Setup: The painted court lines are the pitch. Two taggers with a ball each, everyone else spread on the lines. Runners only on lines; house rule on trainers and no sliding.

How it works: Tig, but every player must travel along the painted lines — no cutting across open floor. Taggers tag by touch while carrying their ball; a tagged player takes the ball and the job. After three minutes, everyone takes a ball and the game continues with toe-taps required at every line junction. The lines force the sharp turns and stop-starts a greasy pitch would never let you train safely tonight.

Setup: Four stations, one on each wall of the hall, marked with a flat cone 2m out: (1) fist-pass rebounds, (2) weak-hand fist passes, (3) high throw off the wall, jump and catch overhead, (4) low drives off the skirting, scooped on the return. Even groups at each.

How it works: Forty seconds of work, twenty to rotate. Three full laps of the circuit. The wall is the most honest training partner in the club — it returns exactly what you gave it, so a bad rebound is instant feedback on the strike. Count reps out loud at station one each lap; the group total has to rise every lap or the last station does five press-ups... say it, watch the counting sharpen, and never actually enforce it.

Setup: Full court, 4v4 or 5v5 in bibs. A bench (or mat) across each end line with a catcher from the attacking team standing behind it. Hand-passing only.

How it works: Score by hand-passing to your catcher behind the bench — the catch must be clean and the catcher's feet stay behind the bench line. The scorer becomes the new catcher, so the job rotates itself. Defenders can't cross the bench line, which creates the same protected target as an island end zone outdoors. Two games running side by side if numbers are big; nobody stands on a sideline in a hall session.

Setup: Full court, two teams, mats propped against each end wall as goals. Rolling subs standing ready at halfway if you're above 14 players.

How it works: Gaelic football translated for a roof: kick passes below head height only, solo or bounce as normal, walls are live — play the rebound, no sidelines, no stoppages. Score one for striking the mat with a fist pass or a low kick. Restart instantly from the conceding team's end wall. Sub every ninety seconds on a rota so the pace never drops; a hall match at full tilt is the best conditioning a wet week will give you.

Setup: Everyone on the centre line, socks-width apart, balls racked by the door. Calves, quads, hamstrings and ankles — the hard floor asks more of ankles than grass ever does.

How it works: Stretch through the list at 15 seconds a side while you run the reflection. Close by naming the thing the hall gave you tonight that grass couldn't — honest rebounds, no dead time, sharp turns — so the group stops hearing indoor nights as cancelled nights.