- Name:
- Joshua Posthuma
- Federation:
United States- Sex:
- Male
- Born:
- 2000
- FIDE ID:
- 2096889 FIDE Profile
- Title:
- International Master
- ELO Classic:
- 2377
- ELO Rapid:
- 2439
- ELO Blitz:
- 2318
- Years:
- 2018 - 2026
- Total Games:
- 186
- Wins:
- 65 (34.95 %)
- Draws:
- 77 (41.4 %)
- Losses:
- 44 (23.66 %)
- Score:
- 55.65 %
Joshua Posthuma
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
|---|---|---|---|
| 35th Chicago Open 2026 | 05/21/2026 | 2352 |
United States |
| US Chess Masters 2025 | 11/26/2025 | 2327 |
United States |
| Royal City Masters 2025 | 08/01/2025 | 2250 | 
Canada |
| Marshall Summer Inv GMA | 07/08/2025 | 2439 |
United States |
Most Played Openings as White
| ECO | Opening | Games |
|---|---|---|
| D30 | Queen's gambit declined | 10 games |
| E04 | Catalan, open, 5.Nf3 | 7 games |
| E00 | Queen's pawn game | 6 games |
| E01 | Catalan, closed | 6 games |
Most Played Openings as Black
| ECO | Opening | Games |
|---|---|---|
| B10 | Caro-Kann defence | 7 games |
| B12 | Caro-Kann defence | 7 games |
| B13 | Caro-Kann, exchange variation | 7 games |
| A47 | Queen's Indian defence | 6 games |
Games played by Joshua Posthuma
| White | Elo | Black | Elo | Result | Moves | ECO | Year | Tournament | Moves |
|---|---|---|---|---|---|---|---|---|---|
| Posthuma, J | 2409 | Papp, L | 2365 | ½-½ | 52 | A13 | 2024 | Vezerkepzo GM Kluger Mem | |
| A132024Vezerkepzo GM Kluger Mem | |||||||||
| Pap, M | 2396 | Posthuma, J | 2412 | ½-½ | 80 | B10 | 2024 | Budapest 1 Week Aug GMA | |
| B102024Budapest 1 Week Aug GMA | |||||||||
| Posthuma, J | 2412 | Grover, S | 2507 | 1-0 | 40 | E00 | 2024 | Budapest 1 Week Aug GMA | |
| E002024Budapest 1 Week Aug GMA | |||||||||
| Tyurin, A | 2381 | Posthuma, J | 2412 | ½-½ | 64 | E90 | 2024 | Budapest 1 Week Aug GMA | |
| E902024Budapest 1 Week Aug GMA | |||||||||
| Posthuma, J | 2412 | Chubakov, S | 2318 | 1-0 | 29 | D00 | 2024 | Budapest 1 Week Aug GMA | |
| D002024Budapest 1 Week Aug GMA | |||||||||
| Azarya, J | 2370 | Posthuma, J | 2412 | ½-½ | 74 | B12 | 2024 | Budapest 1 Week Aug GMA | |
| B122024Budapest 1 Week Aug GMA | |||||||||
| Gombocz, F | 2330 | Posthuma, J | 2412 | ½-½ | 64 | A10 | 2024 | Budapest 1 Week Aug GMA | |
| A102024Budapest 1 Week Aug GMA | |||||||||
| Posthuma, J | 2412 | Damjanovic, V | 2343 | 0-1 | 47 | A41 | 2024 | Budapest 1 Week Aug GMA | |
| A412024Budapest 1 Week Aug GMA | |||||||||
| Posthuma, J | 2412 | Nguyen Huynh Minh, H | 2428 | 0-1 | 44 | D00 | 2024 | Budapest 1 Week Aug GMA | |
| D002024Budapest 1 Week Aug GMA | |||||||||
| Fus, J | 2406 | Posthuma, J | 2412 | ½-½ | 59 | A16 | 2024 | Budapest 1 Week Aug GMA | |
| A162024Budapest 1 Week Aug GMA | |||||||||
| Wu, S | 2142 | Posthuma, J | 2449 | 0-1 | 97 | A40 | 2024 | Charlotte Spring IMC 2024 | |
| A402024Charlotte Spring IMC 2024 | |||||||||
| Posthuma, J | 2449 | Melillo, L | 2274 | ½-½ | 47 | A04 | 2024 | Charlotte Spring IMC 2024 | |
| A042024Charlotte Spring IMC 2024 | |||||||||
| Kunka, H | 2294 | Posthuma, J | 2449 | ½-½ | 32 | B28 | 2024 | Charlotte Spring IMC 2024 | |
| B282024Charlotte Spring IMC 2024 | |||||||||
| Posthuma, J | 2449 | Nguyen, J | 2114 | 1-0 | 56 | D00 | 2024 | Charlotte Spring IMC 2024 | |
| D002024Charlotte Spring IMC 2024 | |||||||||
| Posthuma, J | 2449 | Horobetz, G | 2252 | 1-0 | 33 | A45 | 2024 | Charlotte Spring IMC 2024 | |
| A452024Charlotte Spring IMC 2024 | |||||||||
| Mendez Tovar, Y | 1993 | Posthuma, J | 2449 | 0-1 | 35 | B35 | 2024 | Charlotte Spring IMC 2024 | |
| B352024Charlotte Spring IMC 2024 | |||||||||
| Eckert, D | 2146 | Posthuma, J | 2449 | ½-½ | 50 | A14 | 2024 | Charlotte Spring IMC 2024 | |
| A142024Charlotte Spring IMC 2024 | |||||||||
| Posthuma, J | 2449 | Fierro Baquero, M | 2283 | 1-0 | 31 | B06 | 2024 | Charlotte Spring IMC 2024 | |
| B062024Charlotte Spring IMC 2024 | |||||||||
| Komarov, D | 2448 | Posthuma, J | 2449 | ½-½ | 31 | E90 | 2024 | Charlotte Spring IMC 2024 | |
| E902024Charlotte Spring IMC 2024 | |||||||||
| Posthuma, J | 2449 | Pham Tran Gia Phuc, | 2393 | ½-½ | 21 | E04 | 2023 | SPICE Cup Open 2023 | |
| E042023SPICE Cup Open 2023 | |||||||||
| Hakobyan, A | 2616 | Posthuma, J | 2449 | 1-0 | 36 | D45 | 2023 | SPICE Cup Open 2023 | |
| D452023SPICE Cup Open 2023 | |||||||||
| Marjanovic, A | 2284 | Posthuma, J | 2449 | 0-1 | 61 | B32 | 2023 | SPICE Cup Open 2023 | |
| B322023SPICE Cup Open 2023 | |||||||||
| Posthuma, J | 2449 | Sheehan, E | 2339 | 1-0 | 39 | A45 | 2023 | SPICE Cup Open 2023 | |
| A452023SPICE Cup Open 2023 | |||||||||
| Posthuma, J | 2449 | Harsha, B | 2570 | 0-1 | 31 | D30 | 2023 | SPICE Cup Open 2023 | |
| D302023SPICE Cup Open 2023 | |||||||||
| Wang, I | 2333 | Posthuma, J | 2449 | ½-½ | 29 | D45 | 2023 | SPICE Cup Open 2023 | |
| D452023SPICE Cup Open 2023 | |||||||||
| Posthuma, J | 2449 | Yang, J | 2129 | 1-0 | 64 | D90 | 2023 | SPICE Cup Open 2023 | |
| D902023SPICE Cup Open 2023 | |||||||||
| Fus, J | 2462 | Posthuma, J | 2445 | ½-½ | 37 | A30 | 2023 | 1000GM Nov GM 2023 | |
| A3020231000GM Nov GM 2023 | |||||||||
| Posthuma, J | 2445 | Stearman, J | 2451 | 0-1 | 40 | D26 | 2023 | 1000GM Nov GM 2023 | |
| D2620231000GM Nov GM 2023 | |||||||||
| Budisavljevic, L | 2515 | Posthuma, J | 2445 | 0-1 | 25 | B30 | 2023 | 1000GM Nov GM 2023 | |
| B3020231000GM Nov GM 2023 | |||||||||
| Posthuma, J | 2445 | Ozenir, E | 2391 | ½-½ | 49 | D23 | 2023 | 1000GM Nov GM 2023 | |
| D2320231000GM Nov GM 2023 | |||||||||
| Kevlishvili, R | 2535 | Posthuma, J | 2445 | ½-½ | 72 | B32 | 2023 | 1000GM Nov GM 2023 | |
| B3220231000GM Nov GM 2023 | |||||||||
| Posthuma, J | 2445 | Kavutskiy, K | 2394 | 1-0 | 47 | E81 | 2023 | 1000GM Nov GM 2023 | |
| E8120231000GM Nov GM 2023 | |||||||||
| Posthuma, J | 2445 | Ngo, B | 2367 | ½-½ | 72 | A45 | 2023 | 1000GM Nov GM 2023 | |
| A4520231000GM Nov GM 2023 | |||||||||
| Fishbein, A | 2382 | Posthuma, J | 2445 | ½-½ | 21 | B15 | 2023 | 1000GM Nov GM 2023 | |
| B1520231000GM Nov GM 2023 | |||||||||
| Posthuma, J | 2445 | Heimann, M | 2440 | ½-½ | 33 | D30 | 2023 | 1000GM Nov GM 2023 | |
| D3020231000GM Nov GM 2023 | |||||||||
| Szabo, G | 2504 | Posthuma, J | 2457 | ½-½ | 7 | A37 | 2023 | CAN Transnational Classic | |
| A372023CAN Transnational Classic | |||||||||
| Posthuma, J | 2457 | Cervantes Landeiro, T | 2271 | 1-0 | 44 | D23 | 2023 | CAN Transnational Classic | |
| D232023CAN Transnational Classic | |||||||||
| Neiksans, A | 2605 | Posthuma, J | 2457 | 1-0 | 32 | B10 | 2023 | CAN Transnational Classic | |
| B102023CAN Transnational Classic | |||||||||
| Posthuma, J | 2457 | Bruzon Batista, L | 2617 | ½-½ | 63 | A56 | 2023 | CAN Transnational Classic | |
| A562023CAN Transnational Classic | |||||||||
| Lenderman, A | 2566 | Posthuma, J | 2457 | ½-½ | 47 | D31 | 2023 | CAN Transnational Classic | |
| D312023CAN Transnational Classic | |||||||||