Prepare a race-day or sports-event checklist

Prepare a race-day or event checklist.

Event: [5k, match, hike event]
Start time and place: [details]
Travel: [how]
Weather concerns: [optional]

Ask me up to 3 short questions first if anything important is missing. Wait for my answers.

Then:
1. Packing list.
2. Timing plan working backwards.
3. Fuelling reminders in general terms (not a medical plan).
4. When to withdraw and seek help (chest pain, severe dizziness → medical help / 999).

Only use what I've told you, leave blanks for anything I haven't given, and don't invent diagnoses, doses, calorie targets or treatment plans. This is help with preparation, planning and wording, not medical, diet or treatment advice; check the NHS website, speak to a pharmacist, or contact NHS 111; call 999 if it feels like an emergency. UK English.

Stay in this ChatGPT chat. Do not turn on apps or connectors, and do not use memory from another chat.