thumb|Maurice McLoughlin (1890-1957), [[Henry Ward Dawson (1890-1963), William Johnston (1894-1946), Clarence Griffin (1888-1973) on August 30, 1916 at the national men's doubles championship.]]
thumb|248px|McLoughlin vs. [[Melville H. Long on September 9, 1911 at The Championships, Wimbledon ]]
Maurice Evans McLoughlin (January 7, 1890 – December 10, 1957) was an American tennis player. Known for his powerful serve, overhead, and volley, McLoughlin was the first male tennis champion from the western United States.
At the U.S. Championships, he won the singles twice, 1912 and 1913, and the doubles three times with Thomas Bundy, 1912-1914. In 1913 he also became the first American to be a finalist in the singles at Wimbledon when he defeated Stanley Doust in the final of the All-Comers tournament. He lost the Challenge Round in straight sets to defending champion Anthony Wilding.
The "California Comet" was the World No. 1 player for 1914. He married Helen Mears in 1918 and they had three children.
He died on December 10, 1957, in Hermosa Beach, California.
Legacy
In 1915, McLoughlin published an instructional tennis book titled Tennis as I Play It, ghostwritten by Sinclair Lewis.
McLoughlin was inducted into the International Tennis Hall of Fame in Newport, Rhode Island in 1957.
Grand Slam finals
Singles: (2 titles, 4 runner-up)
{|class="sortable wikitable"
!Result
!Year
!style="width:190px"|Championship
!Surface
!style="width:170px"|Opponent
!style="width:160px" class="unsortable"|Score
|-
| style="background:#ffa07a;"|Loss || 1911 || style="background:#ccf;"|U.S. National Championships || Grass || William Larned || 4–6, 4–6, 2–6
|-
| style="background:#98fb98;"|Win || 1912 || style="background:#ccf;"|U.S. National Championships || Grass || Wallace F. Johnson || 3–6, 2–6, 6–2, 6–4, 6–2
|-
| style="background:#ffa07a;"|Loss || 1913 || style="background:#cfc;"|Wimbledon || Grass || Anthony Wilding || 6–8, 3–6, 8–10
|-
| style="background:#98fb98;"|Win || 1913 || style="background:#ccf;"|U.S. National Championships || Grass || Richard Norris Williams || 6–4, 5–7, 6–3, 6–1
|-
| style="background:#ffa07a;"|Loss || 1914 || style="background:#ccf;"|U.S. National Championships || Grass || Richard Norris Williams || 3–6, 6–8, 8–10
|-
| style="background:#ffa07a;"|Loss || 1915 || style="background:#ccf;"|U.S. National Championships || Grass || Bill Johnston || 6–1, 0–6, 5–7, 8–10
|}
Doubles (3 titles, 2 runner-ups)
{|class="sortable wikitable"
!Result
!Year
!style="width:190px"|Championship
!Surface
!style="width:170px"|Partner
!style="width:170px"|Opponents
!style="width:160px" class="unsortable"|Score
|-
| style="background:#98fb98;"|Win || 1912 || style="background:#ccf;"|U.S. National Championships || Grass || Tom Bundy || Raymond Little <br /> Gustave Touchard || 3–6, 6–2, 6–1, 7–5
|-
| style="background:#98fb98;"|Win || 1913 || style="background:#ccf;"|U.S. National Championships || Grass || Tom Bundy || John Strachan <br /> Clarence Griffin || 6–4, 7–5, 6–1
|-
| style="background:#98fb98;"|Win || 1914 || style="background:#ccf;"|U.S. National Championships || Grass || Tom Bundy || George Church<br /> Dean Mathey || 6–4, 6–2, 6–4
|-
| style="background:#ffa07a;"|Loss || 1915 || style="background:#ccf;"|U.S. National Championships || Grass || Tom Bundy || Clarence Griffin<br /> Bill Johnston || 6–2, 3–6, 4–6, 6–3, 3–6
|-
| style="background:#ffa07a;"|Loss || 1916 || style="background:#ccf;"|U.S. National Championships || Grass || Henry Ward Dawson || Clarence Griffin<br /> Bill Johnston || 4–6, 3–6, 7–5, 3–6
|}
Singles performance timeline
<small>Events with a challenge round: (W<sub>C</sub>) won; (CR) lost the challenge round; (F<sub>A</sub>) all comers' finalist</small>
{| class="wikitable nowrap" style=font-size:86%;text-align:center
|-
! style="width:70px;"| !! 1909 !! 1910 !! 1911 !! colspan=2|1912 !! 1913 !! 1914 !! 1915 !! 1916 !! 1917 !! 1918 !! 1919
! style="width:40px;" | SR
! style="width:40px;" |
! style="width:40px;" | Win %
|-
!style="text-align:left;" colspan=33 |Grand Slam tournaments
|-
|style="text-align:left;" bgcolor=efefef |Australian
| A
| A
| A
| colspan=2|A
| A
| A
| A
| colspan=3 style=color:#767676|Not held
| A
| bgcolor=efefef |0 / 0
| bgcolor=efefef |–
| bgcolor=efefef |–
|-
| style="text-align:left;" bgcolor=efefef |French
| colspan=7 style=color:#767676|Only for French club members
| colspan=5 style=color:#767676|Not held
| bgcolor=efefef |0 / 0
| bgcolor=efefef |–
| bgcolor=efefef |–
|-
|style="text-align:left;" bgcolor=efefef |Wimbledon
| A
| A
| A
| colspan=2 | A
| bgcolor=thistle |CR
| A
| colspan=4 style=color:#767676|Not held
| A
| bgcolor=efefef |0 / 1
| bgcolor=efefef |7–1
| bgcolor=efefef |87.5
|-
|style="text-align:left;" bgcolor=efefef |U.S.
| bgcolor=thistle |F<sub>A</sub>
| bgcolor=ffebcd |QF
| bgcolor=thistle |CR
| bgcolor=lime colspan=2|W<sub>C</sub>
| bgcolor=lime |W
| bgcolor=thistle |F
| bgcolor=thistle |F
| bgcolor=afeeee |4R
| A
| A
| bgcolor=ffebcd |QF
| bgcolor=efefef |2 / 9
| bgcolor=efefef |51–7
| bgcolor=efefef |87.9
|- style="background:#efefef;"
|style="text-align:left;" bgcolor=efefef |Win–loss
| 6–1
| 4–1
| 7–1
| colspan=2|8–0
| 14–1
| 6–1
| 6–1
| 3–1
|
|
| 4–1
! 2 / 10 !! 58–8 !! 87.9
|}