Why you write on the arm

Irish pool decks are loud. Parents are not on deck unless they are on duty, so you cannot lean over a chair and whisper “you’re heat 2, lane 4.” The child is with the team. A Sharpie on the upper arm is the cheapest meet management in the sport: they can look down, and anyone lining them up can look across.

The numbers are an address, not a pep talk. Miss the chair and they miss the race, or they sit in someone else's heat while the clock is running. If you cannot yet find a name on a start list, read how to read a heat sheet first — then put those three numbers on skin.

Event, heat, and lane

Every swim is pinned by three numbers, in the order the gala runs. That is what you copy. Nothing else.

E — event is the race on the schedule — Event 7 might be Girls 11–12 50 Freestyle. Events go in numerical order. Two events away is not two minutes away.

H — heat is one trip down the pool. Heat 1 is first. Write the number, not “the middle heat.”

L — lane is the block for that event only. Lane 6 in the 50 free can be lane 2 in the 100 back. Copy it from the start list, not a psych sheet.

Irish club notes say write E, H, and L. North American columns are the same three letters. A stroke shorthand helps a child with three 50s. A seed time on the arm is decoration. Marshalling checks heat 2, lane 4 — not 39.88.

Two layouts that both work

There is no World Aquatics by-law for handwriting. Two habits survive a wet Saturday. Pick one so your child can read their own arm.

Columns — E / H / L. Three headings, one row per race. This is the US and Canadian grid, and the heat-sheet sketch. Keep the numbers large.

Fermoy-style — one line per race. Irish first-gala notes still use E12 – 50FR – H3 – L4. Event, stroke, heat, lane. The stroke in the middle is the point: a 50 free, a 100 back, and a 50 fly look the same if you only write 7 / 12 / 19.

Columns if they like a table. Fermoy-style if they like a sentence. Do not mix both on the same arm.

Where on the arm

Outer upper arm, below the shoulder, on the side they can glance down. Left arm is usual: a right-handed parent can write it, and the swimmer can look without twisting. High enough that a hoodie cuff does not sit on it all morning. Low enough that it is not in the armpit on the block.

Where to write event, heat and lane Left upper arm seen from the side. A dashed box sits on the outer upper arm, below the shoulder, labelled E H L. Outer upper arm — where they can glance down Left arm is usual · not the hand, palm, or thigh E H L 7 2 4 Shoulder Write here Outer upper arm, below the deltoid Marshal sees it from the side.

Write on dry skin on the outer upper arm. A marshal walking a line of chairs should be able to read it without turning the child around.

Do not write on the hand or palm — a towel and warm-up erase both. Do not write on the thigh; a parka hides it. If a session issues bibs, write beside them, not through them.

Sharpie, not biro

A biro is a shopping list. It smears into a grey bruise in the first length of warm-up. A pencil is worse. A washable marker is a wish. Use a black Sharpie — or another permanent marker of the same family — fine point for a small arm, regular for an older one. Black reads under leisure-centre lights. Colour fades faster.

Write on dry, lotion-free skin. Sunscreen is why a perfect grid is a ghost by Event 3. The night before beats the car park at 7:40am. The marker lives in the parent bag — Sharpie upstairs, togs downstairs, as in the gala packing list. Pack a spare. Caps walk off.

Don't do this

Do not send them to marshalling with a biro grid, a seed time instead of a lane, or numbers copied from Thursday's psych sheet. Heat and lane live on the start list.

More than one race

One row per swim, in the order they race. Add the stroke if two events are the same distance: 50FR, 100BK, 50BR, 50FL, 200IM. Relays count — they are the ones families forget. Why you stay for them is why skipping relays is usually a mistake.

Do not write the seed time, or a sibling's lane because you highlighted the whole club. Circle the name, copy that row only. If they scratch, put a line through that row. If the grid is a novel, they will not read it when it matters.

A worked arm — Holly on Saturday

Same invented swimmer as the heat-sheet example: Holly Ryan, Event 7 heat 2 lane 4 in the 50 free, then a 100 back and a 50 fly. Columns first. Fermoy-style under it. Same three races. Pick one.

E
H
L
7
2
4
12
1
6
19
3
5

Columns: E7 H2 L4 · E12 H1 L6 · E19 H3 L5. Add 50FR / 100BK / 50FL if she will mix the 50s up.

Fermoy-style

E7 – 50FR – H2 – L4

E12 – 100BK – H1 – L6

E19 – 50FL – H3 – L5

Same three swims as a sentence. Examples only — copy the start list in front of you.

How to annotate the sheet first

Circle the name. Write E7 H2 L4 in the margin. Take a photo. Then copy those numbers onto the arm.

Will it survive warm-up?

A Sharpie is water-resistant. It is not a tattoo. Kick, a rough towel, and a child rubbing the numbers will fade a grid. Write the night before, check it after warm-up, and recopy if you have to. That is why the pen stays in your bag.

A morning reseed is the other reason. Heats move. A WhatsApp PDF at 9pm is not always the PDF at 8am. If Event 7 is now heat 3, lane 5, rewrite that row. Do not leave yesterday's address on a child about to sit in the wrong chair.

Irish decks and US decks

The three numbers are the same sport. The Saturday is not. In Ireland you rarely buy a heat sheet at a table. The host sends a Hy-Tek start list; your Team Manager drops the PDF on WhatsApp. That is the heat sheet. You mark the arm at home. Spectators stay off deck — Athlone, Laser, Kilkenny, most Swim Ireland hosts. The child sits with the team. You keep the Sharpie upstairs.

Bigger Irish meets may appear on Meet Mobile. Many Sunday Level 1 galas will not. US parents often buy a printed heat sheet. Fermoy-style is the Irish club sentence. E / H / L columns are the North American grid. Both are correct. A psych sheet with no heats, a biro, and a parent on an Irish deck during Event 7 are not.

Marshalling and the call room

The arm gets your child to the right chair. Marshalling — line-up or call room — is where they sit in heat and lane order. Club guides say 15–20 minutes before the event. At a small gala it is chairs. At a championship meet it is a call room. They line people up by the same three numbers you wrote at home.

The child should be able to answer “what heat and lane?” without looking at you in the gallery. If they have to climb the stairs to ask, the arm failed. Keep your own copy of the start list — parents are not on Irish pool decks. The longer version of chairs, call rooms, and why you stay upstairs is marshalling and the call room.

Night-before checklist for parents

Better on the kitchen table than on a wet bench.

  • ✓Get the start list. A psych sheet has no heats or lanes yet.
  • ✓Find every event, including relays. Circle the name. Write E / H / L in the margin, then on the outer upper arm.
  • ✓Black Sharpie, dry skin, no lotion. Pack the pen in the parent bag with a spare.
  • ✓Add stroke shorthand if they have more than one 50. Do not write seed times on the arm.
  • ✓Check in the morning for a reseed. After warm-up, recopy if it has faded.
  • ✓Know the Team Manager. They stay on deck. You stay on the balcony.

The Sharpie is for the day. The time needs a home.

This is the part the club PDF will never write. You did the job. Event 7, heat 2, lane 4 is on the arm. They raced. Someone screenshots a scoreboard, or a result lands in WhatsApp, or Meet Mobile flickers a time that still says unofficial. Then you drive home. The child showers. The numbers that ran the morning are soap. That is correct — the Sharpie was never the archive. It was a day-pass to the right chair.

What you still need is the swim: event, time to the hundredth, course. E7 H2 L4 got them to the block. 39.12 in a 25m pool is what Saturday produced. Mix those facts and you will remember the lane and lose the clock — a photo of a 4 in the next lane, in a pocket that also contains a damp hat.

Meet Mobile goes quiet when the host stops publishing, often within a week, and many club galas never appear. Level 1 times never land on the public rankings. The programme goes in the recycling. The arm is already clean. If last best lives in any of those places, it does not live. The longer argument is never lose a PB: log the times before you unpack. The wet bag can wait in the hall.

I built Finzy for that list, not for the Sharpie. Finzy does not mark arms, does not generate a heat grid, and does not import official results. You type the swim: event, course, time, date, gala. Rankings miss Saturdays. Your log should not. Do it in the car park. Five lines. If they were NT going in, today's clock is personal best number one. If they added time, keep that too. The Sharpie did its job when they sat in the right chair. After that, move the numbers into a lasting PB list. The ink is for marshalling. The time is for the season.

Event, heat, lane on the arm. After the race, the Sharpie washes off — the time should not.

FAQ

Write event, heat, and lane on the outer upper arm with a black Sharpie. Three columns — E, H, L — or Fermoy-style E12 – 50FR – H3 – L4. One row per race, including relays. Night before, dry skin; check for a reseed in the morning.
E is event, H is heat, L is lane. Marshalling lines people up by those three numbers, copied from the heat sheet or start list — not from a psych sheet, which has no heat or lane.
On the outer upper arm, below the shoulder, where they can glance down and a marshal can see it from the side. Not the hand, palm, or thigh. Left arm is usual.
A biro smears in warm-up. A black Sharpie survives a session on dry, lotion-free skin. Pack it in the parent bag and recopy after warm-up if it fades.
One row per race, in order. Add a stroke shorthand (50FR, 100BK, 50FL) if they have more than one 50. Include relays. Do not write seed times — marshalling only needs event, heat, and lane.
The three numbers are the same. Irish notes often use a Fermoy-style line with the stroke in the middle. North American decks usually use E / H / L columns. In Ireland the Sharpie stays in the parent bag on the balcony.