test consensus across runner foot profiles
Speedgoat 5
Ultrafly
Sizing LengthSizing differs
Runs Small
Speedgoat64%
True to Size
Ultrafly80%
Runs Large
Speedgoat 5: Runs small — consider 0.5 size up(n=22)
Ultrafly: True to size(n=28)
Toe Box WidthMatch
Performance Tight
Standard
Speedgoat52%Ultrafly72%
Wide
Speedgoat 5: Standard width(n=18)
Ultrafly: Standard width(n=24)
Arch SupportSizing differs
Flat / Low
Speedgoat61%
Neutral Stability
Ultrafly66%
High Arch
Speedgoat 5: Flat / low arch(n=15)
Ultrafly: Neutral stability / moderate arch(n=18)
The Record · Specification Telemetry
Cohort-relative percentiles and verified technical specs
Speedgoat 5
Ultrafly
Weight (US Men's 9)Lighter than 63% of daily trainers
Speedgoat 5292g
Ultrafly300g
›HOKA Speedgoat 5 saves 8g per stride, noticeable after mile 6 of continuous running.
Heel Cushion StackMore underfoot foam than 50% of trainers
Speedgoat 533.0mm
Ultrafly38.5mm
›Nike Ultrafly delivers 5.5mm more vibration isolation for long recovery efforts than Speedgoat 5.
Heel-to-Toe DropΔ 4.5mm
Speedgoat 54.0mm
Ultrafly8.5mm
›Ultrafly's 8.5mm drop shifts load toward the knees/quads, while Speedgoat 5's 4mm drop engages the Achilles and calves.
Midsole Foam & Energy ReturnHigher rebound than 75% of tested foams
Compression-molded EVA (reworked slab)6.8/10
ZoomX foam in a fabric-wrapped midsole7.4/10
›ZoomX foam in a fabric-wrapped midsole yields a springier, high-rebound toe-off compared to Compression-molded EVA (reworked slab)'s grounded, stable feel.
Outsole Durability & TractionTougher rubber than 86% of road shoes
Vibram Megagrip with 5mm Traction Lugs8.2/10
Vibram Litebase with Traction Lug technology7.9/10
›Speedgoat 5 utilizes Vibram Megagrip with 5mm Traction Lugs compound formulated for extended 500+ mile abrasive asphalt longevity.
| RADAR AXIS | Speedgoat 5 | Ultrafly | Δ DELTA | COHORT RANK |
|---|---|---|---|---|
| Cushioning & Softness | 8.4 | 9.0 | −0.6 (Ultrafly higher by NaN) | #4/28 |
| Energy Return & Bounce | 6.8 | 7.4 | −0.6 (Ultrafly higher by NaN) | #4/28 |
| Weight Efficiency | 6.5 | 7.0 | −0.5 (Ultrafly higher by NaN) | #4/28 |
| Stability & Support | 8.1 | 8.1 | 0.0 (dead even) | #4/28 |
| Traction & Grip | 9.7 | 8.9 | +0.8 (Speedgoat 5 higher by 0.8) | #4/28 |
| Upper Comfort & Lockdown | 7.6 | 8.4 | −0.8 (Ultrafly higher by NaN) | #4/28 |
| Breathability | 7.3 | 7.6 | −0.3 (Ultrafly higher by NaN) | #4/28 |
| Durability | 8.2 | 7.9 | +0.3 (Speedgoat 5 higher by 0.3) | #4/28 |
| Meta-Score | 81contender | 82strong | −1.0 | Calibrated |
The Runner's Pick
Final Decision: Who Buys Which Model?
Side-by-side selection criteria grounded in verified mechanical specs
HOKA
Speedgoat 5
81
Choose the Speedgoat 5 if:
Choose the Speedgoat 5 if your priority is tenacious rubber bite across slick pavement and wet turns powered by Compression-molded EVA (reworked slab) (292g). It is the better match for runners targeting all-weather grip and confident cornering on slick streets over the Ultrafly's focus on high-mileage protection and low-impact recovery cruising.
4mm drop · 292g · $155Audit
Nike
Ultrafly
82
Choose the Ultrafly if:
Choose the Ultrafly if your priority is plush step-in collar padding and irritation-free lockdown powered by ZoomX foam in a fabric-wrapped midsole paired with a carbon plate (300g). It is the better match for runners targeting friction-free blister prevention across long endurance sessions over the Speedgoat 5's focus on all-weather grip and confident cornering on slick streets.
8.5mm drop · 300g · $250Audit
Quiver Overlap
Direct Trail Rivals
2-Shoe Rotation Strategy
Both models occupy the exact same trail slot on your shoe rack. Rather than buying both, runner consensus suggests picking the lighter Speedgoat 5 (292g) for quicker cadence, or the Ultrafly for its ZoomX foam in a fabric-wrapped midsole ride feel and structure.
Speedgoat 5 RoleTrail Workhorse
Ultrafly RoleAlternative Trail
Explore Related Showdowns
High-traffic benchmark rivalries and cohort showdowns
