| Literature DB >> 33344943 |
Brian Hanley1, Arturo Casado2, Andrew Renfree3.
Abstract
The aim of this study was to establish whether the lane and heat draw influenced placings and progression in world-class 800-m track running. Finishing positions and times of 1,086 performances at the Olympic Games and IAAF World Championships between 1999 and 2017 were obtained. Mean finishing and season's best times (SB), as well as placings and progression rates, were found for each heat number and for the inner (Lanes 1 and 2), middle (Lanes 3-6), and outer lanes (Lanes 7 and 8). In the qualifying heats and semi-finals, the theoretically expected number of fastest losers (non-automatic qualifiers) per heat was compared with the actual number. One-way ANOVA with Bonferroni post-hoc tests were conducted to compare finishing times between lane and heat numbers across rounds. With regard to the order of heats, there were no differences between finishing times in either the qualifying heats or semi-final rounds for men; in the women's event, only Semi-final 3 was the quickest, but still did not have higher progression rates. SB times did not differ between heats within each round, highlighting the fair distribution of athletes. Progression rates for each lane during the qualifying heats ranged between 36 and 52% (men) and between 49 and 61% (women), close to the expected ranges of 45 and 55%, respectively. The middle lanes were quicker in the seeded semi-finals and finals only. Men in the outer lanes fared slightly worse and should focus on achieving the optimal tactical position after breaking from lanes. The IAAF could reconsider how they allocate seeded lanes in the later rounds by switching the fifth and sixth fastest athletes from the outer to the inner lanes. Regarding the heat draw, athletes mostly did not take advantage of knowing previous performances from earlier races, and probably focused on achieving an automatic qualifying position instead. However, the fastest losers in the women's last semi-final were faster and showed that benefitting from the heat draw is possible with tactical coaching.Entities:
Keywords: coaching; elite-standard athletes; endurance; race tactics; track and field
Year: 2019 PMID: 33344943 PMCID: PMC7739691 DOI: 10.3389/fspor.2019.00019
Source DB: PubMed Journal: Front Sports Act Living ISSN: 2624-9367
Example of how 48 athletes would be drawn into six qualifying heats.
| A | 1 | 12 | 13 | 24 | 25 | 36 | 37 | 48 |
| B | 2 | 11 | 14 | 23 | 26 | 35 | 38 | 47 |
| C | 3 | 10 | 15 | 22 | 27 | 34 | 39 | 46 |
| D | 4 | 9 | 16 | 21 | 28 | 33 | 40 | 45 |
| E | 5 | 8 | 17 | 20 | 29 | 32 | 41 | 44 |
| F | 6 | 7 | 18 | 19 | 30 | 31 | 42 | 43 |
Athletes are placed in qualifying heats (and semi-finals) using the order of seeding by season's best times (SB) in a zigzag distribution (IAAF, .
Figure 1Placings and progression rates (%) for each lane based on the proportion of athletes running in that lane who qualified for the next round, or who won medals in the final. The expected value (shown as a dotted line) refers to the percentage of athletes who would be expected to qualify from each lane or win a medal if randomly allocated.
The mean finishing and SB times (min:s) (±SD) for the inner (Lanes 1 and 2), middle (Lanes 3–6) and outer lanes (Lanes 7 and 8) in each round.
| Finishing time (min:s) | ||||||
| Qualifying heats | 1:47.32 (±1.29) | 1:47.39 (±1.43) | 1:47.48 (±1.23) | 2:02.17 (±1.93) | 2:02.47 (±2.47) | 2:02.28 (±2.18) |
| Semi-finals | 1:46.58 | 1:45.66 | 1:46.55 | 2:00.87 | 1:59.54 | 2:00.65 |
| Final | 1:45.33 (±1.24) | 1:44.92 | 1:45.89 | 1:59.04 | 1:57.68 | 1:59.05 |
| Season's best time (min:s) | ||||||
| Qualifying heats | 1:45.47 (±1.22) | 1:45.57 (±1.65) | 1:45.66 (±1.65) | 2:00.17 (±1.61) | 2:00.14 (±2.29) | 2:00.03 (±1.64) |
| Semi-finals | 1:45.69 | 1:44.09 | 1:45.27 | 2:00.37 | 1:58.31 | 1:59.86 |
| Final | 1:44.71 | 1:43.64 | 1:44.38 | 1:58.65 | 1:57.08 | 1:58.46 |
Significant difference between middle and inner lanes.
Significant difference between middle and outer lanes.
Significant difference between inner and outer lanes.
Significant differences (p < 0.05) between running times have been annotated only when the effect size was moderate or larger (d ≥ 0.61) and the 95% CI did not cross zero.
Progression of fastest losers by qualifying heat and semi-final in the men's event; the number of qualifiers (as fastest losers) is shown alongside the expected number from that heat number (“exp.”).
| Heats | ||||
| 1 | 14 | 7 (12) | 1:46.62 (±0.69) | 1:47.44 (±1.33) |
| 2 | 14 | 13 (12) | 1:46.40 (±0.47) | 1:47.22 (±1.17) |
| 3 | 14 | 17 (12) | 1:46.28 (±0.35) | 1:47.18 (±1.66) |
| 4 | 14 | 13 (12) | 1:46.12 (±0.53) | 1:47.25 (±1.22) |
| 5 | 14 | 14 (12) | 1:46.53 (±0.45) | 1:47.51 (±1.39) |
| 6 | 14 | 6 (12) | 1:46.45 (±0.61) | 1:47.78 (±1.38) |
| 7 | 8 | 7 (6) | 1:46.67 (±0.34) | 1:47.42 (±1.20) |
| 8 | 5 | 6 (5) | 1:46.07 (±0.26) | 1:47.35 (±1.33) |
| 9 | 1 | 0 (1) | – | 1:47.57 (±0.78) |
| Semi-finals | ||||
| 1 | 14 | 14 (9) | 1:44.92 (±0.50) | 1:46.00 (±1.21) |
| 2 | 14 | 9 (9) | 1:45.12 (±0.35) | 1:46.09 (±1.13) |
| 3 | 14 | 5 (9) | 1:45.38 (±0.35) | 1:46.23 (±1.32) |
The mean times (±SD) for the fastest losers, as well as all athletes in each heat, are also shown. All expected values were rounded to the nearest integer.
Progression of fastest losers by qualifying heat and semi-final in the women's races; the number of qualifiers (as fastest losers) is shown alongside the expected number from that heat number (“exp.”).
| Heats | ||||
| 1 | 11 | 9 (12) | 2:01.18 (±0.82) | 2:02.22 (±1.87) |
| 2 | 11 | 14 (12) | 2:01.24 (±1.10) | 2:02.20 (±2.21) |
| 3 | 11 | 7 (12) | 2:01.43 (±1.51) | 2:03.07 (±2.74) |
| 4 | 11 | 11 (12) | 2:01.10 (±1.69) | 2:02.15 (±2.08) |
| 5 | 11 | 13 (12) | 2:01.07 (±0.69) | 2:02.72 (±2.57) |
| 6 | 8 | 13 (9) | 2:01.24 (±1.16) | 2:01.78 (±2.13) |
| 7 | 1 | 0 (1) | – | 2:02.49 (±0.90) |
| 8 | 1 | 0 (1) | – | 2:01.23 (±1.89) |
| Semi-finals | ||||
| 1 | 11 | 5 (7) | 1:59.27 (±0.37) | 2:00.13 (±1.30) |
| 2 | 11 | 8 (7) | 1:59.21 (±0.71) | 1:59.91 (±1.30) |
| 3 | 11 | 9 (7) | 1:58.26 (±0.64) | 2:00.41 (±1.89) |
The mean times (±SD) for the fastest losers, as well as all athletes in each heat, are also shown. All expected values were rounded to the nearest integer.
The mean SB times (min:s) (±SD) for the fastest losers, as well as all athletes, in each heat.
| Qualifying heats | ||||
| 1 | 1:46.56 (±3.07) | 1:45.68 (±1.90) | 1:59.86 (±1.08) | 2:00.20 (±1.99) |
| 2 | 1:45.27 (±0.95) | 1:45.51 (±1.53) | 1:59.43 (±1.07) | 1:59.95 (±1.99) |
| 3 | 1:45.88 (±1.30) | 1:45.55 (±1.63) | 1:59.84 (±0.87) | 2:00.12 (±2.20) |
| 4 | 1:45.26 (±1.22) | 1:45.51 (±1.43) | 2:00.43 (±1.28) | 2:00.03 (±1.84) |
| 5 | 1:45.32 (±1.39) | 1:45.53 (±1.50) | 2:00.28 (±1.23) | 2:00.07 (±1.52) |
| 6 | 1:45.67 (±1.38) | 1:45.58 (±1.48) | 2:00.45 (±0.79) | 2:00.27 (±2.41) |
| 7 | 1:45.65 (±1.20) | 1:45.67 (±1.60) | – | 2:01.33 (±2.97) |
| 8 | 1:45.94 (±1.33) | 1:45.60 (±1.33) | – | 1:59.93 (±1.88) |
| 9 | – | 1:45.57 (±1.35) | – | – |
| Semi-finals | ||||
| 1 | 1:44.68 (±0.94) | 1:44.81 (±0.94) | 1:59.08 (±0.85) | 1:59.23 (±1.23) |
| 2 | 1:44.38 (±0.95) | 1:44.73 (±1.06) | 1:58.48 (±1.14) | 1:59.18 (±1.44) |
| 3 | 1:44.46 (±0.68) | 1:44.81 (±0.99) | 1:58.43 (±1.30) | 1:59.23 (±1.32) |