PY Look Alike

SCHRS is the principal handicapping system recognized by World Sailing for cat on cat racing. Where monohulls and catamarans race together in the UK, Portsmouth Yardstick (PY) ratings are commonly used. The PY Look Alike ratings below are provided to enable catamarans without official PY Ratings to compete.

The Portsmouth Yardstick Committee and SCHRS Technical Committee have agreed a conversion factor that may be applied to any make, model and configuration of catamaran for which an SCHRS rating has been approved by SCHRS so that it may be raced under the Portsmouth Yardstick. The conversion formula is SCHRS x 678 = PY and is shown in the column headed PY LOOK ALIKE.

To strengthen the SCHRS to PY conversion factor, UK clubs are encouraged to provide data to the RYA for all races in which catamarans compete. If such races are initially scored under SCHRS, sailing scoring programs such as Sailwave or HAL Race Results are capable of dual scoring under a second system such as PY. This would allow for results to be considered under both SCHRS and PY and the results of PY Racing to be simply uploaded direct to www.pyonline.org.uk, strengthening both schemes. For advice on dual scoring use scoring software help systems or contact RYA Technical and Racing Services.

PY Look Alike 2024

CLASS

Rating

CREW

PY

PYLA

2Win Sonic

1,301

2

882

2Win Sonic Solo

1,279

1

867

2Win Twincat 13 (without spi)

1,530

2

1037

2Win Twincat 15 Sport

1,247

2

845

2Win Tyka

1,390

2

942

A-Class Foils

0,981

1

684

665

A-Classic (straight or constant curve foils)

1,026

1

696

AHPC Capricorn F18

1,000

2

678

AHPC Taipan 4.9

1,099

2

745

AHPC Taipan 4.9 Spinnaker

1,035

2

702

AHPC Taipan 4.9 Solo

1,125

1

763

AHPC Taipan 4.9 Solo Spinnaker

1,042

1

706

Alado 18 Aileron

1,091

2

740

Alado 18 F18

1,000

2

678

Bim 16 Double Spinnaker

1,166

2

791

Bim 16 Javelin 16 Solo Spinnaker

1,030

1

698

Bim 16 Javelin Double Spinnaker

1,126

2

763

Bim 18 Class A (>100 Kgs)

1,101

1

746

Bim 18 Double

1,074

2

728

Bim 18 Double Sloop

1,055

2

715

Bim 20

1,031

2

699

Bim Javelin 18 Hightech

1,018

2

690

Bim Javelin 2 (not 18HT)

1,049

2

711

Bimare X16 Double Spinnaker

1,135

2

770

Bimare X16 Solo (No spi.)

1,118

1

758

Bimare X16 Solo Spinnaker

1,052

1

713

Bimare X16FPlus

1,038

2

704

Bimare F16

1,044

2

708

Bimare X4 F18

1,000

2

678

Blade 16 Double light (WS < 123 kgs)

1,022

2

693

Blade 16 Solo light (WS< 119 kgs)

1,024

1

694

C 4.8

1,310

2

888

C 4.8 Major

1,272

2

862

Catapult

1,284

1

898

871

Cirrus 16 Q F 16

1,048

2

711

Cirrus 16 Q Solo F16

1,069

1

725

Cirrus B1 F18

1,000

2

678

Cirrus Ecole

1,106

2

750

Cirrus Energy Regate

1,119

2

759

Cirrus Energy Regate Solo

1,147

1

778

Cirrus Evolution

1,046

2

709

Cirrus Evolution Solo

1,093

1

741

Cirrus F18

1,000

2

678

Condor 16

1,202

2

815

Dart 15

1,429

1

926

969

Dart 15 Sport double

1,421

2

963

Dart 15 Sport double without trapeze

1,435

2

973

Dart 15 sport solo

1,296

1

904

879

Dart 16

1,324

2

898

Dart 16 X Race Spinnaker

1,243

2

843

Dart 18

1,231

2

822

835

Dart 18 Cat Boat

1,247

1

845

Dart 18 Spinnaker

1,176

2

797

Dart 20

1,115

2

756

Dart 20 TSX

1,124

2

762

Dart 20 TSX Spinnaker

1,076

2

730

Dart 6000

1,135

2

770

Dart Hawk F18

1,000

2

678

Dart Sting Double

1,368

2

928

Dart Sting Solo (with jib)

1,276

1

865

Dart Sting Solo (without jib)

1,384

1

938

Diam 3 F18

1,000

2

678

Drake

1,032

2

700

Falcon F16 Double

1,041

2

706

Falcon F16 Cat Boat

1,060

1

719

Falcon 16 Double light (WS<123 kgs)

1,022

2

693

Falcon 16 Solo light (WS<119 kgs)

1,024

1

694

Flying Phantom

0,901

2

611

Flying Phantom Essentiel

0,955

2

647

Flying Phantom Essentiel (with side racks)

0,948

2

643

Formula 16 Double

1,031

2

699

Formula 16 Solo

1,038

1

703

Formula 18

1,000

2

678

Goodall C2 F18

1,000

2

678

Goodall Viper Double

1,050

2

712

Goodall Viper Double DS

1,043

2

707

Goodall Viper Solo

1,065

1

722

Goodall Viper Foiling

1,000

2

678

Gwynt 14

1,256

2

852

Hawke Surfcat 7020

1,313

1

890

Hawke Surfcat 7020 (main only)

1,492

1

1012

Hobie 13

1,609

2

1091

Hobie 14

1,438

1

975

Hobie 14 Race (with jib)

1,305

1

885

Hobie 15

1,327

2

900

Hobie 15 Spinnaker

1,239

2

840

Hobie 16

1,218

2

826

Hobie 16 Easy

1,324

2

898

Hobie 16 Spinnaker

1,151

2

780

Hobie 17 (without wings)

1,233

1

836

Hobie 17 (with wings)

1,219

1

826

Hobie 18

1,109

2

752

Hobie 18 Formula

1,100

2

746

Hobie 18 Formula Spinnaker

1,037

2

703

Hobie 18 Formula 104

1,063

2

721

Hobie 18 Magnum (with wings)

1,113

2

755

Hobie 18 SX

1,129

2

765

Hobie 20 Formula

1,088

2

738

Hobie 20 Formula Spinnaker

1,016

2

689

Hobie 21

1,006

2

682

Hobie 21 Spinnaker

0,946

2

641

Hobie 21 Spinnaker (3 Crew)

0,985

3

668

Hobie 21 Formula

0,946

2

641

Hobie Advance

1,543

2

1046

Hobie Catsy

2,155

2

1461

Hobie Dragoon Club

1,502

2

1018

Hobie Dragoon Xtrem

1,417

2

961

Hobie Fox F20

0,969

2

657

Hobie FX One Cat Boat

1,088

1

738

Hobie FX One Double

1,048

2

711

Hobie FX Xtrem

1,050

2

712

Hobie Getaway (Without side benches)

1,287

2

873

Hobie Getaway

1,264

1

857

Hobie Max

1,139

2

772

Hobie Max Youth

1,151

2

780

Hobie Pacific (no spinnaker no wings)

1,158

2

785

Hobie Pacific (spinnaker no wing)

1,097

2

744

Hobie cat T1

1,481

2

1004

Hobie cat T1 Spinnaker

1,406

2

953

Hobie Teddy

1,604

3

1088

Hobie Tiger F18

1,000

2

678

Hobie Twixxy

1,438

3

975

Hobie Wave

1,537

2

1042

Hobie Wildcat F18

1,000

2

678

Hurricane 4.9

1,160

2

786

Hurricane 5.5

1,052

2

713

Hurricane 5.9

1,069

2

725

Hurricane 5.9 Spinnaker

1,007

2

683

Hurricane 5.9 Sport

1,025

2

695

Hurricane 5.9 SX

1,030

2

695

698

Hurricane 500

1,207

2

818

Hurricane 500 Spinnaker

1,110

2

753

IFLY 15 Solo

1,129

1

765

IFLY 15 Solo (with code F)

1,093

1

741

IFLY 15 Double

1,213

2

822

IFLY 15 Double (with code F)

1,173

2

795

KL 15.5 (SL15.5)

1,236

2

838

KL 16

1,178

2

799

KL 17 Power

1,151

2

780

KL 17 Regate

1,191

2

807

KL 17 Regate Spinnaker

1,127

2

764

KL 17.5 Tonic (without spinnaker)

1,210

2

820

KL 18 Regate

1,100

2

746

KL Booster

1,138

2

772

KL Phoenix F18

1,000

2

678

L by Erplast

1,348

2

914

L by Erplast Spinnaker

1,277

2

866

M by Erplast

1,525

2

1034

M Race by Erplast

1,422

2

964

Magic F18

1,000

2

678

Mattia 14

1,494

2

1013

Mattia 16

1,257

2

852

Mattia 17

1,045

2

709

Mattia 18 (104)

1,133

2

768

Mattia 18 (104) Spinnaker

1,068

2

724

Mattia 18 F18

1,000

2

678

Mattia 18 Raid Spinnaker

1,027

2

696

Mattia 20

1,058

2

717

Mattia 20 Sloop

1,009

2

684

Mattia 20 Spinnaker

1,034

2

701

Mattia 20 Venti

1,022

2

693

Mattia Declic

1,235

2

837

Mattia Esse

1,095

2

742

Mattia Esse Solo

1,209

1

820

Mattia Esse Sport

1,046

2

709

Mattia Esse Sport Solo

1,091

1

740

Mattia Flash F18

1,000

2

678

Mattia Smile

1,146

2

777

Mattia Smile Sport

1,105

2

749

Miracle 20

1,021

2

692

Miracle 20 (without spinnaker)

1,086

2

736

Mystere 2000  F20

0,992

2

673

Mystere 5.0

1,218

2

826

Mystere 5.0 Xl

1,163

2

789

Mystere 5.5 Fun

1,116

2

757

Mystere 5.5 Master

1,081

2

733

Mystere 5.5 Master Spinnaker

1,024

2

694

Mystere 6.0

0,997

2

676

Mystere Twister F18

1,000

2

678

Nacra 15

1,105

2

749

Nacra 15 FCS

1,082

2

734

Nacra 15 One

1,103

1

748

Nacra F16 One – curved foil

1,044

1

708

Nacra F16 double – curved foil

1,028

2

697

Nacra F16 One

1,066

1

723

Nacra F16 double

1,049

2

711

Nacra 17 « C foils

0,995

2

675

Nacra 17 Olympic Class full foiler

0,982

2

666

Nacra 18M2

1,109

1

752

Nacra F20 Carbon

0,891

2

604

Nacra 20 One Design

0,969

2

657

Nacra F18

1,000

2

678

Nacra 4.5

1,298

2

880

Nacra 4.5 Solo

1,351

1

916

Nacra 460

1,299

2

881

Nacra 460 Solo

1,333

1

904

Nacra 460 Solo Spinnaker

1,242

1

842

Nacra 460 Sport

1,219

2

826

Nacra 5.0 Cat Boat

1,280

1

868

Nacra 5.0 Double

1,185

2

803

Nacra 5.0 Double Spinnaker

1,132

2

767

Nacra 5.2

1,140

2

773

Nacra 5.2 Spinnaker

1,083

2

734

Nacra 5.5 Raid

1,107

2

751

Nacra 5.5 Raid Spinnaker

1,041

2

706

Nacra 5.5 SL

1,085

2

736

Nacra 5.5 SL Spinnaker

1,029

2

698

Nacra 5.7 Race

1,141

2

774

Nacra 5.7 Race Spinnaker

1,090

2

739

Nacra 5.8 Spinnaker

1,022

2

693

Nacra 500 Solo

1,253

1

850

Nacra 500 Solo Spinnaker

1,168

1

792

Nacra 500 Double

1,192

2

808

Nacra 500 Sport Spinnaker

1,123

2

761

Nacra 500 MKII School

1,197

2

812

Nacra 500 MKII School with spinnaker

1,139

2

772

Nacra 500 MKII Sport

1,184

2

803

Nacra 500 MKII Sport with spinnaker

1,126

2

763

Nacra 570 (without spinnaker)

1,112

2

754

Nacra 570 Sport Spinnaker

1,048

2

711

Nacra 580 (without spinnaker)

1,080

2

732

Nacra 580 Sport Spinnaker

1,015

2

688

Nacra 6.0 Spinnaker

0,996

2

675

Nacra 6.0 Raid Spinnaker

1,009

2

684

Nacra 6.0 SE Spinnaker

0,984

2

667

Nacra Blast

1,186

2

804

Nacra F17 Sloop

1,050

2

712

Nacra F17 Solo

1,077

1

730

Nacra 18 FCS

0,968

2

656

Nacra F20 Carbon FCS

0,867

2

588

Nacra Infusion F18

1,000

2

678

Nacra Inter17 Xl Solo

1,200

1

814

Nacra Inter17 Xl Solo Spinnaker

1,108

1

751

Nacra Inter 18 F18

1,000

2

678

Nacra Inter 20 F20

0,973

2

660

New Cat 14

1,428

2

968

New Cat 14 Spinnaker

1,357

2

920

New Cat F1

1,452

2

984

New Cat F1 Spinnaker

1,376

2

933

New Cat F2

1,495

2

1014

New Cat Swing

1,235

2

837

New Marine 16 Swing Cat Boat

1,247

1

845

New Marine 16 Swing Double

1,195

2

810

Paper Tiger

1,350

1

915

Prindle 15

1,345

1

912

Prindle 16

1,264

2

857

Prindle 18

1,169

2

793

Prindle 18-2

1,110

2

753

Prindle 18-2 Spinnaker

1,053

2

714

Prindle 19

1,083

2

734

Prindle 19 Spinnaker

1,014

2

687

Prindle 19 Pacer

1,101

2

746

Prindle 19 Pacer spinnaker

1,020

2

692

Prindle Play Cat

1,318

1

894

Raptor F16

1,031

2

699

RS Cat 14 XL Spinnaker

1,417

2

961

RS Cat 16 Club

1,393

1

944

RS Cat 16 S

1,366

2

926

RS Cat 16 XL

1,286

2

872

S9 Stunt Solo

1,119

1

759

Shadow

1,131

1

767

Shadow X

1,116

1

757

Shearwater

1,279

2

867

Shearwater Spinnaker

1,191

2

807

Shockwave F18

1,000

2

719

678

SL15.5 (KL15.5)

1,236

2

838

SL16

1,141

2

774

SL5.2

1,093

2

741

Spitfire Solo (without jib)

1,087

1

737

Spitfire

1,047

2

710

Spitfire S

1,043

2

707

Sprint 15 DX

1,247

1

845

Stealth F16 Double

1,020

2

692

Stealth F16 Solo

1,023

1

694

Stingray 5.5

1,047

2

710

Supercat 15 Solo

1,241

1

841

Supercat 15 Double

1,174

2

796

Supercat 17

1,099

2

745

Supercat 19

1,064

2

721

Supercat 20

0,991

2

672

Supercat 20 (tall rig)

0,956

2

648

Thundercat 18

1,099

2

745

Tomahawk F20

1,002

2

679

Topaz 14C

1,464

2

993

Topaz 14CX Spinnaker

1,387

2

940

Topaz 14Xtreme

1,290

1

875

Topaz 16C

1,337

2

906

Topaz 16CX

1,262

2

856

Topaz 16S

1,410

2

956

Topaz 16S Spinnaker

1,319

2

894

Topcat 4.5 Solo

1,254

1

850

Topcat Chico

1,785

2

1210

Topcat F1

1,387

1

940

Topcat F2

1,322

2

896

Topcat K1 Classic

1,175

2

797

Topcat K1 Streamcut

1,108

2

751

Topcat K1 Regatta Spinnaker

1,053

2

714

Topcat K2 Classic

1,204

2

816

Topcat K2 Streamcut Regatta

1,164

2

789

Topcat K2 Spinnaker

1,107

2

751

Topcat K2X Classic

1,199

2

813

Topcat K2X Streamcut

1,159

2

786

Topcat K2X Regatta Gennaker

1,097

2

744

Topcat K3 Classic

1,264

2

857

Topcat K3 Streamcut

1,224

2

830

Topcat K3 Regatta Spinnaker (no jib)

1,158

2

785

Topcat K3X Solo Streamcut Jib Spinnaker

1,063

1

721

Topcat K3X Solo Regatta (with gennaker DS)

1,111

1

753

Topcat K4X Solo

1,360

1

922

Topcat K4X Classic (with Jib)

1,372

2

930

Topcat K4x Solo Streamcut (NO jib)

1,326

1

899

Topcat K4x Streamcut (with jib)

1,324

2

898

Topcat K4X (with reacher)

1,261

2

855

Topcat Spifire 2.3

1,140

2

773

Topcat Spitfire 2.5

1,136

2

770

Tornado

0,953

2

646

Tornado 24m2 Spinnaker

0,982

2

666

Tornado Classic

1,055

2

715

Tropic GTI

1,161

2

787

Tropic GTI Spinnaker

1,099

2

745

Unicorn

1,197

1

812

Ventilo 18

1,050

2

712

Ventilo 18 HT

1,018

2

690

Ventilo 609

0,973

2

660

Ventilo Quickie

1,033

1

700

Ventilo Zippo

1,075

2

729

Warp 18

1,162

2

788

Warp 18 Spinnaker

1,098

2

744

Whisper

0,958

2

650