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BOSTON MARATHON 2024

Alexandra Childs

IL

Bib: 13718 F

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 42%
Gender (Female)
#0 / 10924
Top 28%
Division (F18-39)
#0 / 4660
Top 44%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:23/mi
22:55
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:22/mi
45:49
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:23/mi
1:08:44
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:24/mi
1:31:44
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:18/mi
1:36:43
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:05/mi
1:56:20
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:22/mi
2:25:27
↑ 181↓ 1480.2%
138 ft elev
20M
9:15/mi
2:38:01
↑ 64↓ 500.2%
148 ft elev
21M
10:53/mi
2:48:54
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:03/mi
2:54:55
↑ 17↓ 861.7%
156 ft elev
23M
8:22/mi
3:05:23
↑ 23↓ 630.6%
116 ft elev
24M
9:57/mi
3:15:20
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:49/mi
3:23:44
↓ 200.3%
20 ft elev
25.2M
9:05/mi
3:26:52
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:45/mi
3:34:46
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:43
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:58:03
Pace9:00 /mi
📊Positive Split: 22.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1222:557:2322:55
7:23
-
10K
6.21 mi11:16:0645:497:2222:54
7:22
-0:01
15K
9.32 mi11:39:011:08:447:2222:55
7:23
+0:01
20K
12.43 mi12:02:011:31:447:2323:00
7:24
+0:01
Half
13.11 mi12:07:001:36:437:234:59
7:18
-0:06
25K
15.53 mi12:26:371:56:207:2919:37
8:05
+0:47
30K
18.64 mi12:55:442:25:277:4829:07
9:22
+1:17
20M
20.00 mi13:08:182:38:017:5412:34
9:15
-0:07
21M
21.00 mi13:19:112:48:548:0310:53
10:53
+1:38
35K
21.75 mi13:25:122:54:558:036:01
8:03
-2:50
23M
23.00 mi13:35:403:05:238:0410:28
8:22
+0:19
24M
24.00 mi13:45:373:15:208:089:57
9:57
+1:35
40K
24.85 mi13:54:013:23:448:128:24
9:49
-0:08
25.2M
25.20 mi13:57:093:26:528:133:08
9:05
-0:44
Finish
26.22 mi14:05:033:34:468:127:54
7:45
-1:20

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:18 /mi

Average Pace

8:12 /mi

Slowest Pace

10:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:43

45% of race

Time at Steady Pace

44:00

20% of race

Time at Slower Pace

1:14:03

34% of race

Average Pace: 8:11 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:53:1222:557:2322:55
7:23
#9765
10K
6.21 mi11:16:0645:497:2222:54
7:22
#9437
15K
9.32 mi11:39:011:08:447:2222:55
7:23
#9158
20K
12.43 mi12:02:011:31:447:2323:00
7:24
#8719
Half
13.11 mi12:07:001:36:437:234:59
7:18
#8672
25K
15.53 mi12:26:371:56:207:2919:37
8:05
#8985
30K
18.64 mi12:55:442:25:277:4829:07
9:22
#10264
20M
20.00 mi13:08:182:38:017:5412:34
9:15
#10510
21M
21.00 mi13:19:112:48:548:0310:53
10:53
#10890
35K
21.75 mi13:25:122:54:558:036:01
8:03
#10766
23M
23.00 mi13:35:403:05:238:0410:28
8:22
#10506
24M
24.00 mi13:45:373:15:208:089:57
9:57
#10837
40K
24.85 mi13:54:013:23:448:128:24
9:49
#10985
25.2M
25.20 mi13:57:093:26:528:133:08
9:05
#10888
Finish
26.22 mi14:05:033:34:468:127:54
7:45
#10709
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9765191919198712(Top 34%)1571(Top 14%)1571(Top 34%)
10K6.21 mi3.10 mi9437+3281799+1201799+1209228(Top 36%)1754(Top 16%)1754(Top 38%)
15K9.32 mi3.11 mi9158+2791698+1011698+1018712(Top 34%)1571(Top 14%)1571(Top 34%)
20K12.43 mi3.11 mi8719+4391551+1471551+1477668(Top 30%)1253(Top 11%)1253(Top 27%)
Half13.11 mi0.68 mi8672+471532+191532+197782(Top 30%)1293(Top 12%)1293(Top 28%)
25K15.53 mi2.42 mi8985-3131708-1761708-17610770(Top 42%)2850(Top 26%)2850(Top 61%)
30K18.64 mi3.11 mi10264-12792457-7492457-74914919(Top 58%)5365(Top 49%)5365(Top 115%)
20M20.00 mi1.36 mi10510-2462634-1772634-17713384(Top 52%)4776(Top 44%)4776(Top 102%)
21M21.00 mi1.00 mi10890-3802883-2492883-24916033(Top 63%)6347(Top 58%)6347(Top 136%)
35K21.75 mi0.75 mi10766+1242852+312852+318101(Top 32%)2277(Top 21%)2277(Top 49%)
23M23.00 mi1.25 mi10506+2602787+652787+657711(Top 30%)2255(Top 21%)2255(Top 48%)
24M24.00 mi1.00 mi10837-3312989-2022989-20216148(Top 63%)6516(Top 60%)6516(Top 140%)
40K24.85 mi0.85 mi10985-1483121-1323121-13214360(Top 56%)5695(Top 52%)5695(Top 122%)
25.2M25.20 mi0.35 mi10888+973097+243097+247017(Top 27%)2197(Top 20%)2197(Top 47%)
Finish26.22 mi1.02 mi10709+1793050+473050+477105(Top 28%)2172(Top 20%)2172(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

8712

Females

1571

F18-39

1571

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9228

Females

1754

F18-39

1754

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

8712

Females

1571

F18-39

1571

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

7668

Females

1253

F18-39

1253

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

7782

Females

1293

F18-39

1293

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

10770

Females

2850

F18-39

2850

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

14919

Females

5365

F18-39

5365

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13384

Females

4776

F18-39

4776

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

16033

Females

6347

F18-39

6347

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8101

Females

2277

F18-39

2277

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

7711

Females

2255

F18-39

2255

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16148

Females

6516

F18-39

6516

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14360

Females

5695

F18-39

5695

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7017

Females

2197

F18-39

2197

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

7105

Females

2172

F18-39

2172

Passing Analysis

Category:
Athletes Passed
2380
Passed By
3321
Net Change
-944
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9765
5K → 10K434106+328#9765#9437
10K → 15K33152+279#9437#9158
15K → 20K45920+439#9158#8719
20K → Half5912+47#8719#8672
Half → 25K116429-313#8672#8985
25K → 30K491326-1279#8985#10264
30K → 20M78323-246#10264#10510
20M → 21M47427-380#10510#10890
21M → 35K13511+124#10890#10766
35K → 23M28626+260#10766#10506
23M → 24M41372-331#10506#10837
24M → 40K55203-148#10837#10985
40K → 25.2M1025+97#10985#10888
25.2M → Finish1889+179#10888#10709
TOTALS23803321-944
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing