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DanielLC
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Every time the runner hits a corner, the photons should suddenly move to a different part of the track. Due relativity of simultaneity, "now" changes whenever the point of reference of the runner changes. This is the basis of the Rietdijk–Putnam argument. Also, if the second picture is supposed to be from the point of reference of the runner, the runner should be staying still and the track should be moving.

It would make more sense for the photon in front to be blue due to the doppler effect. Although if you carry that logic too far it will get pointlessly complicated. We only care about which photon is which, not how much energy they have.

DanielLC
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