Fencing Review

A platform connecting competitive fencers with world-class coaching - no matter where either one trains.

RoleDesign & Engineering

StackReact, TypeScript, Next.js

StatusShipped

Building a worldwide coaching platform.

Most fencers train at one club with one coach. But what if a fencer in Cairo could upload a three-minute bout, and in 20 minutes receive an annotated video, voice commentary, and performance ratings from a coach in Paris? That is the exact scenario our team of 2 internationally competitive fencers and MIT coach with decades of experience envisioned: leveraging powerful modern media, annotation, and transcription technology so a coach in Seoul can serve a student in Buenos Aires through the shared language of fencing and boundless improvement.

150+national federations worldwide

40Kregistered US fencers

1coach per club for most fencers

The coach's canvas.

A fencing bout is dense - dozens of discrete actions in a few minutes. We gave coaches the tools to break a bout apart, layer voice and drawings onto each moment, and hand back a structured review the student can follow from the broad strokes down to the smallest detail.

Bout video with segment tree - three time-coded segments branch from the main video

Annotated video player with coach voice overlay, playback controls, and speed options

Every tool composes into a session.

Segments that nest inside segments. Playback that stays in sync with voice. Recording that knows exactly where you are in the bout. These are not mockups - try them.

Segment Tree

0:000:301:001:301:42

Playback

0:00 / 0:47

Voice Recording

Watch the distance on the advance-lunge. Preparation is too shallow - extend before the foot leaves.

Scoring

Distance7/10

Timing6/10

Tempo8/10

Footwork5/10

Bladework7/10

Strategy6/10

Mental4/10

Attack8/10

Defense6/10

Overall7/10

Clarity for the student.

The student side strips away tool complexity. Upload a bout, pick a coach, pay, and receive a structured review - ratings, annotated footage, and voice commentary in one feed.

1Upload bout footage

Drag and drop your bout videoorBrowse filesMP4, MOV up to 500 MB

Track your progress across every reviewed bout.

Mar

Apr

May

Jun

Jul

Coach MorettiFoilMar 12

Blade prep timing too late on advance-lunge. Parry-riposte solid.

3.2

Coach ParkSabreMar 28

Attack-on-prep improving. Need to commit harder on fleche.

3.8

Coach MorettiFoilApr 15

Point control much better. Start working on compound attacks.

4.1

Coach DupontEpeeMay 3

Distance sense needs work. Counter-attacks landing but too shallow.

3.5

Coach ParkSabreMay 20

Explosive start. Best fleche timing yet. Clean priority calls.

4.5

Coach MorettiFoilJun 8

Textbook compound attack. Preparation is where it needs to be.

4.8

Coach DupontEpeeJun 22

Strong distance control. Right-of-way disputes handled cleanly.

4.2

Coach ParkSabreJul 10

Perfect timing on every exchange. Ready for regional competition.

5.0

Trust signals on both sides.

Students rate coaches after each review. Coaches earn tier promotions based on volume and quality. Both sides can see how the system works - trust is built into the design.

Student Reviews Coach

Coach MorettiFoil

Clear ExplanationsGreat Drawings

Coach ParkSabre

Detailed FeedbackFast Turnaround

Coach Tier Promotion

Bronze CoachStarting tier

5-min boutUp to $15

10-min boutUp to $25

Next: Silver - need 10 reviews and 3.5 avg rating to unlock $25 pricing

What a two-sided market actually unlocks.

The hardest part was not the annotation engine or the segment tree. It was understanding that a fencing coach does not review video the way a film editor does. They scrub, point, speak, and move on. The tool had to disappear behind the coaching.

But the deeper realization was this: a two-sided coaching market does not just eliminate geography. It exposes a fencer in Buenos Aires to a sabre tradition they would never encounter at their local club. It lets a Hungarian coach share decades of counter-attack thinking with an epeeist in Seoul. The platform does not merely connect supply and demand - it creates a channel for the exchange of styles, philosophies, and competitive instincts that no single club, federation, or geography could contain.