 Only the Siamese royal chronicle account says there was a formal elephant duel between Naresuan and Swa.Per Terwiel's analysis of the ten accounts, Swa and Naresuan both fought on their war elephant in the battle but no formal duel probably ever took place.According to Terwiel, it is highly unlikely that Swa would have agreed to a formal duel since agreeing to do so would have "jeopardized the costly invasion that had thus far progressed without a hitch."