As animals explore a novel environment, hippocampal place cells newly generate place-selective firing, forming a cognitive map. After learning, memory consolidation is considered to be mediated by patterned reactivation of the same subsets of place cells, possibly serving as a crucial neurophysiological substrate to induce synaptic plasticity. There are two distinct periods when such neuronal reactivation associated with sharp wave ripple events is frequently observed; a reward consumption period immediately after running and a rest period after exploration. The relationship of reactivation patterns between these different periods remains to be examined. We performed a multiunit recording from hippocampal CA1 place cells when rats are running and consuming reward on a U-shaped track in a novel room. We found that the coactivation patterns of specific neuronal populations in the reward period were significantly positively correlated with those in the postrest period, whereas weaker correlations were observed between the running and postrest periods. These results demonstrate that reactivation patterns during reward consumption are more crucial than those during running to induce plastic changes in the circuit.