David Ottosen
| Name | City | CFC Id | CFC Expiry | Regular Rating | Regular High | Quick Rating | Quick High | FIDE Id | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Ottosen, David | Barrie, ON | 104728 | 2023-03-31 | 2119 | 2237 | 2086 | 2107 | 2603080 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| End Date | Type | Games Played | Score | Old Rating | Perf Rating | New Rating | Highest Rating | ||
|---|---|---|---|---|---|---|---|---|---|
| Kitchener Active Round Robin A | 2022-04-23 | Q | 5 | 2 | 2113 | 1975 | 2086 | 2107 | |
| 2018 Aurora Chess Day | 2018-06-09 | R | 3 | 2 | 2136 | 1892 | 2119 | 2237 | |
| 2014 Battle of Alberta | 2014-09-13 | R | 2 | 1.5 | 2128 | 2239 | 2136 | 2237 | |
| ECC Summer Open 2014 | 2014-07-31 | R | 4 | 5.5 | 2041 | 2344 | 2128 | 2237 | |
| 2013 Battle of Alberta | 2013-09-07 | R | 2 | 0 | 2067 | 1734 | 2041 | 2237 | |
| 2013 Rapid Playoffs Edmonton Ch | 2013-03-07 | Q | 2 | 0.5 | 2084 | 2002 | 2078 | 2084 | |
| 2013 Edmonton Closed Ch | 2013-02-28 | R | 2 | 1 | 2070 | 2043 | 2067 | 2237 | |
| 2012 ECC Autumn Open | 2012-09-27 | R | 4 | 2 | 2083 | 2012 | 2070 | 2237 | |
| 18th Medicine Hat Open | 2012-09-16 | R | 5 | 3.5 | 2095 | 2019 | 2083 | 2237 | |
| 7th Edmonton International Qual | 2012-04-29 | R | 3 | 2 | 2096 | 2042 | 2095 | 2237 | |
| ECC Capablanca Classic | 2012-03-29 | R | 4 | 2.5 | 2080 | 2184 | 2096 | 2237 | |
| 2012 Northern Alberta Open | 2012-02-19 | R | 5 | 3 | 2084 | 2056 | 2080 | 2237 | |
| ECC Ottosen Open | 2008-08-28 | R | 2 | 1 | 2109 | 1569 | 2084 | 2237 | |
| ECC Ottosen Open | 2007-06-28 | R | 1 | 1.5 | 2103 | 2263 | 2109 | 2237 | |
| Battle of Alberta I | 2006-07-29 | R | 2 | 2 | 2077 | 2381 | 2101 | 2237 | |
| June Sectional Section C | 2004-06-06 | R | 5 | 4 | 2040 | 2230 | 2077 | 2237 | |
| Calgary Closed Sec A | 2003-02-18 | R | 7 | 3.5 | 2035 | 2057 | 2040 | 2237 | |
| Trumpeter Classic | 2003-01-19 | R | 5 | 3 | 2034 | 2021 | 2035 | 2237 | |
| Calgary Open | 2002-11-19 | R | 2 | 2.5 | 2016 | 2252 | 2034 | 2237 | |
| Southern Alberta Open | 2002-11-17 | R | 3 | 2 | 2025 | 1927 | 2016 | 2237 | |
| 2002 Alberta Open | 2002-10-14 | R | 6 | 4 | 2000 | 2107 | 2025 | 2237 | |
| Return of the Rock Lacroix Open | 2002-08-18 | R | 5 | 3 | 2048 | 1759 | 2000 | 2237 | |
| Battle of Alberta | 2002-08-10 | R | 1 | 1 | 2062 | 1701 | 2048 | 2237 | |
| ECC Spring Open | 2002-03-28 | R | 3 | 2 | 2072 | 1942 | 2062 | 2237 | |
| Edmonton CC Championship | 2002-02-14 | R | 7 | 5.5 | 2053 | 2102 | 2072 | 2237 | |
| Trumpeter Classic | 2002-01-20 | R | 5 | 3 | 2085 | 1895 | 2053 | 2237 | |
| Two Weeks Before Christmas | 2001-12-16 | R | 1 | 3 | 2083 | 2068 | 2085 | 2237 | |
| Battle of Alberta | 2001-08-11 | R | 2 | 1 | 2082 | 2091 | 2083 | 2237 | |
| Abe Yanofsky Memorial Tmt | 2001-05-27 | R | 3 | 2 | 2122 | 1724 | 2082 | 2237 | |
| Alberta Closed 2001 | 2001-04-15 | R | 7 | 2.5 | 2120 | 2126 | 2122 | 2237 | |
| Edmonton Championship 2001 | 2001-02-28 | R | 8 | 4 | 2141 | 2048 | 2120 | 2237 | |
| Trumpeter Classic 2001 | 2001-01-21 | R | 5 | 4 | 2136 | 2089 | 2141 | 2237 | |
| ECC Dance O Power | 2000-11-30 | R | 3 | 2.5 | 2132 | 2150 | 2136 | 2237 | |
| Southern AB Open | 2000-11-19 | R | 5 | 3.5 | 2116 | 2166 | 2132 | 2237 | |
| Edmonton Open | 2000-09-28 | R | 3 | 2.5 | 2115 | 2074 | 2116 | 2237 | |
| Edmonton Labour Day Over 1800 | 2000-09-03 | R | 5 | 3 | 2122 | 2081 | 2114 | 2237 | |
| ECC Summer Open | 2000-08-31 | R | 1 | 2 | 2114 | 1934 | 2115 | 2237 | |
| 24 Hour Marathon | 2000-08-27 | R | 10 | 6.5 | 2120 | 2106 | 2122 | 2237 | |
| Mad Active | 2000-08-26 | Q | 5 | 3 | 1996 | 1979 | 1995 | 1996 | |
| Battle of Alberta | 2000-08-12 | R | 2 | 1 | 2107 | 2266 | 2120 | 2237 | |
| ECC July Active | 2000-07-27 | Q | 2 | 2 | 1995 | 1744 | 1996 | 1996 | |
| 2000 Canadian Open | 2000-07-16 | R | 9 | 5 | 2111 | 2087 | 2107 | 2237 | |
| ECC Art Skeel Memorial | 2000-06-29 | R | 5 | 4 | 2115 | 1966 | 2111 | 2237 | |
| Select Six II | 2000-06-04 | R | 5 | 0.5 | 2132 | 2051 | 2115 | 2237 | |
| Alberta Closed Championship 2000 | 2000-05-22 | R | 4 | 0 | 2183 | 1862 | 2132 | 2237 | |
| Arnprior Open | 2000-05-07 | R | 5 | 2 | 2204 | 1940 | 2183 | 2237 | |
| Alberta Closed Championship | 2000-04-23 | R | 7 | 4.5 | 2161 | 2329 | 2204 | 2237 | |
| Edmonton Chess Club March Open | 2000-03-30 | R | 5 | 4 | 2168 | 2042 | 2161 | 2237 | |
| Edmonton Closed | 2000-02-24 | R | 7 | 2.5 | 2224 | 1766 | 2168 | 2237 | |
| Calgary January 2000 Open | 2000-02-15 | R | 5 | 4 | 2236 | 1981 | 2224 | 2237 | |
| Weekend Before Christmas | 1999-12-19 | R | 5 | 4 | 2237 | 2141 | 2236 | 2237 | |
| Memories of Fischer Active | 1999-12-16 | Q | 9 | 8 | 1983 | 1988 | 1995 | 1995 | |
| Christmas Classic | 1999-12-10 | R | 5 | 4 | 2232 | 2234 | 2237 | 2237 | |
| Dance O Joy | 1999-11-25 | R | 4 | 4 | 2228 | 2152 | 2232 | 2232 | |
| Southern Alberta Open | 1999-11-14 | R | 5 | 3.5 | 2220 | 2261 | 2228 | 2228 | |
| ECC Halloween Open | 1999-10-28 | R | 4 | 4 | 2212 | 2253 | 2220 | 2220 | |
| Alberta Open | 1999-10-11 | R | 6 | 4.5 | 2205 | 2236 | 2212 | 2212 | |
| 5th Medicine Hat Open | 1999-09-19 | R | 5 | 4.5 | 2190 | 2238 | 2205 | 2205 | |
| Battle of Alberta | 1999-08-14 | R | 2 | 1 | 2186 | 2232 | 2190 | 2191 | |
| 99 FCGIO Open | 1999-08-08 | R | 9 | 4 | 2139 | 2264 | 2186 | 2191 | |
| Simcoe Day Active U2000 | 1999-08-02 | Q | 6 | 5 | 1937 | 2101 | 1983 | 1983 | |
| Canada Day Open | 1999-06-27 | R | 5 | 4.5 | 2110 | 2221 | 2139 | 2191 | |
| Select Six | 1999-06-13 | R | 5 | 1.5 | 2101 | 2155 | 2110 | 2191 | |
| Alberta Reserves | 1999-04-04 | R | 2 | 2 | 2100 | 1912 | 2101 | 2191 | |
| Calgary March of Kings | 1999-03-21 | R | 5 | 3.5 | 2088 | 2134 | 2100 | 2191 | |
| Northern Alberta | 1999-02-21 | R | 5 | 3.5 | 2079 | 2085 | 2088 | 2191 | |
| Edmonton Closed | 1999-02-19 | R | 6 | 4 | 2066 | 2126 | 2079 | 2191 | |
| Hinton Foothills Classic | 1999-02-14 | R | 4 | 3 | 2036 | 2186 | 2066 | 2191 | |
| Grande Prairie Trumpeter Classic | 1999-01-24 | R | 5 | 3 | 2067 | 1865 | 2036 | 2191 | |
| Weekend Before Xmas | 1998-12-20 | R | 5 | 4 | 2036 | 2185 | 2073 | 2191 | |
| Edmonton CC December Open | 1998-12-17 | R | 3 | 2 | 2073 | 2008 | 2067 | 2191 | |
| Ottosen vs Hugley | 1998-10-30 | R | 4 | 1.5 | 2046 | 1979 | 2036 | 2191 | |
| ECC Oct Open | 1998-10-29 | R | 5 | 3 | 2070 | 1917 | 2046 | 2191 | |
| Alberta Open | 1998-10-12 | R | 6 | 4 | 2095 | 1945 | 2070 | 2191 | |
| 1998 Summer Open | 1998-08-27 | R | 4 | 2.5 | 2111 | 1973 | 2095 | 2191 | |
| ECC Tag Team | 1998-07-30 | R | 3 | 3 | 2116 | 2072 | 2111 | 2191 | |
| Edmonton Active Chess Champ | 1998-07-11 | Q | 4 | 3 | 1928 | 1974 | 1937 | 1937 | |
| Calgary Canada Day | 1998-07-05 | R | 5 | 2.5 | 2150 | 1976 | 2116 | 2191 | |
| Skeel Memorial | 1998-06-26 | R | 1 | 2.5 | 2148 | 2060 | 2150 | 2191 | |
| Ottosen vs Bjornsson | 1998-05-29 | R | 4 | 2.5 | 2139 | 2195 | 2148 | 2191 | |
| Memories of Fischer Open | 1998-05-28 | R | 3 | 0.5 | 2176 | 1865 | 2139 | 2191 | |
| Keres Memorial Open | 1998-05-18 | R | 7 | 3.5 | 2191 | 2187 | 2190 | 2191 | |
| Used To Be U of A Open | 1998-05-10 | R | 3 | 3 | 2180 | 2268 | 2191 | 2191 | |
| Alberta Closed | 1998-04-12 | R | 6 | 2.5 | 2158 | 2248 | 2180 | 2180 | |
| Schnitka Memorial | 1998-03-30 | R | 4 | 3.5 | 2190 | 1902 | 2176 | 2191 | |
| Edmonton Closed | 1998-02-19 | R | 7 | 6 | 2092 | 2256 | 2158 | 2158 | |
| Weekend Before Xmas | 1997-12-21 | R | 1 | 1 | 2090 | 2090 | 2092 | 2110 | |
| ECC Alekhine Active | 1997-12-18 | Q | 9 | 7.5 | 1865 | 1992 | 1928 | 1928 | |
| Rockies Challenge A | 1997-12-07 | Q | 4 | 4 | 1849 | 1660 | 1865 | 1865 | |
| Dance O Joy | 1997-11-27 | R | 4 | 4 | 2052 | 2235 | 2090 | 2110 | |
| ECC September | 1997-09-25 | R | 2 | 2 | 2074 | 1804 | 2052 | 2110 | |
| ACA O1800 | 1997-09-21 | R | 3 | 2 | 2102 | 1866 | 2074 | 2110 | |
| ECC August | 1997-08-28 | R | 2 | 2 | 2095 | 2136 | 2102 | 2110 | |
| Battle of Alberta | 1997-08-16 | R | 2 | 2 | 2048 | 2632 | 2095 | 2110 | |
| Edmonton July Open | 1997-07-31 | R | 4 | 4.5 | 2014 | 2181 | 2048 | 2110 | |
| Canadian Open | 1997-07-20 | R | 10 | 5.5 | 2040 | 2012 | 2018 | 2110 | |
| ECC June Open | 1997-06-29 | R | 4 | 3 | 2018 | 1988 | 2014 | 2110 | |
| Memories of Fisher | 1997-05-29 | R | 1 | 2 | 2067 | 1385 | 2040 | 2110 | |
| Toronto International U2100 | 1997-05-19 | R | 7 | 3.5 | 2086 | 2019 | 2067 | 2110 | |
| Edmonton April | 1997-04-24 | R | 4 | 3.5 | 2078 | 2089 | 2086 | 2110 | |
| Alberta Reserves | 1997-03-30 | R | 5 | 3 | 2110 | 1829 | 2078 | 2110 | |
| Snitka Memorial | 1997-03-25 | R | 4 | 4 | 2089 | 2194 | 2110 | 2110 | |
| Edmonton Closed | 1997-03-05 | R | 7 | 4 | 2047 | 2174 | 2089 | 2089 | |
| Trumpeter Classic | 1997-01-19 | R | 4 | 3 | 2055 | 1924 | 2047 | 2055 | |
| Weekend Before XMas | 1996-12-22 | R | 5 | 4 | 2019 | 2106 | 2055 | 2055 | |
| ECC December A | 1996-12-19 | R | 2 | 2.5 | 2000 | 2236 | 2019 | 2019 | |
| Southern Alberta Open | 1996-11-24 | R | 5 | 3 | 1982 | 2056 | 2000 | 2006 | |
| Battle of Alberta | 1996-10-31 | R | 2 | 0.5 | 2000 | 1774 | 1982 | 2006 | |
| Alberta Open | 1996-10-14 | R | 6 | 4 | 2006 | 1957 | 2000 | 2006 | |
| Edmonton CC Aug | 1996-08-29 | R | 4 | 3 | 1991 | 2006 | 2006 | 2006 | |
| ECC Summer | 1996-08-01 | R | 5 | 4 | 1939 | 2088 | 1991 | 2000 | |
| Memories of Fischer | 1996-06-20 | R | 5 | 3.5 | 1927 | 1977 | 1939 | 2000 |