| Tunisia at the 2017 World Championships in Athletics | |
|---|---|
 | |
| WA code | TUN |
| in London | |
| Competitors | 3 in 3 events |
| Medals |
|
| World Championships in Athletics appearances | |
Tunisia competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4 to 13 August 2017. [1]
(q – qualified, NM – no mark, SB – season best)
| Athlete | Event | Heat | Semifinal | Final | |||
|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | ||
| Abdessalem Ayouni | 800 metres | 1:46.19 | 15 q | 1:47.39 | 22 | Did not advance | |
| Raouf Boubaker | 3000 metres steeplechase | 8:46.25 | 39 | — | Did not advance | ||
| Athlete | Event | Final | |
|---|---|---|---|
| Result | Rank | ||
| Chahinez Nasri | 20 kilometres walk | 1:35:45 | 39 |
The 200 metres, or 200-meter dash, is a sprint running event. On an outdoor 400 metre racetrack, the race begins on the curve and ends on the home straight, so a combination of techniques is needed to successfully run the race. A slightly shorter race, called the stadion and run on a straight track, was the first recorded event at the ancient Olympic Games. The 200 m places more emphasis on speed endurance than shorter sprint distances as athletes predominantly rely on anaerobic energy system during the 200 m sprint. Similarly to other sprint distances, the 200 m begins from the starting blocks. When the sprinters adopt the 'set' position in the blocks they are able to adopt a more efficient starting posture and isometrically preload their muscles. This enables them to stride forwards more powerfully when the race begins and start faster.
The 4 × 100 metres relay or sprint relay is an athletics track event run in lanes over one lap of the track with four runners completing 100 metres each. The first runners must begin in the same stagger as for the individual 400 m race. Each runner carries a relay baton. Before 2018, the baton had to be passed within a 20 m changeover box, preceded by a 10-metre acceleration zone. With a rule change effective November 1, 2017, that zone was modified to include the acceleration zone as part of the passing zone, making the entire zone 30 metres in length. The outgoing runner cannot touch the baton until it has entered the zone, and the incoming runner cannot touch it after it has left the zone. The zone is usually marked in yellow, frequently using lines, triangles or chevrons. While the rule book specifies the exact positioning of the marks, the colours and style are only "recommended". While most legacy tracks will still have the older markings, the rule change still uses existing marks. Not all governing body jurisdictions have adopted the rule change.
60 metres, or 60-meter dash, is a sprint event in track and field. It is a championship event for indoor championships, normally dominated by the best outdoor 100 metres runners. At indoor events, the 60 metres is run on lanes set out in the middle of the 'field', as is the hurdles event over the same distance, thus avoiding some of the effects of the banked track encircling the venue, upon which other track events in indoor events are run. At outdoor venues it is a rare distance, at least for senior athletes. The format of the event is similar to other sprint distances. The sprinters follow three initial instructions: 'on your marks', instructing them to take up position in the starting blocks; 'set', instructing them to adopt a more efficient starting posture, which also isometrically preloads their muscles. This will enable them to start faster. The final instruction is the firing of the starter's pistol. Upon hearing this the sprinters stride forwards from the blocks.
The 1500 metres or 1,500-metre run is the foremost middle distance track event in athletics. The distance has been contested at the Summer Olympics since 1896 and the World Championships in Athletics since 1983. It is equivalent to 1.5 kilometers or approximately 15⁄16 miles. The event is closely associated with its slightly longer cousin, the mile race, from which it derives its nickname "the metric mile".
Richard "Torpedo" Thompson is a sprinter from Trinidad and Tobago who specializes in the 100 metres. His personal best of 9.82 seconds, set in June 2014, was one of the top ten fastest of all time, and a national record. In the 200 meters he has the fourth fastest time by a Trinidad and Tobago athlete.
Joshua Kiprui Cheptegei is a Ugandan long-distance runner. He is the reigning Olympic champion in the 5000 metres and silver medalist for the 10,000 metres, a two-time 10,000 m World champion from 2019 and 2022, World silver medalist from 2017, and the 2019 World Cross Country champion. Cheptegei also won gold medals for the 5000 m and 10,000 m at the 2018 Commonwealth Games. He is the world record holder for both these disciplines and holds also the world best in the 15 kilometres road race.
Congo competed at the 2017 World Championships in Athletics in London, Great Britain, from 4–13 August 2017.
Democratic Republic of the Congo competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4–13 August 2017.
The men's shot put at the 2017 World Championships in Athletics was held at the Olympic Stadium on 5–6 August.
Equatorial Guinea competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4 to 13 August 2017.
Malawi competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4–13 August 2017.
Malta competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4–13 August 2017.
Indonesia competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4 to 13 August 2017.
Mali competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4–13 August 2017.
Mongolia competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4–13 August 2017.
Palestine competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4 to 13 August 2017.
Sri Lanka competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4–13 August 2017.
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