1. Early Life and Junior Career
Jop Delemarre's early life and junior career were marked by significant achievements in the chess world.
1.1. Background
Jop Delemarre was born in 1977 and is of Dutch nationality.
1.2. Junior Achievements
Delemarre displayed early talent in chess. In 1991, he won the Dutch Junior Chess Championship in Group C, which was the category for players under 14 years old. His promising junior career continued, and in 1997, he participated in the World Junior Chess Championship, where he achieved a respectable 32nd place among 81 competitors.
2. Professional Chess Career
Jop Delemarre's professional chess career saw him achieve the rank of International Master and participate in numerous notable tournaments, showcasing his skills against strong competition.
2.1. International Master Title
Delemarre holds the title of International Master (IM), a significant achievement in competitive chess, recognizing his high level of play and performance in international tournaments.
2.2. Notable Tournament Performances
Delemarre competed in several prominent international chess events throughout his career:
- In January 1995, he played in the Hoogovens Wijk aan Zee Chess Tournament 1995, which featured a knockout match format. He was defeated by renowned Dutch grandmaster Jan Timman in the first round of the competition.
- The following year, in January 1996, Delemarre participated in Group B of the Hoogovens Wijk aan Zee Chess Tournament 1996. In this tournament, he secured notable victories against Friso Nijboer, Helgi Grétarsson, and Marinus Kuijf, all of whom were rated over 100 points higher than him at the time.
- At the 17th Boeblinger Open in Germany, Delemarre achieved third place among 265 participants. The tournament was won by Thomas Luther.
- In the Hoogeschool Zeeland Tournament, held in Vlissingen, Delemarre finished in 15th position. This event saw top performances from players such as Joan van der Wiel and Ivan Sokolov, who were among the initial winners.
- On March 18, 2005, Delemarre competed in Leiden's first timed simul tournament, scoring 5.5 points out of a possible 9.
3. Playing Style and Statistics
Jop Delemarre's playing style is characterized by specific opening choices and a consistent overall performance, as detailed by chess database analysis.
3.1. Simbase Analysis
According to the Simbase chess database, which compiles data from 519 opponents Delemarre has played, his overall record includes 205 wins, 156 losses, and 158 draws. This translates to a win rate of 54 percent. When playing with the white pieces, Delemarre typically begins his games with the 1.d4 opening. With the black pieces, he frequently employs the Pirc Defense and the Caro-Kann Defense as his preferred defensive strategies.
3.2. Opening Repertoire
The following tables provide detailed statistics on Jop Delemarre's performance across his frequently played openings, for both White and Black pieces.
With White Pieces
| Opening | Wins | Losses | Draws | Win Rate (%) |
|---|---|---|---|---|
| Queen's Indian Defense | 22 | 13 | 8 | 58 |
| Slav Defense | 15 | 12 | 10 | 54 |
| King's Indian Defense | 13 | 13 | 7 | 50 |
| Queen's Pawn Game | 9 | 3 | 6 | 66 |
| Benoni Defense | 10 | 7 | 8 | 56 |
| Queen's Gambit Declined | 10 | 3 | 7 | 67 |
| Dutch Defense | 12 | 1 | 5 | 80 |
| Caro-Kann Defense | 4 | 5 | 7 | 46 |
| Other | 51 | 33 | 39 | 57 |
With Black Pieces
| Opening | Wins | Losses | Draws | Win Rate (%) |
|---|---|---|---|---|
| Pirc Defense | 15 | 9 | 11 | 58 |
| Slav Defense | 7 | 13 | 8 | 39 |
| Caro-Kann Defense | 10 | 8 | 6 | 54 |
| Modern Defense | 7 | 5 | 3 | 56 |
| Réti Opening | 3 | 4 | 3 | 45 |
| King's Indian Defense | 4 | 4 | 2 | 50 |
| French Defense | 4 | 3 | 2 | 55 |
| Benoni Defense | 2 | 3 | 2 | 42 |
| Other | 14 | 10 | 8 | 56 |
4. Coaching Career
Jop Delemarre has a significant career as a chess coach, extending his contributions to the chess community beyond competitive play through extensive training and educational initiatives.
4.1. Coaching Experience and Roles
With over 20 years of experience as of May 2023, Delemarre has established himself as a seasoned chess trainer. He serves as a youth coach at Messe Mager in Gouda, Netherlands, dedicating his expertise to nurturing young talent. Additionally, he holds the position of lead trainer at ChessPlus's Online Chess Camp, guiding students in a virtual learning environment.
4.2. Online Education Activities
Delemarre has actively participated in the development of online chess education. In April 2020, he co-hosted a webinar with Jesper Hall, focusing on strategies for effective online chess teaching and learning. He continued his contributions to trainer development in January 2024, by holding a webinar specifically addressing chess and personal development for trainers.

5. Affiliations and Other Activities
Beyond his active roles as a player and coach, Jop Delemarre is also associated with a prominent online chess community.
5.1. Club Memberships
Jop Delemarre is a member of The Internet Chess Club, a notable online chess platform with a large community of approximately 30,000 members.