🇸🇪 SANDIN Alexander · SWEDEN

26rank
+140.4Butler · 270 bds
+0.52per board
±4.4swing
+0.51vs par /bd · #24/98
+0.60adjusted /bd
Butler per round: 26.7 35.3 3.5 11.8 10.8 -11.3 17.4 28.4 29.6 -19.8 34.4 -29.3 -20.3 30.4 -7.2by round

vs par split: bidding -0.43 · play +0.93

Strength of schedule: opponents averaged +0.08/bd (a tough draw) → opponent-adjusted +0.60/bd

Card play — on target: opening leads 83.6% #18 of 98 · declarer play 85.0% #6 of 98 · defence 91.3% #3 of 98

Bidding activity — not a pass: 43.5% #41 of 98 (344/790)

Card play by contract type — on target
vs NTvs a suit
Opening leads73.3% (15)86.2% (58)
Declarer play80.0% (20)87.5% (40)
Defence91.7% (36)91.2% (102)

Opening leads by suit led: ♠ 86.4% (22) · ♥ 87.5% (16) · ♦ 89.5% (19) · ♣ 68.8% (16)

vs par by strain: NT -0.10 (77) · a suit +0.75 (193)

vs par by level: part-score -0.16 (105) · game +0.99 (147) · slam +0.50 (18)

By role: declaring +0.56/bd (-1.51 vs par · 132) · defending +0.48/bd (+2.44 vs par · 138)

By vulnerability: vulnerable +0.26/bd (+0.22 vs par · 128) · not vulnerable +0.76/bd (+0.77 vs par · 142)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1S.ClementssonD.Mackillop – M.KennedyOpen18+26.7+1.48+0.33
Round 2S.ClementssonS.Jesse – L.VornkahlClosed18+35.3+1.96+3.22
Round 3S.ClementssonG.Teneva – N.YaninskiOpen18+3.5+0.19-1.11
Round 5S.ClementssonM.Lund – N.Heiberg-EvenstadOpen18+11.8+0.66+1.33
Round 6S.ClementssonR.Barons – R.RubinsOpen18+10.8+0.60-0.72
Round 7S.ClementssonM.Fragola – N.TabataOpen18-11.3-0.63-2.33
Round 8S.ClementssonN.Khutorsky – A.ZeitakOpen18+17.4+0.97-0.28
Round 10S.ClementssonT.Piibeleht – R.MaideOpen18+28.4+1.58+1.61
Round 11S.ClementssonG.Donati – F.PortaClosed18+29.6+1.64+1.06
Round 12S.ClementssonT.Van De Paverd – O.NijssenOpen18-19.8-1.10-1.72
Round 13S.ClementssonP.Skordas – D.KapirisOpen18+34.4+1.91+2.89
Round 14S.ClementssonJ.Jalsovszky – M.VagiOpen18-29.3-1.63-1.00
Round 15S.ClementssonE.Evacic – I.BilusicClosed18-20.3-1.13+0.39
Round 16S.ClementssonO.Kadioglu – C.OzgezOpen18+30.4+1.69+3.89
Round 17S.ClementssonJ.Bazyluk – T.KielbasaOpen18-7.2-0.40+0.06

Every board — best Butler first↑ top

vs par = IMPs this pair scored above (+) or below (−) the board’s double-dummy par — what bidding and play (theirs and the opponents’) added or gave away against perfect play.

ButlerRoundOpponentsBdContractLeadResvs par
+13.8Round 11🇮🇹 ITALY44♠x♥K=+14
+12.5Round 14🇭🇺 HUNGARY117♦♠3-1+14
+10.9Round 2🇩🇪 GERMANY144♠x♣T=+5
+10.7Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND112♥x♠A=+11
+10.6Round 11🇮🇹 ITALY26♥♣4-1+14
+10.4Round 10🇪🇪 ESTONIA95♦♣7-4+11
+9.9Round 16🇹🇷 TURKIYE42♠♣9-1+16
+9.4Round 2🇩🇪 GERMANY114♠x♣A=+10
+9.1Round 15🇭🇷 CROATIA124♥♣J+1+11
+8.4Round 10🇪🇪 ESTONIA123NT♣8=+0
+8.0Round 13🇬🇷 GREECE154♠x♣5-2+5
+7.5Round 10🇪🇪 ESTONIA83NT♠9+1+7
+7.4Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND33♠♦K-1+10
+7.4Round 16🇹🇷 TURKIYE123NT♠Q+1+7
+7.3Round 2🇩🇪 GERMANY123NT♦Q=+0
+7.3Round 13🇬🇷 GREECE73NT♥7=+0
+7.2Round 11🇮🇹 ITALY54♥x♠6=+7
+7.1Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND73♥♦K-3+9
+7.1Round 6🇱🇻 LATVIA94♠♥A-1+10
+6.9Round 10🇪🇪 ESTONIA72♥♠J+1+6
+6.8Round 8🇮🇱 ISRAEL74♥♣A-1+6
+6.7Round 16🇹🇷 TURKIYE16♣x♥Q-2+12
+6.6Round 6🇱🇻 LATVIA152♠♣2-2+8
+6.5Round 2🇩🇪 GERMANY14♠♠A=+11
+6.2Round 2🇩🇪 GERMANY63NT♥T-1+6
+6.2Round 16🇹🇷 TURKIYE174NT♦T+1+1
+6.1Round 8🇮🇱 ISRAEL164♠♥8-1+12
+6.0Round 13🇬🇷 GREECE63NT♠4-2+7
+5.9Round 3🇧🇬 BULGARIA53NT♣2=+10
+5.9Round 12🇳🇱 NETHERLANDS34♥x♦2-3+8
+5.7Round 16🇹🇷 TURKIYE23NT♣A-1+6
+5.6Round 6🇱🇻 LATVIA103♠♥7-2+7
+5.5Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND12NT♠4-3+7
+5.5Round 13🇬🇷 GREECE133NT♦Q+3+13
+5.4Round 5🇳🇴 NORWAY132NT♦Q-1+6
+5.3Round 10🇪🇪 ESTONIA103♠♦Q-2+2
+5.3Round 17🇵🇱 POLAND114♠♥A=+0
+5.2Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND134♥x♥T-1+2
+5.1Round 2🇩🇪 GERMANY103NT♠J=+0
+5.1Round 6🇱🇻 LATVIA64♠♦Q-1+10
+5.1Round 7🇫🇷 FRANCE23NT♥4-1+10
+5.0Round 7🇫🇷 FRANCE176♣♠K=+0
+5.0Round 16🇹🇷 TURKIYE94♥♠A-2+11
+4.7Round 8🇮🇱 ISRAEL32♠♠4+2+2
+4.7Round 11🇮🇹 ITALY153NT♦6-2+11
+4.7Round 17🇵🇱 POLAND134♠x♦A-2+0
+4.6Round 5🇳🇴 NORWAY154♠♣8-2+3
+4.5Round 10🇪🇪 ESTONIA162♠♦T+1+6
+4.5Round 13🇬🇷 GREECE32♠♥A-2+8
+4.5Round 13🇬🇷 GREECE146♦♠K+1-2
+4.5Round 13🇬🇷 GREECE175♣♠6=+7
+4.4Round 5🇳🇴 NORWAY111NT♥Q-4+7
+4.3Round 5🇳🇴 NORWAY34♥♠T-1+5
+4.2Round 5🇳🇴 NORWAY93NT♠2-1+5
+4.2Round 8🇮🇱 ISRAEL55♦♥A-1+5
+4.1Round 6🇱🇻 LATVIA22♥♣A+1+0
+4.1Round 17🇵🇱 POLAND176♠♦A=+0
+4.0Round 8🇮🇱 ISRAEL183NT♥K=-1
+3.9Round 5🇳🇴 NORWAY84♠♥A+2+11
+3.9Round 11🇮🇹 ITALY105♦♣3-2+2
+3.8Round 12🇳🇱 NETHERLANDS43♥♠K+1+10
+3.7Round 7🇫🇷 FRANCE91♠♣K=+5
+3.7Round 16🇹🇷 TURKIYE63NT♠6+2+0
+3.6Round 3🇧🇬 BULGARIA134♥♠T+1+0
+3.6Round 17🇵🇱 POLAND84♣♠Q+1+4
+3.5Round 12🇳🇱 NETHERLANDS153NT♠A+1-10
+3.3Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND173♣♦K=+5
+3.3Round 8🇮🇱 ISRAEL82♠♥9=+5
+3.2Round 16🇹🇷 TURKIYE73♣♠5+1+1
+3.1Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND22♠♥6=+0
+3.1Round 6🇱🇻 LATVIA112♠♣6-3+0
+3.1Round 15🇭🇷 CROATIA114♠♠4-1+5
+2.9Round 6🇱🇻 LATVIA142♠♥A-2+5
+2.9Round 11🇮🇹 ITALY125♦♣2=+3
+2.8Round 6🇱🇻 LATVIA123NT♥K=-1
+2.8Round 16🇹🇷 TURKIYE151NT♦T=-1
+2.8Round 17🇵🇱 POLAND93♦♦J-2+6
+2.6Round 6🇱🇻 LATVIA33NT♠T-2+0
+2.6Round 12🇳🇱 NETHERLANDS165♣♦2+1+11
+2.5Round 3🇧🇬 BULGARIA62♥♠9=+0
+2.5Round 3🇧🇬 BULGARIA84♠♦6+1+0
+2.4Round 2🇩🇪 GERMANY83♠♠6+1+2
+2.4Round 8🇮🇱 ISRAEL121NT♣2-1-1
+2.4Round 11🇮🇹 ITALY73NT♣8+3+1
+2.4Round 16🇹🇷 TURKIYE141NT♦6-1+5
+2.2Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND93NT♣J=+3
+2.2Round 16🇹🇷 TURKIYE183NT♠9-2+8
+2.2Round 17🇵🇱 POLAND124♥♠9+1+16
+2.1Round 12🇳🇱 NETHERLANDS22♦♣8=-1
+2.1Round 13🇬🇷 GREECE23♦♣5+2+2
+2.1Round 16🇹🇷 TURKIYE136NT♥6=+0
+1.9Round 5🇳🇴 NORWAY176♥♦A=+0
+1.9Round 12🇳🇱 NETHERLANDS86♦♠T=-2
+1.8Round 7🇫🇷 FRANCE124♥♣8-2+0
+1.8Round 14🇭🇺 HUNGARY31♠♥K-2+2
+1.6Round 3🇧🇬 BULGARIA104♠♣7+2+1
+1.5Round 2🇩🇪 GERMANY33NT♥5-1+6
+1.5Round 3🇧🇬 BULGARIA184♦♠A-2+6
+1.5Round 14🇭🇺 HUNGARY62♠♦7-1+0
+1.5Round 15🇭🇷 CROATIA26♦♥6=-2
+1.4Round 8🇮🇱 ISRAEL14♠♦T+1+0
+1.3Round 10🇪🇪 ESTONIA43♣♥5-1-9
+1.2Round 10🇪🇪 ESTONIA144♥♠2=+3
+1.2Round 14🇭🇺 HUNGARY104NT♥J+1+0
+1.2Round 17🇵🇱 POLAND102♠♣K+2-1
+1.1Round 11🇮🇹 ITALY94♥♠3=+13
+1.1Round 13🇬🇷 GREECE93NT♣Q+2-10
+1.1Round 13🇬🇷 GREECE104♥♣K+1+1
+1.1Round 14🇭🇺 HUNGARY94♠♥Q=+0
+1.0Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND83♦♥A-1-2
+1.0Round 3🇧🇬 BULGARIA73NT♣2=-2
+1.0Round 10🇪🇪 ESTONIA21NT♠J-1-3
+1.0Round 12🇳🇱 NETHERLANDS64♥♦6=-1
+1.0Round 12🇳🇱 NETHERLANDS123NT♠2+1-1
+0.9Round 5🇳🇴 NORWAY45♥♣Q=+0
+0.9Round 11🇮🇹 ITALY133♥♠T-2-3
+0.9Round 13🇬🇷 GREECE52♥♦Q+1+0
+0.9Round 17🇵🇱 POLAND72♠♥2+1+0
+0.8Round 5🇳🇴 NORWAY121NT♣3-1+3
+0.8Round 7🇫🇷 FRANCE84♠♥A+1+0
+0.8Round 8🇮🇱 ISRAEL43♠♦4=+1
+0.8Round 8🇮🇱 ISRAEL63♦♣5-1-7
+0.7Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND124♥♥8=+0
+0.7Round 7🇫🇷 FRANCE34♥♣5+2+1
+0.7Round 7🇫🇷 FRANCE154♥♦7+2-13
+0.6Round 2🇩🇪 GERMANY24♥♦Q+1+11
+0.6Round 3🇧🇬 BULGARIA44♥♦A+2+1
+0.6Round 6🇱🇻 LATVIA184♥♦J=+0
+0.6Round 11🇮🇹 ITALY33NT♠2+1+0
+0.5Round 2🇩🇪 GERMANY152♥♣9+1+7
+0.5Round 5🇳🇴 NORWAY51NT♦T=-1
+0.5Round 7🇫🇷 FRANCE14♥♠A-1+4
+0.5Round 7🇫🇷 FRANCE64♥♣8-1+6
+0.5Round 8🇮🇱 ISRAEL154♥♦T+1+0
+0.5Round 15🇭🇷 CROATIA103♦x♠K-1+2
+0.4Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND181NT♦T-2-5
+0.4Round 7🇫🇷 FRANCE141NT♣6+1-1
+0.3Round 2🇩🇪 GERMANY131NT♣K=+1
+0.3Round 3🇧🇬 BULGARIA144♠♣J=+0
+0.3Round 11🇮🇹 ITALY164♠♦6=-1
+0.3Round 12🇳🇱 NETHERLANDS184♥♦9+1+0
+0.3Round 15🇭🇷 CROATIA135♦x♣K-1+9
+0.2Round 10🇪🇪 ESTONIA132♠♦6=+6
+0.2Round 13🇬🇷 GREECE43NT♠6+2+0
+0.1Round 5🇳🇴 NORWAY73NT♣Q+1-12
+0.1Round 15🇭🇷 CROATIA73NT♠T+1+1
+0.0Round 2🇩🇪 GERMANY94♠♥J+2-11
+0.0Round 13🇬🇷 GREECE184♥♣K+1+0
-0.1Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND153NT♠4+2+0
-0.1Round 2🇩🇪 GERMANY51NT♥A-2+5
-0.1Round 6🇱🇻 LATVIA84♠♥A+1-11
-0.1Round 7🇫🇷 FRANCE104♥x♦A-1-7
-0.1Round 11🇮🇹 ITALY113♣♠4+1+0
-0.1Round 16🇹🇷 TURKIYE113NT♦Q+1+0
-0.2Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND53NT♠6+2+0
-0.2Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND161♠♣9-1+0
-0.2Round 2🇩🇪 GERMANY184♠♦T-1+5
-0.2Round 3🇧🇬 BULGARIA114♥♣A+1+0
-0.2Round 6🇱🇻 LATVIA13♦♣A=-8
-0.2Round 8🇮🇱 ISRAEL103NT♠9+1+1
-0.2Round 8🇮🇱 ISRAEL175♣♠Q=+3
-0.2Round 10🇪🇪 ESTONIA64♥♠6+2+13
-0.2Round 17🇵🇱 POLAND13NT♦6+2+0
-0.3Round 10🇪🇪 ESTONIA154♠♥3-1-6
-0.4Round 14🇭🇺 HUNGARY163♣♦A+1+0
-0.4Round 17🇵🇱 POLAND22♠♦9-1+1
-0.5Round 3🇧🇬 BULGARIA24♥♥2=+0
-0.5Round 3🇧🇬 BULGARIA32NT♣J+2-6
-0.6Round 11🇮🇹 ITALY14♠♣J+2-11
-0.6Round 14🇭🇺 HUNGARY171NT♣3-1-9
-0.6Round 15🇭🇷 CROATIA94♦♥6=+8
-0.7Round 15🇭🇷 CROATIA13♣♠T+1+0
-0.7Round 15🇭🇷 CROATIA34♥♠K+2+11
-0.8Round 5🇳🇴 NORWAY164♥♣A+1+0
-0.8Round 13🇬🇷 GREECE84♥♦9+1+0
-0.8Round 15🇭🇷 CROATIA54♥♠A+1-4
-0.9Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND61NT♠2=-1
-0.9Round 2🇩🇪 GERMANY162♠♥Q-1+0
-0.9Round 6🇱🇻 LATVIA54♠♦3=-3
-0.9Round 8🇮🇱 ISRAEL113NT♣8-1-5
-0.9Round 12🇳🇱 NETHERLANDS112♥♣A+1+0
-0.9Round 16🇹🇷 TURKIYE53NT♥5+2+12
-1.0Round 3🇧🇬 BULGARIA123♥♦K+1-7
-1.1Round 3🇧🇬 BULGARIA172♥♦6-2-5
-1.1Round 10🇪🇪 ESTONIA33♠♣K+2+2
-1.1Round 14🇭🇺 HUNGARY153NT♦J-1-12
-1.1Round 15🇭🇷 CROATIA144♠♦5=+1
-1.2Round 10🇪🇪 ESTONIA13♦♣T+2+0
-1.2Round 12🇳🇱 NETHERLANDS143♦♠A-2+1
-1.5Round 5🇳🇴 NORWAY23♣♠2+2+1
-1.5Round 8🇮🇱 ISRAEL133NT♠3-2-8
-1.5Round 12🇳🇱 NETHERLANDS12♥♦6+2-6
-1.5Round 15🇭🇷 CROATIA44♠♥3=+1
-1.6Round 7🇫🇷 FRANCE72♠♣Q+2-10
-1.6Round 7🇫🇷 FRANCE134♠♥7=-3
-1.6Round 7🇫🇷 FRANCE185♦♣5+1-13
-1.6Round 15🇭🇷 CROATIA83NT♦K+1+0
-1.6Round 17🇵🇱 POLAND51NT♦Q=+0
-1.7Round 12🇳🇱 NETHERLANDS174♠x♣6-1+5
-1.8Round 14🇭🇺 HUNGARY73NT♦4-1-6
-1.8Round 17🇵🇱 POLAND152♠♦A=+0
-1.8Round 17🇵🇱 POLAND164♠♣8=+1
-1.9Round 13🇬🇷 GREECE15♣♥K=+9
-1.9Round 13🇬🇷 GREECE114♦♣A-2+1
-2.1Round 2🇩🇪 GERMANY72♠♦J+2-1
-2.1Round 11🇮🇹 ITALY62♠♦K+1+0
-2.1Round 14🇭🇺 HUNGARY42♠♥A=+0
-2.1Round 17🇵🇱 POLAND182♥♣J+1+0
-2.2Round 6🇱🇻 LATVIA73♥♣K-1-5
-2.2Round 10🇪🇪 ESTONIA114♥♦Q+2+8
-2.3Round 15🇭🇷 CROATIA153NT♦K+3-14
-2.4Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND43NT♠9+1-10
-2.4Round 3🇧🇬 BULGARIA93NT♠6+2+0
-2.4Round 5🇳🇴 NORWAY14♦x♥4-2-3
-2.4Round 14🇭🇺 HUNGARY23♥♦T-2-3
-2.5Round 8🇮🇱 ISRAEL142♥♣K-1-3
-2.6Round 2🇩🇪 GERMANY174♣♠2=+0
-2.6Round 3🇧🇬 BULGARIA13♠♣A=-1
-2.6Round 13🇬🇷 GREECE122♥♣4+1-1
-2.7Round 7🇫🇷 FRANCE114NT♦4=+1
-2.9Round 14🇭🇺 HUNGARY84♥♠7+1+0
-3.0Round 6🇱🇻 LATVIA132♠♥9=+1
-3.1Round 5🇳🇴 NORWAY184♠♥7+1+0
-3.1Round 11🇮🇹 ITALY173NT♠A-1-10
-3.2Round 5🇳🇴 NORWAY66♥♠4=+11
-3.2Round 10🇪🇪 ESTONIA186♠♠8=-5
-3.2Round 14🇭🇺 HUNGARY133♦♠2+1+0
-3.3Round 12🇳🇱 NETHERLANDS56♠♣J=-8
-3.4Round 11🇮🇹 ITALY81NT♠2=-5
-3.6Round 11🇮🇹 ITALY182♥♣2-1-6
-3.8Round 3🇧🇬 BULGARIA163NT♠2=-10
-3.8Round 10🇪🇪 ESTONIA53♠♦J-1-2
-3.9Round 3🇧🇬 BULGARIA154♠♣2=-7
-3.9Round 12🇳🇱 NETHERLANDS94♠♥K=+0
-4.0Round 5🇳🇴 NORWAY144♠♥4-3-2
-4.1Round 13🇬🇷 GREECE163NT♥K+3+12
-4.2Round 5🇳🇴 NORWAY102♠♦9+3-10
-4.2Round 8🇮🇱 ISRAEL23♠♦5=-6
-4.4Round 16🇹🇷 TURKIYE32♥♦8=+0
-4.6Round 17🇵🇱 POLAND65♣x♠8-1-8
-4.8Round 15🇭🇷 CROATIA183NT♥3+1-4
-4.9Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND146♣♦6-1-14
-4.9Round 14🇭🇺 HUNGARY14♠♥9=+0
-4.9Round 17🇵🇱 POLAND43♣♥2=-12
-5.2Round 7🇫🇷 FRANCE47NT♦7=+0
-5.5Round 6🇱🇻 LATVIA161NT♠Q-4+1
-5.8Round 12🇳🇱 NETHERLANDS75♣♠A-1-12
-5.8Round 15🇭🇷 CROATIA175♦♣6=+0
-5.9Round 11🇮🇹 ITALY144♠x♣8+2-10
-5.9Round 15🇭🇷 CROATIA65♦x♥A-2-5
-6.1Round 17🇵🇱 POLAND143♠♦A-1+2
-6.3Round 10🇪🇪 ESTONIA173NT♦7-1-10
-6.5Round 6🇱🇻 LATVIA173♠♠9=-15
-6.5Round 14🇭🇺 HUNGARY147♣♣2=+2
-6.5Round 16🇹🇷 TURKIYE164♥x♣Q-1-8
-6.6Round 14🇭🇺 HUNGARY54♥♣2=+0
-7.0Round 14🇭🇺 HUNGARY124♠x♥A-3-8
-7.4Round 16🇹🇷 TURKIYE83NT♦T+1+0
-7.6Round 16🇹🇷 TURKIYE103NT♥8=+0
-7.9Round 14🇭🇺 HUNGARY186♣♦6=+2
-8.1Round 8🇮🇱 ISRAEL94♠x♦A-3-9
-8.5Round 17🇵🇱 POLAND33♠♦Q+1-8
-8.6Round 7🇫🇷 FRANCE163♣x♣9-3-9
-9.1Round 7🇫🇷 FRANCE53NT♦Q-2-13
-9.1Round 15🇭🇷 CROATIA166♥♣K-1-13
-9.5Round 2🇩🇪 GERMANY43NT♠4=+1
-10.5Round 12🇳🇱 NETHERLANDS133♣♠7-1-12
-11.2Round 1🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND103♠x♣J-2-9
-11.3Round 6🇱🇻 LATVIA43♦x♠7-2-12
-13.1Round 12🇳🇱 NETHERLANDS102♠x♣K+1-13