Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Tournament | Tier | Surface | Opponent in the final | Score |
| --- | --- | --- | --- | --- | --- |
| 26 October 1998 | Melbourne , Victoria , Australia | ITF | Clay | Toby Mitchell | 6–2, 6–4 |
| 19 November 2001 | Australia | ITF | Hard | David McNamara | 6–4, 6–2 |
| 31 July 2006 | Germany | ITF | Clay | Nicolas Todero | 4–6, 6–4, 7–6 (2) |
| 21 August 2006 | Netherlands | ITF | Clay | Robin Haase | 6–4, 4–6, 6–3 |
| 19 November 2007 | Caloundra , Queensland, Australia | ITF | Hard | Todd Widom | 7–6 (2), 7–6 (5) |
| 26 November 2007 | Brisbane , Queensland, Australia | ITF | Hard | Go Soeda | 1–6, 6–0, 6–3 |
Question:
When David McNamara was the opponent in the final, what was the tier?
Answer:
ITF