Taipei (CHN)
23.07.87, 37 years
23.07.87, 37 years
Country
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
USA
04.03.86, 39 years
04.03.86, 39 years
Huai-En Chang vs. Richard Johnson - head to head matches
| 23.03.09 | 1st round | Huai-En Chang | Richard Johnson | 6-4, 6-4 | match details |  India F2 | Clay |
Huai-En Chang form & Richard Johnson form
Huai-En Chang - last matches
 All Lower - Clay | ||||
| 28.08.20 1st round | vs. Seo-Jae Chang | 7-63, 7-68 |  | match details |
| 17.08.20 1st round | vs. Seo-Jae Chang | 7-65, 3-6, 4-10 |  | match details |
.png){kind=small} Chinese Taipei - Clay | ||||
| 07.11.11 1/4 | vs. Bowen Ouyang | 6-75, 3-6 | | match details |
| 07.11.11 1st round | vs. Tzu-Yang Lin | 5-7, 7-5, 6-2 | | match details |
| 07.11.11 2nd round | vs. Fei Yun Liao | 6-2, 7-5 | | match details |
| India F4 - Hard | ||||
| 27.04.09 1st round | vs. Masato Hatanaka | 7-5, 1-6, 4-6 | | match details |
| India F2 - Clay | ||||
| 23.03.09 1st round | vs. Richard Johnson | 6-4, 6-4 | | match details |
| 23.03.09 2nd round | vs. Benjamin Balleret | 2-6, 4-6 | | match details |
| India F2 - Hard | ||||
| 25.02.08 1st round | vs. Divij Sharan | 4-6, 4-6 | | match details |
| India F1 - Clay | ||||
| 18.02.08 1st round | vs. Alexey Kedryuk | 4-6, 1-6 | | match details |
 Guangzhou - Hard | ||||
| 28.01.08 q 2 | vs. Martin Pedersen | 4-6, 2-6 | | match details |
| 28.01.08 q 1 | vs. Bo Ye | 7-5, 6-4 | | match details |
| China - Hard | ||||
| 19.11.07 1st round | vs. Boy Westerhof | 6-72, 2-6 | | match details |
| Kaohsiung - I. hard | ||||
| 12.11.07 q 2 | vs. Cheng-Peng Hsieh | 6-4, 6-2 | | match details |
| 12.11.07 qual. | vs. Cecil Mamiit | 4-6, 1-6 | | match details |
 Pakistan F3 - Grass | ||||
| 05.11.07 1st round | vs. Jalil Khan | 6-71, 1-6 | | match details |
| Pakistan F2 - Grass | ||||
| 29.10.07 1st round | vs. Tanveer Ashiq | 6-2, 6-3 | | match details |
| 29.10.07 2nd round | vs. Vivek Shokeen | 3-6, 4-6 | | match details |
 Indonesia F6 - Hard | ||||
| 24.09.07 1st round | vs. Vaja Uzakov | 6-2, 1-6, 7-5 | | match details |
| 24.09.07 2nd round | vs. Peter Clarke | Peter Clarke - walk over | | match details |
| 24.09.07 1/4 | vs. Marinko Matosevic | 0-6, 6-73 | | match details |
| Indonesia F4 - Hard | ||||
| 10.09.07 1st round | vs. Hsien-Yin Peng | 5-7, 1-6 | | match details |
| Indonesia F - Hard | ||||
| 06.08.07 1/4 | vs. Cheong-Eui Kim | 7-63, 2-6, 6-2 | | match details |
| 06.08.07 1/2 | vs. Weerapat Doakmaiklee | 1-6, 4-6 | | match details |
| 06.08.07 1st round | vs. Kento Takeuchi | 7-63, 6-1 | | match details |
| 06.08.07 2nd round | vs. Sadik Kadir | 6-2, 4-0, Sadik Kadir - retired | | match details |
| China F2 - Hard | ||||
| 14.05.07 2nd round | vs. Yaoki Ishii | 7-5, 4-6, 4-6 | | match details |
| 14.05.07 1st round | vs. Hsin-Han Lee | 7-66, 6-3 | | match details |
 Australia F4 - Clay | ||||
| 19.03.07 1st round | vs. John Millman | 2-6, 6-4, 4-6 | | match details |
| Australia F3 - Hard | ||||
| 12.03.07 1st round | vs. Xavier Audouy | 0-6, 5-7 | | match details |
Richard Johnson - last matches
 Mexico F2 - Hard | ||||
| 09.05.11 1st round | vs. Nikoloz Basilashvili | 3-6, 4-6 | | match details |
 Recanati Challenger - Hard | ||||
| 19.07.10 q 1 | vs. Juan-Francisco Spina | 5-7, 7-65, 0-0, Juan-Francisco Spina - retired | | match details |
| 19.07.10 q 2 | vs. Ashwin Kumar | 2-6, 4-6 | | match details |
| Mexico F2 - Hard | ||||
| 26.04.10 1st round | vs. Timothy Bradshaw | 6-2, 7-60 | | match details |
| 26.04.10 2nd round | vs. Nima Roshan | 4-6, 2-6 | | match details |
 Calabasas Challenger - Hard | ||||
| 19.10.09 q 2 | vs. Ti Chen | 3-6, 0-6 | | match details |
| 19.10.09 q 1 | vs. Igor Sijsling | 6-4, 0-0, Igor Sijsling - retired | | match details |
| Los Angeles - Hard | ||||
| 25.07.09 q 1 | vs. Ryan Sweeting | 2-6, 1-6 | | match details |
| Aptos Challenger - Hard | ||||
| 13.07.09 q 1 | vs. John Lamble | 1-6, 1-6 | | match details |
| Mexico F5 - Hard | ||||
| 11.05.09 1st round | vs. Cesar Ramirez | 1-6, 1-6 | | match details |
| India F2 - Clay | ||||
| 23.03.09 1st round | vs. Huai-En Chang | 4-6, 4-6 | | match details |
| India F1 - Hard | ||||
| 16.03.09 1st round | vs. Vijayant Malik | 2-6, 1-6 | | match details |
 Toyota - Carpet | ||||
| 24.11.08 q 1 | vs. Hiroyasu Sato | 3-6, 3-6 | | match details |
| Yokohama - Hard | ||||
| 17.11.08 q 1 | vs. Peng Sun | 1-6, 4-6 | | match details |
| Mexico F13 - Hard | ||||
| 20.10.08 1st round | vs. Roman Borvanov | 6-3, 3-6, 6-2 | | match details |
| 20.10.08 2nd round | vs. Andriej Kapas | 4-6, 4-6 | | match details |
| Calabasas - Hard | ||||
| 13.10.08 q 1 | vs. Erik Chvojka | 4-6, 7-64, 7-62 | | match details |
| 13.10.08 q 2 | vs. Shane La Porte | 3-6, 7-5, 6-2 | | match details |
| 13.10.08 qual. | vs. Tim Smyczek | 3-6, 6-77 | | match details |
| Mexico F11 - Hard | ||||
| 06.10.08 2nd round | vs. Cesar Ramirez | 7-5, 6-75, 4-6 | | match details |
| 06.10.08 1st round | vs. Carlos Palencia | 6-4, 6-3 | | match details |
| Mexico F10 - Hard | ||||
| 29.09.08 1st round | vs. Yannick Vandenbulcke | 6-1, 6-1 | | match details |
| 29.09.08 2nd round | vs. Luis-Manuel Flores | 5-7, 7-65, 6-76 | | match details |
| Mexico F9 - Hard | ||||
| 22.09.08 1st round | vs. Christopher Racz | 4-6, 6-1, 3-6 | | match details |
 Spain F25 - Clay | ||||
| 30.06.08 1st round | vs. Roberto Bautista Agut | 0-6, 3-6 | | match details |
 Norway F3 - Clay | ||||
| 23.06.08 1st round | vs. Patrik Rosenholm | 3-6, 4-6 | | match details |
| Mexico F8 - Hard | ||||
| 19.05.08 1st round | vs. Joshua Ayala | 6-2, 6-1 | | match details |
| 19.05.08 2nd round | vs. Jonathan Kinsella | 6-4, 4-6, 1-6 | | match details |
| Mexico F6 - Hard | ||||
| 05.05.08 1st round | vs. Cristian Paiz | 5-7, 5-7 | | match details |
| USA F25 - Hard | ||||
| 01.10.07 1st round | vs. Christoph Palmanshofer | 4-6, 3-6 | | match details |