Know who's ready.
Every session.
Every game.
Underdog gives GAA coaches a single view of squad availability, wellness, training load, injuries, and fitness — before they set foot on the pitch. No spreadsheets. No WhatsApp threads. No surprises at the gate.
30 sec
Daily player check-in
Offline
Works on any pitch, any signal
5 GPS vendors
StatSports Pro & Athlete Series, PlayerTek, SPT, PlayerData
One login
All your squads
Running a squad is an information management problem as much as a coaching one.
Most managers arrive to training without a clear picture, making decisions on gut feel, and carrying unnecessary admin. For clubs without a dedicated performance staff, that gap is even wider.
Underdog closes it.
WhatsApp threads to find out who's available before training
Spreadsheets — or memory — to track who trained and who didn't
No reliable way to know a player is injured until they show up and tell you
GPS data locked inside a vendor portal that takes an hour to make sense of
No record of what a player was doing in the weeks before they got hurt
What coaches can do better next week
Everything is connected. A player's GPS output, their check-in, their injury record, and their test results in one place — so you get a complete picture without building it manually.
Know who's available before training
Before every session, see a single view: fit, doubtful, injured, unavailable. Players check in daily through the mobile app — a 30-second tap. When someone reports a niggle, you see it immediately and can escalate to a formal injury record in two taps.
See who's carrying too much load — or not enough
After every session, each player gets a traffic-light signal — green, amber, or red — based on whether their load is in a safe range relative to recent weeks. No sports science knowledge required to read it.
For S&C / Physio: For S&C: individualised metrics under the hood. HSR and sprint distances calculated against each player's own recorded ceiling (MSS), not a squad average. ACWR-based workload bands.
Run matchday from the touchline
The coach app works fully offline. Record the exact time each half starts and ends from your phone — no signal needed. That timestamp automatically links to GPS data and produces accurate half-by-half breakdowns without any post-match admin.
Track injuries simply enough for a volunteer club
Log an injury in under a minute: body area, how serious, what happened. The system tracks recovery, alerts you when a return date slips, and shows what the player was doing in the weeks before it happened.
For S&C / Physio: For physios: Out → Restricted → Returned status stages with full event history. Pre-injury load chart. 12-week recurrence detection on the squad body map.
Test fitness on the pitch, not in a spreadsheet
Run shuttle runs, 2 km time trials, 30-15 IFT beep tests, Yo-Yo IR1/IR2 or MSS sprint tests using the app's built-in timer and audio engine. Stage-dropout capture: tap an athlete as they stop. Results save directly to each player's profile.
For S&C / Physio: For S&C: results automatically derive MAS, VIFT and MSS anchors. Those anchors drive the conditioning prescription engine — individual HIIT speeds and COD shuttle distances per player, grouped into cone lanes.
Log gym sessions from the player's own phone
Players record their gym work themselves — Full Body, Upper, or Lower session type — using a structured phase layout (Prep → Power → Strength → Accessory → Conditioning). Sets, reps, load, and exercise name, captured in the mobile app. No clipboards, no spreadsheets, no chasing players for data.
For S&C / Physio: For S&C: sessions are structured around movement patterns (squat, hinge, upper push/pull, carry/core, power, plyometric). Phase order is enforced visually so the S&C knows the data is clean. Coaches can review execution history and load trends per athlete on the desktop dashboard.
Get individual session plans ready to print
Pick a training goal, pick a drill format, and get a grouped lane sheet: each player's individual target distance, sorted by speed tier. Print it, or read it off the phone. No calculator required.
For S&C / Physio: For S&C: Buchheit-validated COD shuttle correction. Pathway B (VIFT × %VIFT) when 30-15 available; Pathway A (MAS + %ASR × (MSS−MAS)) otherwise. Locomotor profile (Speed/Hybrid/Endurance) and per-turn deceleration penalty.
Plan the season backwards from your peak match
Set your season window and championship date and get an editable phase skeleton — build, maintain, taper, transition — laid out against your fixture list. Multiple key games each get their own taper.
For S&C / Physio: For S&C: a weekly Microcycle Planner anchors training days to MD-3/MD-2/MD-1 targets pulled from Game Demands, automatically biased by the season phase the week falls in.
Turn a GPS session into a video timeline
Export any GPS session as a synced timeline — sprints, efforts, match phases and highlights — ready to drop into Hudl Sportscode, Nacsport, Veo, Trace, or whatever video tool your club already uses. No manual syncing.
For S&C / Physio: For S&C: three formats (Sportscode instances XML, timed CSV, plain-text mm:ss markers) cover both video-analysis packages and DIY pitch-side cameras. A kickoff-offset field aligns GPS time to the film's own clock.
One app for the whole management structure
A single login covers adult, underage, ladies, and academy squads. Coaches across more than one club see everything from one account.
Manager / Head Coach
Know who is available and ready before every session and game. No chasing. No surprises.
S&C Coach
Monitor training loads, run fitness tests, prescribe individual sessions. The depth is there when you need it.
Physio / Team Doctor
Log and track injuries, manage return-to-play, review the pre-injury load picture.
Selector / Assistant
A clear read of squad availability without needing to ask anyone.
Player
Check in daily, see your own readiness and activity, get push reminders on your schedule.
Club Administrator
Manage the roster, control access, oversee multiple squads — all from one login.
Different by design, not just by feature list
All-in-one, not all-or-nothing
Most clubs piece together GPS from one provider, injury tracking from a spreadsheet, wellness from a Google Form, and testing from a stopwatch app. Underdog replaces all of them — and because everything is connected, the coach gets a complete picture without building it manually.
Built for GAA realities
Offline-first by design. Match timing, wellness check-ins, fitness tests, and conditioning plans all work with no signal and sync automatically when connectivity returns. No offline workarounds, no "make sure you're connected" warnings.
Club-scale, not academy-scale
Multi-squad support, a simple role system, and pricing aimed at volunteer-run clubs. Not a professional academy system retrofitted downward.
Works with your GPS hardware
StatSports Pro Series, StatSports Athlete Series, Catapult PlayerTek, SPT and PlayerData (Connect API) all feed the same vendor-neutral pipeline. A club runs one provider at a time, and everything downstream — load reports, session history, fitness anchors — is identical regardless of which device collected the data.
The advanced capability is hidden
The system uses individualised metrics under the hood — each player's effort is measured against their own ceiling, not a squad average. But a coach never needs to understand the method. The output is a colour, a count, or a lane number.
No GPS? Still generates real programs.
GPS adds depth, it's not a requirement. Clubs without vests still get gym attendance, wellness, jump testing, on-pitch fitness testing — and individualised conditioning programs and lane sheets generated from those test results with a stopwatch alone, no vest needed. The GPS layer unlocks automatically once hardware is in place.
Everything in one place
Availability & Wellness
- Daily player check-in: readiness, sleep, soreness, mood — 30 seconds on the phone
- Push notification reminders on player-chosen days and times
- Coach view: fit / niggle / injured / unavailable at a glance
- Automatic flags when check-in scores drop or a player raises a concern
- One-tap escalation from a niggle to a formal injury record
Injury & Return to Play
- Log an injury in under a minute: body area, severity, type, and cause
- Return-to-play timeline with automatic alerts when dates slip
- Status stages: Out → Restricted → Returned, with full history
- Pre-injury load chart: what was the player doing in the weeks before?
- Squad body map with 12-week recurrence detection
Training Load & GPS
- GPS data from StatSports Pro Series, StatSports Athlete Series, Catapult PlayerTek, SPT and PlayerData — one vendor per club, identical downstream
- High-speed running and sprints measured against each player's own ceiling — not a squad average
- Traffic-light workload bands: green / amber / red from an EWMA acute:chronic ratio
- Session detail with minute-level heatmaps and half-by-half breakdowns
- Repeat high-intensity effort and recovery tracking
- Speed Progress: max speed, speed endurance and top-speed exposure over 12 weeks
Video Analysis
- Export any GPS session as a synced timeline for Hudl Sportscode, Nacsport, Catapult Vision or LongoMatch
- Timed CSV export for Dartfish and spreadsheets
- Plain-text marker list for Veo, Trace, Pixellot, Spiideo, Hudl Focus and any generic video player
- Whole-squad or single-player export, with sprints, efforts, match phases and highlights as coded instances
- Kickoff-offset field aligns GPS time to the film's own clock — no manual syncing
Gym Sessions
- Player-led gym logging from the mobile app — no data entry by coaches
- Structured phase layout: Prep → Power → Strength → Accessory → Conditioning
- Three session types: Full Body, Upper Body, Lower Body
- Movement pattern tagging: squat, hinge, push, pull, power, plyometric, carry/core
- Sets, reps, load, and exercise name captured per block
- Coach desktop: full execution history and load trend per athlete
Fitness Testing
- On-device beep engine and timer for shuttle runs, 2 km time trials, 30-15 IFT, Yo-Yo IR1/IR2 and MSS sprint tests
- Stage-dropout capture: tap an athlete as they stop to record their result instantly
- Works fully offline — results sync when back in signal
- Results automatically update each player's MAS, VIFT and MSS anchors and training targets
Session Planning & Prescription
- Goal-based HIIT session builder: select a training goal, get individual distances and speeds
- Custom interval builder: set work-to-rest ratio and intensity freely
- Drill library with individual cone distances per player based on their fitness test results
- Printable grouped lane sheets: players sorted by speed tier, readable at the pitch
- Save sessions to a training plan and compare actual GPS output against the prescription
- Game Demands: plan each session — or a whole training week — as a dialled percentage of what a match costs, per stressor
Season Planning
- Backwards-from-peak phase skeleton: taper, build, maintain, transition, laid out against your fixture list
- Multiple key games each get their own independent taper
- Editable phase table and a visual timeline over the season
- Weekly Microcycle Planner: a full training week generated from your next match, MD-3 through MD-1
- Season phase automatically biases Game Demands training targets
Attendance & Engagement
- GPS-based field attendance: automatically records whether a player was present
- Gym adherence, jump testing participation, and wellness check-in rate in one heatmap
- Availability excuse logic: players flagged unavailable are not counted as absent
Match Timing
- Coach records half start and end times live from the phone — no signal needed
- Optional game quarter recording
- Automatically timestamps GPS data — no post-match admin for half reports
- Extra time supported
Roster & Admin
- Bulk roster import from CSV or Excel with per-row validation
- Role-based access: each role sees only what they need
- Multi-org support: one login for multiple squads or clubs
- Template sharing: export and import session templates between organisations
Ready to know your squad, every session?
Underdog is built for GAA clubs at every level — senior adult, underage, ladies, academy. Tell us about your club and we'll be in touch to set you up.
Priced for volunteer-run clubs, not professional academies.
Can't find it, or setting up a new panel? No bother — just skip ahead.
For integration, procurement, or security queries, mention it in the form — same inbox.