16‑Nov‑1981 | Bangkok | Carpet | F | 39 | | (4)Scanlon d. Mats Wilander [SWE] | 6-2 6-3 | | | | | | | | | |
16‑Nov‑1981 | Bangkok | Carpet | SF | 39 | | (4)Scanlon d. Anders Jarryd [SWE] | 6-1 6-2 | | | | | | | | | |
16‑Nov‑1981 | Bangkok | Carpet | QF | 39 | 64 | (4)Scanlon d. (7)John Austin [USA] | 6-3 6-2 | | | | | | | | | |
16‑Nov‑1981 | Bangkok | Carpet | R16 | 39 | | (4)Scanlon d. Chris Mayotte [USA] | 6-2 6-1 | | | | | | | | | |
16‑Nov‑1981 | Bangkok | Carpet | R32 | 39 | | (4)Scanlon d. Panomkorn Pladchunil [THA] | 6-3 6-1 | | | | | | | | | |
9‑Nov‑1981 | Taipei | Carpet | R16 | 40 | | Mike Estep [USA] d. (5)Scanlon | 6-3 6-2 | | | | | | | | | |
9‑Nov‑1981 | Taipei | Carpet | R32 | 40 | | (5)Scanlon d. Chris Mayotte [USA] | 6-7 6-3 6-2 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | R16 | 39 | | Marty Davis [USA] d. (3)Scanlon | 6-3 7-5 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | R32 | 39 | | (3)Scanlon d. Tony Graham [USA] | 6-1 7-6 | | | | | | | | | |
26‑Oct‑1981 | Tokyo Indoor | Carpet | QF | 29 | 1 | (1)John Mcenroe [USA] d. Scanlon | 6-4 6-3 | | | | | | | | | |
26‑Oct‑1981 | Tokyo Indoor | Carpet | R16 | 29 | | Scanlon d. (LL)Chris Dunk [USA] | 6-2 4-6 6-1 | | | | | | | | | |
26‑Oct‑1981 | Tokyo Indoor | Carpet | R32 | 29 | 48 | Scanlon d. Ricardo Cano [ARG] | 6-1 6-4 | | | | | | | | | |
29‑Sep‑1981 | Maui | Hard | SF | 36 | 40 | (5)Tim Mayotte [USA] d. (3)Scanlon | 6-3 7-5 | | | | | | | | | |
29‑Sep‑1981 | Maui | Hard | QF | 36 | 86 | (3)Scanlon d. Nick Saviano [USA] | 6-4 6-4 | | | | | | | | | |
29‑Sep‑1981 | Maui | Hard | R16 | 36 | | (3)Scanlon d. Robert Vant Hof [USA] | 7-6 7-5 | | | | | | | | | |
29‑Sep‑1981 | Maui | Hard | R32 | 36 | | (3)Scanlon d. Marty Davis [USA] | 6-4 6-1 | | | | | | | | | |
21‑Sep‑1981 | San Francisco | Carpet | SF | 36 | 9 | (5)Eliot Teltscher [USA] d. (15)Scanlon | 6-0 6-3 | | | | | | | | | |
21‑Sep‑1981 | San Francisco | Carpet | QF | 36 | 1 | (15)Scanlon d. (1)John Mcenroe [USA] | 3-6 7-6 6-2 | | | | | | | | | |
21‑Sep‑1981 | San Francisco | Carpet | R16 | 36 | 11 | (15)Scanlon d. (7)Peter Mcnamara [AUS] | 3-6 6-3 6-1 | | | | | | | | | |
21‑Sep‑1981 | San Francisco | Carpet | R32 | 36 | | (15)Scanlon d. Scott Mccain [USA] | 6-2 6-4 | | | | | | | | | |
1‑Sep‑1981 | US Open | Hard | R128 | 35 | 10 | (10)Brian Teacher [USA] d. Scanlon | 6-3 6-2 7-5 | | | | | | | | | |
17‑Aug‑1981 | Cincinnati | Hard | QF | 35 | 74 | Chris Lewis Nzl [NZL] d. (WC)Scanlon | 6-3 1-6 6-3 | | | | | | | | | |
17‑Aug‑1981 | Cincinnati | Hard | R16 | 35 | | (WC)Scanlon d. (Q)Nduka Odizor [NGR] | 6-3 6-2 | | | | | | | | | |
17‑Aug‑1981 | Cincinnati | Hard | R32 | 35 | | (WC)Scanlon d. Ramesh Krishnan [IND] | 6-3 6-3 | | | | | | | | | |
17‑Aug‑1981 | Cincinnati | Hard | R64 | 35 | 23 | (WC)Scanlon d. (13)Vijay Amritraj [IND] | 6-4 7-5 | | | | | | | | | |
20‑Jul‑1981 | Washington | Clay | R64 | 40 | | Jimmy Arias [USA] d. (16)Scanlon | 6-2 6-4 | | | | | | | | | |
22‑Jun‑1981 | Wimbledon | Grass | R64 | 39 | 81 | John Fitzgerald [AUS] d. Scanlon | 6-1 6-2 6-2 | | | | | | | | | |
22‑Jun‑1981 | Wimbledon | Grass | R128 | 39 | 14 | Scanlon d. (11)Victor Pecci [PAR] | 7-6 6-0 6-0 | | | | | | | | | |
13‑Jun‑1981 | Bristol | Grass | R16 | 38 | 67 | Tim Gullikson [USA] d. (5)Scanlon | 7-5 6-1 | | | | | | | | | |
13‑Jun‑1981 | Bristol | Grass | R32 | 38 | | (5)Scanlon d. Robert Reininger [AUT] | 6-3 6-0 | | | | | | | | | |
8‑Jun‑1981 | Queen's Club | Grass | R16 | 38 | 2 | (1)John Mcenroe [USA] d. (9)Scanlon | 6-3 6-2 | | | | | | | | | |
8‑Jun‑1981 | Queen's Club | Grass | R32 | 38 | 61 | (9)Scanlon d. Peter Fleming [USA] | 6-2 6-3 | | | | | | | | | |
8‑Jun‑1981 | Queen's Club | Grass | R64 | 38 | | (9)Scanlon d. Ross Case [AUS] | 6-4 3-6 6-3 | | | | | | | | | |
4‑May‑1981 | Forest Hills WCT | Clay | R64 | 38 | 93 | Angel Gimenez [ESP] d. Scanlon | 6-3 6-2 | | | | | | | | | |
20‑Apr‑1981 | Las Vegas | Hard | R32 | 38 | 15 | (5)Brian Teacher [USA] d. Scanlon | 6-1 6-3 | | | | | | | | | |
13‑Apr‑1981 | Los Angeles | Hard | SF | 33 | 2 | (1)John Mcenroe [USA] d. (4)Scanlon | 6-3 6-3 | | | | | | | | | |
13‑Apr‑1981 | Los Angeles | Hard | QF | 33 | | (4)Scanlon d. Walter Redondo [USA] | 6-4 6-3 | | | | | | | | | |
13‑Apr‑1981 | Los Angeles | Hard | R16 | 33 | 74 | (4)Scanlon d. Mark Edmondson [AUS] | 6-1 6-3 | | | | | | | | | |
13‑Apr‑1981 | Los Angeles | Hard | R32 | 33 | | (4)Scanlon d. Sherwood Stewart [USA] | 6-1 6-4 | | | | | | | | | |
23‑Mar‑1981 | Milan | Carpet | R16 | 27 | 1 | (1)Bjorn Borg [SWE] d. Scanlon | 6-1 5-7 6-3 | | | | | | | | | |
23‑Mar‑1981 | Milan | Carpet | R32 | 27 | 62 | Scanlon d. Christophe Roger Vasselin [FRA] | 6-2 6-2 | | | | | | | | | |
16‑Mar‑1981 | Rotterdam | Hard | R16 | 31 | 40 | Sandy Mayer [USA] d. Scanlon | 6-7 6-3 6-2 | | | | | | | | | |
16‑Mar‑1981 | Rotterdam | Hard | R32 | 31 | 56 | Scanlon d. Andres Gomez [ECU] | 6-3 6-0 | | | | | | | | | |
9‑Mar‑1981 | Brussels | Carpet | R32 | 28 | 14 | (4)Brian Gottfried [USA] d. Scanlon | 4-6 6-2 6-3 | | | | | | | | | |
2‑Mar‑1981 | Salisbury WCT | Carpet | F | 28 | 19 | Scanlon d. Vijay Amritraj [IND] | 3-6 6-2 6-4 3-6 6-4 | | | | | | | | | |
2‑Mar‑1981 | Salisbury WCT | Carpet | RR | 28 | 57 | Scanlon d. Manuel Orantes [ESP] | 3-6 6-2 6-2 | | | | | | | | | |
2‑Mar‑1981 | Salisbury WCT | Carpet | RR | 28 | 16 | Scanlon d. Eddie Dibbs [USA] | 7-5 7-6 | | | | | | | | | |
2‑Mar‑1981 | Salisbury WCT | Carpet | RR | 28 | 19 | Scanlon d. Vijay Amritraj [IND] | 6-4 6-3 | | | | | | | | | |
2‑Mar‑1981 | Salisbury WCT | Carpet | RR | 28 | 9 | Scanlon d. Harold Solomon [USA] | 6-2 6-4 | | | | | | | | | |
23‑Feb‑1981 | Memphis | Carpet | R64 | 26 | 67 | Tom Gullikson [USA] d. (13)Scanlon | 6-2 7-6 | | | | | | | | | |
2‑Feb‑1981 | Richmond WCT | Carpet | R32 | 25 | 36 | Raul Ramirez [MEX] d. Scanlon | 6-2 6-4 | | | | | | | | | |
26‑Jan‑1981 | Philadelphia | Carpet | R64 | 24 | 67 | Butch Walts [USA] d. (15)Scanlon | 7-6 6-3 | | | | | | | | | |
19‑Jan‑1981 | Guaruja | Hard | QF | 24 | 90 | Kjell Johansson [SWE] d. (2)Scanlon | 7-5 6-3 | | | | | | | | | |
19‑Jan‑1981 | Guaruja | Hard | R16 | 24 | 73 | (2)Scanlon d. Hank Pfister [USA] | 6-2 0-1 RET | | | | | | | | | |
19‑Jan‑1981 | Guaruja | Hard | R32 | 24 | | (2)Scanlon d. Joao Soares [BRA] | 6-2 6-0 | | | | | | | | | |
5‑Jan‑1981 | Auckland | Hard | F | 25 | 95 | (1)Scanlon d. (5)Tim Wilkison [USA] | 6-7 6-3 3-6 7-6 6-0 | | | | | | | | | |
5‑Jan‑1981 | Auckland | Hard | SF | 25 | 96 | (1)Scanlon d. (6)Onny Parun [NZL] | 6-4 7-6 | | | | | | | | | |
5‑Jan‑1981 | Auckland | Hard | QF | 25 | | (1)Scanlon d. (8)Chris Mayotte [USA] | 7-6 6-1 | | | | | | | | | |
5‑Jan‑1981 | Auckland | Hard | R16 | 25 | | (1)Scanlon d. Mike Estep [USA] | 6-0 6-3 | | | | | | | | | |
5‑Jan‑1981 | Auckland | Hard | R32 | 25 | | (1)Scanlon d. Steve Docherty [AUS] | 5-7 6-3 7-5 | | | | | | | | | |