That success came a day after the 25-year-old won her first-ever Paralympics medal, a bronze in the T53 100m.
Kinghorn, of Gordon, finished runner-up to Switzerland’s Catherine Debrunner in a time of 57.25, a whisker ahead of China’s Zhou Hongzhuan on 57.29.
Debrunner’s winning time was 56.18.
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Talking to Channel 4 after the race, Kinghorn said: “I was literally like ‘come on, dig deep’.
“I knew Catherine was going to be strong, so when I felt her coming up my inside, I was like ‘stay with her. The closer you are to her, the more of a chance of a medal’.
“When I crossed the line, I was certain I was bronze and I was overwhelmed with that and then I heard ‘Samantha Kinghorn, silver medal and I was like ‘me? No way’.”
The former Earlston High School pupil’s two medal successes so far in Japan follow a near miss on Sunday, August 29, with a fourth-place finish in the T53 800m behind Australia’s Madison de Rozario, Hongzhuan and Debrunner.
Hongzhuan was also ahead of her yesterday in the T53 100m, won by China’s Gao Fang.
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