Just out of curiosity, how many times did Laver lose in 1967? Did he play any tours in addition to tournaments (obviously, that would inflate his number of losses)? How detailed are the statistics that we actually have about Laver's 1967 season?
Laver's 1967 record
He lost 26 times, including 19 in tournaments.
Tournaments
Played 33
Won 19
Runner-Up 5
Singles Win-Loss 81-19
Australasian Pro Tour 7-4
Other Pro Tour Matches 6-3
Year Win-Loss 94-26
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Australasian tour
January 31 1967
Toowoomba QLD
Defeated Gonzales 46 63 64
February 6 1967
Rockhampton QLD
Defeated Gonzales 63 810 75
February 7-8 1967
Brisbane
Defeated Ralston 1210 06 62
Defeated Gonzales 62 57 97
February 18-19 1967
Melbourne
Lost to D Ralston 86 26 64
Lost to Gonzales 62 64
February 21 1967
Christchurch
Defeated Ralston 13-11 6-4
February 22 1967
Dunedin
Defeated Gonzales 6-0 7-9 13-11
February 24 1967
Auckland
Defeated Gonzales 6-0 6-3
February 1967
Auckland
Lost to Ralston 6-1 5-7 6-2
Lost to Gonzales 8-6 4-6 7-5
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March 1-5 1967
New York Pro Champs 34st. Armory
1R d. Stolle 6-3 8-6
SF d. Buchholz 9-7 6-8 6-3
F d. Gonzales 7-5 14-16 7-5 6-2
DF Gonzales/Ralston d Laver/Stolle 7-5 3-6 6-3
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March 8-12 1967
San Juan Pro Champs
1R d. Ralston 6-2 6-2
SF d. Buchholz 9-7 6-1
F d. Gimeno 6-4 3-6 6-1
DF Laver/Stolle d Buchholz/Davies 6-3 6-4
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March 15-19 1967
Orlando Pro Champs
1R d. Davies 7-5 6-8 7-5
SF d. Ralston 7-5 4-6 8-6
F d. Gonzales 6-4 2-6 6-0
DF Laver/Stolle d Barthes/Gimeno 4-6 7-5 6-1
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March 21-26 1967
Planters Pro Challenge Cup Miami Beach
1R d. Davies 5-7 6-4 6-2
SF d. Stolle 5-7 6-0 6-3
F d. Gimeno 6-3 6-3
DF Laver/Stolle d Gonzales/Ralston 6-4 3-6 6-4
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March 27-28 1967
Boston Pro Champs
1R d. Stolle 10-8
SF d. Ralston 10-4
F d. Rosewall 6-4 6-0
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March 30-31 1967
Montreal Pro Champs
1R d. Barthes 10-7
SF d. Gonzales 10-7
F d. Ralston 17-15 6-0
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April 5 1967
BBC 2 Pro Champs Wembley World Pro Champs
1R Lost to Ralston 10-7
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April 6-9 1967
Paris Pro Champs
1R BYE
SF d. Stolle 6-3 6-3
F d. Rosewall 6-0 10-8 10-8
DF Laver/Rosewall d Barthes/Stolle 6-3 6-4
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April 1967
Brussels Pro Champs
1R Lost to Ralston 6-3 2-6 8-6
No. 3 Lost to Barthes 6-4 4-6 6-4
DF Ralston/Stolle d Barthes/Laver 8-6 9-7
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April
French pro tour
Lille
d. Barthes 6-3 9-11 6-4
Laver/Ralston d Barthes/Stolle 8-7
Besancon
d. Barthes 4-6 6-4 8-6
Laver/Stolle d Barthes/ Ralston 8-3
Strasbourg
d. Stolle 6-4 9-7
Ralston/Stolle d Barthes/Laver 6-1 7-5
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April
Lyon Pro Champs
1R d. Ralston 7-5 6-2
F Lost to Stolle 6-1 3-6 6-4
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April
Marseille Pro Champs
1R d. Stolle 6-4 6-3
F d. Ralston 6-4 6-3
D Laver/Stolle d Barthes/Ralston 6-3 11-9
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Toulouse
d. Barthes 6-1 6-4
Bordeaux
d. Stolle 4-6 7-5 6-1
Remmes
d. Ralston 2-6 6-3 10-8
Laver won the French tour
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May 10-14 1967
Pacific Pro Champs San Diego
1R BYE
QF d. Barthes 6-4 6-3
SF d. Buchholz 6-3 6-1
F d. Ralston 6-4 12-10
DF Laver/Stolle d Buchholz/Davies 10-5
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May 24-28 1967
Los Angeles Champs
RR
d. Anderson 8-4
d. Segura 8-3
d. Davies 8-6
d. Stewart 8-3
Lost to Ralston 8-6
d. MacKay 8-4
SF d. Buchholz 6-1 6-4
F Lost to Rosewall 6-2 2-6 7-5
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June 1-4 1967
Pacific Coast Champs Berkeley
1R BYE
QF d. Davies 6-0 6-1
SF d. Gimeno 6-8 6-1 6-4
F Lost to Rosewall 4-6 6-3 8-6
DF Ralston/Rosewall d Laver/Stolle 2-6 6-4 6-2
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June 6-9 1967
Madison Square Garden Pro Champs
1R BYE
QF d. Stolle 7-9 6-3 6-4
SF d. Ralston 6-1 6-3
F d. Rosewall 6-4 6-4
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June 14-18 1967
US Hardcourt Champs St.Louis
1R d. Horwitz 6-2 6-2
QF Lost to Stolle 6-3 6-4
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June 21-25 1967
Newport Beach Champs
1R BYE
QF d. Davies 3-6 6-4 6-0
SF d. Gimeno 6-3 6-3
F Lost to Rosewall 6-3 6-3
DF Laver/Stolle d Ralston/Rosewall
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July 1-4 1967
World Pro Champs Oklahoma
1R BYE
QF d. Segura 6-1 6-0
SF d. Gimeno 6-1 3-6 6-3
F d. Rosewall 6-2 3-6 6-4
DF Ralston/Rosewall d Laver /Stolle 10-8
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July 6-9 1967
Cincinnati Champs
1R unknown or BYE
QF d. Olmedo 6-0 8-6
SF Lost to Gimeno 3-6 6-3 6-4
No. 3 d. Ralston 6-1 7-5
DF Laver/Stolle d Ralston/Rosewall
4-6 8-6 7-5
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July 11-16 1967
US Pro Champs Longwood C.C.
1R d. Olmedo 6-1 6-2
QF d. Ayala 6-1 6-2
SF d. Stolle 4-6 6-2 6-3
F d. Gimeno 4-6 6-4 6-3 7-5
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July 18-23 1967
Newport Casino RR
d. Davies 31-23
Lost to MacKay 31-24
d. Stolle 31-28
Lost to Gimeno 31-30
Final stages RR
d. Buchholz 31-16
d. Gimeno 31-27
d. Rosewall 31-20
Final standings
1 Laver 93 points
DF Laver/Stolle d Ralston/Rosewall 31-27
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July 27-30 1967
Binghamton Champs
1R d. Buchholz 6-0 12-10
QF d. Davies 8-6 6-2
SF d. Stolle 6-3 8-6
F d. Gimeno 6-1 6-3
DF Barthes/Gimeno d Laver/Stolle 6-3 6-4
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August 9-13 1967
Colonial Champs Fort Worth
QF d. Olmedo 6-2 6-4
SF d. Gonzales 9-7 6-3
F d. Ralston 8-6 6-0
DF Laver/Stolle d Olmedo/Segura 4-6 6-2 6-2
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August 25-28 1967
Wimbledon World Champs
1R d. Stolle 6-4 6-2
SF d. Gimeno 6-3 6-4
F d. Rosewall 6-2 6-2 12-10
DF Gimeno/Gonzales d Laver/Stolle 6-4 14-12
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South African pro tour
September 1-6 1967
Transvaal Pro Champs
(Pretoria Benoni and Klerksdorp)
1R BYE or unknown
QF d. Barthes 6-2 7-9 6-3
SF Lost to Gimeno 6-4 3-6 6-4
No.3 Lost to Rosewall 6-3 6-2
DF Laver/Stolle d Diepraam/MacKay 6-2 6-4
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September 4 1967
Coca-Cola Challenge Matches Johannesburg
Lost to Stolle 2-6 6-3 7-5
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September 7-10 1967
Natal Pro Champs Durban
1R unknown or BYE
QF d. MacKay 6-1 6-2
SF Lost to Stolle 6-3 3-6 6-1
No. 3 d. Gimeno 6-3 6-3
DF Laver/Stolle d Barthes/Gimeno 6-2 7-5
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September 11 1967
Border Champs East London
1R unknown or BYE
QF d. Davies 8-3
SF Lost to Stolle 10-8
No.3 d. Rosewall 8-5
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September 12 1967
Eastern Province Champs Port Elizabeth
1R BYE or unknown
QF d. Hoad W/O
SF Lost to Gimeno 8-2
No.3 d. Stolle
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September 13-16 1967
Western Province Champs Rondebosch and Cape Town
1R BYE or unknown
QF d. MacKay 6-2 6-1
SF Lost to Stolle 6-4 6-3
DF Laver/Stolle d Buchholz/Rosewall 8-6 6-3
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September 19-23 1967
Johannesburg Champs
1R BYE or unknown
QF d. Barthes 8-6 6-2
SF d. Buchholz 6-2 6-4
F d. Gimeno 6-1 8-6
DF Laver/Stolle d Davies/Rosewall 6-3 6-3
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September 24 1967
Swaziland tour matches Mbabane
Lost to Rosewall 6-2 8-6
Laver/Stolle d Gimeno /Rosewall 6-2 10-8
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October 11-16 1967
French Pro Champs Paris Coubertin
1R BYE or unknown
QF d. MacKay 6-2 3-6 6-4 6-4
SF d. Stolle 4-6 6-3 6-4 6-4
F d. Gimeno 6-4 8-6 4-6 6-2
DF Barthes/Gimeno d Laver/Stolle 6-3 6-4
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October 17-18 1967
Prague Pro Champs
1R d. Buchholz 7-5 3-6 6-1
F Lost to Ralston 7-5 6-1
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October 23-28 1967
London Pro Indoor Champs Wembley
1R bye
QF d. MacKay 6-3 6-1
SF d. Davidson 6-3 3-6 6-2 7-5
F d. Rosewall 2-6 6-1 1-6 8-6 6-2
DF Laver/Stolle d Buchholz/Hoad 7-5 6-3 6-4
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November 2 1967
Nice Pro Match
Lost to Gimeno 61 46 62