Ratings
2020-10-03: Czech championship 2020(Czech Republic)
| KOTIN David | 54-10 | KOTIN Vladimir |
| RYBARIK Jan | 20-44 | KOTIN David |
2018-03-17: Czech GPO 3/2018(Czech Republic)
| KOTIN David | 37-27 | NOGA Pavel |
| KOTIN David | 37-27 | ZINCENKO Nikita |
| DOUDA Tomas | 40-24 | KOTIN David |
| KOTIN David | 48-16 | ZINCENKO Marina |
| CERNY Filip | 11-53 | KOTIN David |
| RYBARIK Jan | 36-28 | KOTIN David |
| KOTIN David | 49-15 | SLADEK Vitek |
2007-09-15 → 2007-09-16: Czech championship 2007(Czech Republic)
| KOTIN David | 01-63 | DOUDA Tomas |
| KOTIN David | 13-51 | KANOVSKY Petr |
| STASTNA Jan | 56-08 | KOTIN David |
| KOTIN David | 44-20 | HRUSAT Vladimir |
| RYBARIK Jan | 27-37 | KOTIN David |
| HVEZDOVA Jitka | 53-11 | KOTIN David |
| KOTIN David | 20-44 | VORACEK Miroslav |
2006-07-23: Czech championship 2006(Czech Republic)
2006-02-25: Czech GPO 4/2006(Czech Republic)
| KOTIN David | lost to | STASTNA Jan |
| SVADLENKA Jakub | won against | KOTIN David |
| KOTIN David | lost to | DREVOJANEK Radim |
| BERENBOYM Igor | won against | KOTIN David |
| KOTIN David | lost to | SOTOLOVA Nikola |
| KOTINOVA Hana | won against | KOTIN David |
| KOTIN David | lost to | DOUDA Tomas |
| KOTIN David | won against | SEVASTYANOV Michail |
| KOTIN David | won against | LANGOVA Natalie |
| KOTIN David | lost to | HRUSAT Vladimir |
| KOTIN David | won against | RAZOVA Tereza |
| KOTIN David | won against | DORFLOVA Ivana |
| VORACEK Miroslav | won against | KOTIN David |
2005-10-09: Czech GPO 1/2006(Czech Republic)
| KVAPIL Martin | won against | KOTIN David |
| TVAROH Lukas | lost to | KOTIN David |
| KOTIN David | won against | CHYBOVA Anna |
| VORACEK Miroslav | won against | KOTIN David |
| KOTIN David | won against | PUPOVA Zuzana |
| STASTNA Jan | won against | KOTIN David |
| DOUDA Tomas | won against | KOTIN David |
2004-12-05: II torneo Othello Club - Milano(Italy)
| BARNABA Donato | 64-00 | KOTIN David |
| KOTIN David | 49-15 | TORMENE Enrico |
| PALLADINO Domenico | 64-00 | KOTIN David |
| KOTIN David | 34-30 | BERSAGLIERI Daniela |
2000-08-19: MSO 2000_beginners A(Great-Britain)
| KIM Kwansoo | won against | KOTIN David |
| STASTNA Jan | won against | KOTIN David |
| SCHNIDER Gert | won against | KOTIN David |
| KOENIG Benjamin | won against | KOTIN David |
| HRABAL Vojtech | lost to | KOTIN David |
| KOTIN David | won against | HABRAKEN Nico |
| KOTIN David | lost to | LYSONS Carolyn |
| KOTIN David | won against | HABRAKEN Jeroen |
| KOTIN David | won against | LYSONS Leanne |