| Event | Cause For Concern | Change | Decision Made By | When |
|---|---|---|---|---|
| Strong Winds In Marshalling Area | Crews drifting across the canal or towards the start and unable to maintain their position | Either keep crews facing towards the lock gates (delay spinning until immediately before each crew starts) or move marshalling zone to quieter water | Blue Zone Marshalls | As crews arrive at the start |
| Mist/Fog/Low Visibility (no clear line of sight from one bend to the next) | Crews colliding with the bank and/or other crews | Delay start until visibility improves / cancel division | Regatta Control | 15 minutes before the first boat is due to launch |
| High Winds On Course | Crews unable to reach the start or insufficiently experienced to cope with the conditions | Scratch crews that are at risk of capsize or who fail to make adequate progress to the start | Club Coaches Safety Boat | Before scheduled launch time for the relevant crew If crews are passed by the safety boat |
| Snow /Heavy Rain /Freezing Temperatures with High Winds | Prudent amount of clothing insufficient to prevent hypothermia when waiting at the start | Shorten course and revise marshalling plan - crews will join a constantly moving circulation pattern of boats rowing between the lock gates and the beeches corner. When all boats have arrived, crews will be set off out of sequence in the order that they arrive at the new start location | Regatta Control | 15 minutes before the first boat is due to launch - to allow crews to be briefed on revised marshalling plan |
| Ice On Canal | Damage to Boats | Delay start until ice cleared or cancel division | Regatta Control | 15 minutes before the first boat is due to launch |
| Insufficient Umpires | Not able to warn boats if there is a collision / obstruction on the course | Shorten course to a length that can be observed by the number of umpires in attendance | Regatta Control | At start |
| Too many crews in a division | Insufficient space to marshal all crews behind the start | Shorten course | Regatta Organisers Blue Zone Marshals | As the running order is collated If crews do not follow instructions to overlap 3 abreast at the start |