Kleefstra, H.




Ratings

Year       Rank    Edo    Dev.   Games 
1930  963  2122 (64) 15
1931  1008  2126 (71) 0
1932  1010  2130 (75) 0
1933  1011  2134 (77) 5
1934  1057  2129 (86) 0
1935  1128  2124 (94) 0
1936  1114  2120 (100) 0
1937  1086  2115 (106) 0
1938  1111  2110 (111) 0
1939  1055  2105 (115) 0
1940  948  2100 (119) 0
1941  933  2096 (122) 0
1942  887  2091 (125) 0
1943  865  2086 (128) 0
1944  868  2081 (131) 0
1945  900  2076 (133) 0
1946  885  2072 (135) 0
1947  776  2067 (136) 0
1948  569  2062 (138) 1

Rating table notes

Biographical data
Name: Kleefstra, H.  
Born:
Died:
 
References
Books
   Di Felice, Chess Results, 1921-1930, page 328
   Di Felice, Chess Results, 1931-1935, page 389
   Di Felice, Chess Results, 1947-1950, page 207
   Skinner and Verhoeven, Alexander Alekhine's Chess Games, page 476
   Thulin, Name index to CTC, page 133
Periodicals
   [NYTi], vol. 97, no. 13894, 15 Feb. 1948, page S5

Tournament data

Amsterdam 1930 (2)     Amsterdam City Championship     2.5  /  8
Valkenburg 1930     Valkenburg Tournament     5  /  7
Amsterdam 1933     Amsterdam Tournament     2  /  5
Amsterdam and New York 1948     Amsterdam - New York Radio Match    
  Kleefstra, H. - Jackson, E.S.     0.5 - 0.5    


Player information updated: 11 Jun. 2026