Joshua Posthuma

Country

USA

Birth Year

2000

Gender

M

Title

International Master

FIDE ID

2096889

USCF ID

13856778

USCF Rating

2465

FIDE ratings

2372

Classical

Published FIDE

2439

Rapid

Published FIDE

2318

Blitz

Published FIDE

Official classical ranks

World rank
#2224
National rank · USA
#109

Active players · Oct 2026 FIDE list ⓘ

Rating history

Highest recorded rating
2457 Apr 2023
Recorded years
2015–2026
Archived games
285

Based on available monthly lists and saved games.

FIDE rating history

Published rating lists through Oct 2026.

View rating lists

USCF rating history

Published rating lists through Oct 2026.

View rating lists
Available Games

Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-06 (UTC).

# Date Event Site Round White Black Result Moves View
51 2024-08-14 Budapest 1 Week Aug GMA Budapest HUN 1.1 Jakub Fus Joshua Posthuma 1/2-1/2 59 Open
52 2024-06-30 17th Philadelphia Int Philadelphia USA 7.4 Fidel Corrales Jimenez Joshua Posthuma 1-0 59 Open
53 2024-03-31 Charlotte Spring IMC 2024 Charlotte USA 9.2 Joshua Posthuma Lucius Melillo 1/2-1/2 47 Open
54 2024-03-31 Charlotte Spring IMC 2024 Charlotte USA 8.4 Sibo Wu Joshua Posthuma 0-1 97 Open
55 2024-03-30 Charlotte Spring IMC 2024 Charlotte USA 7.3 Joshua Posthuma James Le Nguyen 1-0 56 Open
56 2024-03-30 Charlotte Spring IMC 2024 Charlotte USA 6.3 Harshid Kunka Joshua Posthuma 1/2-1/2 32 Open
57 2024-03-29 Charlotte Spring IMC 2024 Charlotte USA 5.4 Joshua Posthuma Graham Horobetz 1-0 33 Open
58 2024-03-29 Charlotte Spring IMC 2024 Charlotte USA 4.2 Yessica Yissel Mendez Tovar Joshua Posthuma 0-1 35 Open
59 2024-03-28 Charlotte Spring IMC 2024 Charlotte USA 3.5 Joshua Posthuma Martha L. Fierro Baquero 1-0 31 Open
60 2024-03-28 Charlotte Spring IMC 2024 Charlotte USA 2.1 Doug Eckert Joshua Posthuma 1/2-1/2 50 Open
61 2024-03-27 Charlotte Spring IMC 2024 Charlotte USA 1.5 Dimitri Komarov Joshua Posthuma 1/2-1/2 31 Open
62 2023-12-21 SPICE Cup Open 2023 Chesterfield MO USA 8.4 Aram Hakobyan Joshua Posthuma 1-0 36 Open
63 2023-12-21 SPICE Cup Open 2023 Chesterfield MO USA 7.4 Joshua Posthuma Pham Tran Gia Phuc 1/2-1/2 21 Open
64 2023-12-20 SPICE Cup Open 2023 Chesterfield MO USA 6.9 Annamaria Marjanovic Joshua Posthuma 0-1 61 Open
65 2023-12-19 SPICE Cup Open 2023 Chesterfield MO USA 4.9 Joshua Posthuma Ethan Sheehan 1-0 39 Open
66 2023-12-18 SPICE Cup Open 2023 Chesterfield MO USA 3.7 Joshua Posthuma Harsha Bharathakoti 0-1 31 Open
67 2023-12-18 SPICE Cup Open 2023 Chesterfield MO USA 2.8 Isaac Wang Joshua Posthuma 1/2-1/2 29 Open
68 2023-12-17 SPICE Cup Open 2023 Chesterfield MO USA 1.12 Joshua Posthuma Jingyun (ryan) Yang 1-0 64 Open
69 2023-11-06 1000GM Nov GM 2023 Fort Lauderdale USA 9.1 Jakub Fus Joshua Posthuma 1/2-1/2 37 Open
70 2023-11-06 1000GM Nov GM 2023 Fort Lauderdale USA 8.1 Joshua Posthuma Josiah Stearman 0-1 40 Open
71 2023-11-05 1000GM Nov GM 2023 Fort Lauderdale USA 7.1 Luka Budisavljevic Joshua Posthuma 0-1 25 Open
72 2023-11-05 1000GM Nov GM 2023 Fort Lauderdale USA 6.1 Joshua Posthuma Ekin Baris Ozenir 1/2-1/2 49 Open
73 2023-11-04 1000GM Nov GM 2023 Fort Lauderdale USA 5.1 Robby Kevlishvili Joshua Posthuma 1/2-1/2 72 Open
74 2023-11-04 1000GM Nov GM 2023 Fort Lauderdale USA 4.1 Joshua Posthuma Kostya Kavutskiy 1-0 47 Open
75 2023-11-03 1000GM Nov GM 2023 Fort Lauderdale USA 3.1 Alexander Fishbein Joshua Posthuma 1/2-1/2 21 Open
76 2023-11-03 1000GM Nov GM 2023 Fort Lauderdale USA 2.1 Joshua Posthuma Bach Ngo 1/2-1/2 72 Open
77 2023-11-02 1000GM Nov GM 2023 Fort Lauderdale USA 1.1 Joshua Posthuma Mark Heimann 1/2-1/2 33 Open
78 2023-08-06 123nd US Open 2023 Grand Rapids, MI USA 9.4 David Brodsky Joshua Posthuma 1/2-1/2 58 Open
79 2023-08-05 123nd US Open 2023 Grand Rapids, MI USA 8.6 Joshua Posthuma Avi Harrison Kaplan 1/2-1/2 26 Open
80 2023-08-04 123nd US Open 2023 Grand Rapids, MI USA 7.8 Joshua Posthuma Unidentified player 1-0 1 Open
81 2023-08-02 123nd US Open 2023 Grand Rapids, MI USA 5.8 Kostya Kavutskiy Joshua Posthuma 0-1 35 Open
82 2023-07-31 123nd US Open 2023 Grand Rapids, MI USA 3.8 Joshua Posthuma Dmitry Gurevich 0-1 48 Open
83 2023-07-29 123nd US Open 2023 Grand Rapids, MI USA 1.8 Nicholas Ladan Joshua Posthuma 0-1 36 Open
84 2023-06-11 CAN Transnational Classic Montreal CAN 9.1 Gergely-Andras-Gyula Szabo Joshua Posthuma 1/2-1/2 7 Open
85 2023-06-11 CAN Transnational Classic Montreal CAN 8.16 Joshua Posthuma Thalia Cervantes Landeiro 1-0 44 Open
86 2023-06-10 CAN Transnational Classic Montreal CAN 7.8 Arturs Neiksans Joshua Posthuma 1-0 32 Open
87 2023-06-10 CAN Transnational Classic Montreal CAN 6.6 Joshua Posthuma Lazaro Bruzon Batista 1/2-1/2 63 Open
88 2023-06-09 CAN Transnational Classic Montreal CAN 5.8 Aleksandr Lenderman Joshua Posthuma 1/2-1/2 47 Open
89 2023-06-09 CAN Transnational Classic Montreal CAN 4.16 Joshua Posthuma Eugene Hua 1-0 32 Open
90 2023-06-08 CAN Transnational Classic Montreal CAN 3.7 Viktor Matviishen Joshua Posthuma 1-0 28 Open
91 2023-06-07 CAN Transnational Classic Montreal CAN 2.7 Joshua Posthuma Omar Almeida Quintana 1/2-1/2 50 Open
92 2023-06-06 CAN Transnational Classic Montreal CAN 1.21 Oksana Golubeva Joshua Posthuma 0-1 77 Open
93 2023-06-04 CAN Transnational Rapid Toronto CAN 11.8 Joshua Posthuma Viktor Matviishen 0-1 44 Open
94 2023-06-03 CAN Transnational Rapid Toronto CAN 3.3 Lazaro Bruzon Batista Joshua Posthuma 1-0 31 Open
95 2023-06-03 CAN Transnational Rapid Toronto CAN 2.2 Joshua Posthuma Mateusz Bartel 1/2-1/2 36 Open
96 2023-06-03 CAN Transnational Rapid Toronto CAN 1.1 Evgeny Bareev Joshua Posthuma 0-1 35 Open
97 2023-05-29 32nd Chicago Open 2023 Chicago USA 9 Joshua Posthuma Eric Liu 1/2-1/2 78 Open
98 2023-05-29 32nd Chicago Open 2023 Chicago USA 8 Nicholas Ladan Joshua Posthuma 0-1 24 Open
99 2023-05-28 32nd Chicago Open 2023 Chicago USA 7 Joshua Posthuma Rose Atwell 1-0 41 Open
100 2023-05-28 32nd Chicago Open 2023 Chicago USA 6 Ryan Amburgy Joshua Posthuma 1-0 53 Open

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