The FIDE World Chess Championship 2000 was held in New Delhi, India, and Tehran, Iran. The first six rounds were played in New Delhi between 27 November and 15 December 2000, and the final match in Tehran started on 20 December and ended on 24 December 2000. The top seeded Indian GrandmasterViswanathan Anand won the championship.
At the time of this championship, the World title was split. The newly crowned Classical World Champion, Vladimir Kramnik, did not participate, as well as the previous Classical Champion and world's highest-rated player, Garry Kasparov. However, most other strongest players of the world took part. The only other two absentees from the top 25 were Anatoly Karpov and Ye Jiangchuan.
The championship was a knockout tournament similar to other FIDE World Chess Championships between 1998 and 2004: the players were paired for short matches, with losers eliminated. 28 players (27 best rated and Liviu-Dieter Nisipeanu, one of the quarterfinalists of the previous championship) were given byes to the second round. The field of 100 participants was reduced to one winner over seven rounds.
Rounds 1–5 consisted of a two game match, followed by tie breaks at faster time controls if required. The time control for regular games was 100 minutes, with 50 minutes added after move 40, 10 minutes added after move 60, and 30 seconds added after each move starting with move 1. Tie breaks consisted of two rapid chess games (25 minutes each + 10 seconds per move); followed by two games with shorter time controls if required (15 minutes + 10 seconds per move); followed by a series of blitz games (4 minutes + 10 seconds per move for White, 5 minutes + 10 seconds per move for White, first player to win is the winner of the match). The semifinals (round 6) were best of four games, and the final was best of eight games, with the same conditions for the tie-breaks.
There was one rest day during round 4 and two rest days during round 6. The tie-breaks of rounds 1–5 were played in the evening following the second game. The final took place one month after rounds 1–6.
Round 1: 27 November 2000, 28 November 2000 (tiebreaks on 29 November 2000)
Round 2: 30 November 2000, 1 December 2000 (tiebreaks on 2 December 2000)
Round 3: 3 December 2000, 4 December 2000 (tiebreaks on 5 December 2000)
Round 4: 6 December 2000, 7 December 2000 (tiebreaks on 8 December 2000)
Round 5: 9 December 2000, 10 December 2000 (tiebreaks on 11 December 2000)
Round 6: 12 December 2000 – 15 December 2000 (tiebreaks on 16 December 2001)
Round 7: 20 December 2000 – 26 December 2000, with a rest day on 23 January 2001 (tiebreaks on 27 January 2001)