For most of the major events, PHRF Classes will be split as follows. Some events may require further class splits into sub-sections. The actual splits should be listed on the race circular for the event. It is your responsibility to start at the correct time.
The following class splits were approved for 2012 at the 2011 Annual Meeting of the Board of Delegates
| REGION(S) | CLASS | 2012 SPLITS |
| IIIAW only** | A0 | Up to 25 |
| IIIAW only** | A1 | 26 to 70 |
| IIIAW only** | A2 | 71 to 109 |
| I, II, IIISE** | A | Up to 109 |
| I, II, IIIAW & IIISE** | B | 110 to 145 |
| I, II, IIIAW & IIISE** | C | 146 and up |
| IIIPR | Spinnaker | All |
| IV North | A | Up to 112 |
| IV North | B | 113 to 160 |
| IV North | C | 161 and up |
| IV South | A | Up to 109 |
| IV South | B | 110 to 163 |
| IV South | C | 164 and up |
| Regions I-III** | Sport Boat | All Ratings |
| All Regions I-IV | Corinthian | All Ratings |
| All Regions I-IV |
PHRF N* |
All ratings |
* PHRF N (non-spinnaker) will be sailed allowing two (2) headsails downwind unless sailing instruction specifically state differently.
** PHRF has approved a Sport Boat class for regions I- III only. The PHRF Board of Handicappers have the final determination of whether a boat should be listed as "SB" or not. Boats designated by PHRF of the Chesapeake as "SB" shall sail in the Sport Boat Class, when offered by the Race Instructions:
Boats determined to be a Sport Boat by PHRF will be designated as “SB”on their current Valid Certificate and on the official PHRF Valid Listing.